The d_delete function in fs/ecryptfs/inode.c in eCryptfs in the Linux kernel 2.6.31 allows local users to cause a denial of service (kernel OOPS) and possibly execute arbitrary code via unspecified vectors that cause a "negative dentry" and trigger a NULL pointer dereference, as demonstrated via a Mutt temporary directory in an eCryptfs mount.

The remote VMware ESX / ESXi host is missing a security-related patch.
It is, therefore, affected by multiple vulnerabilities, including remote code execution vulnerabilities, in several components and third-party libraries :

  - libpng
  - VMnc Codec
  - vmrun
  - VMware Remote Console (VMrc)
  - VMware Tools
  - vmware-authd

The remote VMware ESX host is missing a security-related patch. It is, therefore, affected by multiple vulnerabilities, including remote code execution vulnerabilities, in several third-party components and libraries :

  - bind
  - expat
  - glib2
  - Kernel
  - newt
  - nfs-utils
  - NTP
  - OpenSSH
  - OpenSSL

The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2013-0039 for details.

From Red Hat Security Advisory 2009:1548 :

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security fixes :

* a system with SELinux enforced was more permissive in allowing local users in the unconfined_t domain to map low memory areas even if the mmap_min_addr restriction was enabled. This could aid in the local exploitation of NULL pointer dereference bugs. (CVE-2009-2695, Important)

* a NULL pointer dereference flaw was found in the eCryptfs implementation in the Linux kernel. A local attacker could use this flaw to cause a local denial of service or escalate their privileges.
(CVE-2009-2908, Important)

* a flaw was found in the NFSv4 implementation. The kernel would do an unnecessary permission check after creating a file. This check would usually fail and leave the file with the permission bits set to random values. Note: This is a server-side only issue. (CVE-2009-3286, Important)

* a NULL pointer dereference flaw was found in each of the following functions in the Linux kernel: pipe_read_open(), pipe_write_open(), and pipe_rdwr_open(). When the mutex lock is not held, the i_pipe pointer could be released by other processes before it is used to update the pipe's reader and writer counters. This could lead to a local denial of service or privilege escalation. (CVE-2009-3547, Important)

* a flaw was found in the Realtek r8169 Ethernet driver in the Linux kernel. pci_unmap_single() presented a memory leak that could lead to IOMMU space exhaustion and a system crash. An attacker on the local network could abuse this flaw by using jumbo frames for large amounts of network traffic. (CVE-2009-3613, Important)

* missing initialization flaws were found in the Linux kernel. Padding data in several core network structures was not initialized properly before being sent to user-space. These flaws could lead to information leaks. (CVE-2009-3228, Moderate)

Bug fixes :

* with network bonding in the 'balance-tlb' or 'balance-alb' mode, the primary setting for the primary slave device was lost when said device was brought down. Bringing the slave back up did not restore the primary setting. (BZ#517971)

* some faulty serial device hardware caused systems running the kernel-xen kernel to take a very long time to boot. (BZ#524153)

* a caching bug in nfs_readdir() may have caused NFS clients to see duplicate files or not see all files in a directory. (BZ#526960)

* the RHSA-2009:1243 update removed the mpt_msi_enable option, preventing certain scripts from running. This update adds the option back. (BZ#526963)

* an iptables rule with the recent module and a hit count value greater than the ip_pkt_list_tot parameter (the default is 20), did not have any effect over packets, as the hit count could not be reached. (BZ#527434)

* a check has been added to the IPv4 code to make sure that rt is not NULL, to help prevent future bugs in functions that call ip_append_data() from being exploitable. (BZ#527436)

* a kernel panic occurred in certain conditions after reconfiguring a tape drive's block size. (BZ#528133)

* when using the Linux Virtual Server (LVS) in a master and backup configuration, and propagating active connections on the master to the backup, the connection timeout value on the backup was hard-coded to 180 seconds, meaning connection information on the backup was soon lost. This could prevent the successful failover of connections. The timeout value can now be set via 'ipvsadm --set'. (BZ#528645)

* a bug in nfs4_do_open_expired() could have caused the reclaimer thread on an NFSv4 client to enter an infinite loop. (BZ#529162)

* MSI interrupts may not have been delivered for r8169 based network cards that have MSI interrupts enabled. This bug only affected certain systems. (BZ#529366)

Users should upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security fixes :

* a system with SELinux enforced was more permissive in allowing local users in the unconfined_t domain to map low memory areas even if the mmap_min_addr restriction was enabled. This could aid in the local exploitation of NULL pointer dereference bugs. (CVE-2009-2695, Important)

* a NULL pointer dereference flaw was found in the eCryptfs implementation in the Linux kernel. A local attacker could use this flaw to cause a local denial of service or escalate their privileges.
(CVE-2009-2908, Important)

* a flaw was found in the NFSv4 implementation. The kernel would do an unnecessary permission check after creating a file. This check would usually fail and leave the file with the permission bits set to random values. Note: This is a server-side only issue. (CVE-2009-3286, Important)

* a NULL pointer dereference flaw was found in each of the following functions in the Linux kernel: pipe_read_open(), pipe_write_open(), and pipe_rdwr_open(). When the mutex lock is not held, the i_pipe pointer could be released by other processes before it is used to update the pipe's reader and writer counters. This could lead to a local denial of service or privilege escalation. (CVE-2009-3547, Important)

* a flaw was found in the Realtek r8169 Ethernet driver in the Linux kernel. pci_unmap_single() presented a memory leak that could lead to IOMMU space exhaustion and a system crash. An attacker on the local network could abuse this flaw by using jumbo frames for large amounts of network traffic. (CVE-2009-3613, Important)

* missing initialization flaws were found in the Linux kernel. Padding data in several core network structures was not initialized properly before being sent to user-space. These flaws could lead to information leaks. (CVE-2009-3228, Moderate)

Bug fixes :

* with network bonding in the 'balance-tlb' or 'balance-alb' mode, the primary setting for the primary slave device was lost when said device was brought down. Bringing the slave back up did not restore the primary setting. (BZ#517971)

* some faulty serial device hardware caused systems running the kernel-xen kernel to take a very long time to boot. (BZ#524153)

* a caching bug in nfs_readdir() may have caused NFS clients to see duplicate files or not see all files in a directory. (BZ#526960)

* the RHSA-2009:1243 update removed the mpt_msi_enable option, preventing certain scripts from running. This update adds the option back. (BZ#526963)

* an iptables rule with the recent module and a hit count value greater than the ip_pkt_list_tot parameter (the default is 20), did not have any effect over packets, as the hit count could not be reached. (BZ#527434)

* a check has been added to the IPv4 code to make sure that rt is not NULL, to help prevent future bugs in functions that call ip_append_data() from being exploitable. (BZ#527436)

* a kernel panic occurred in certain conditions after reconfiguring a tape drive's block size. (BZ#528133)

* when using the Linux Virtual Server (LVS) in a master and backup configuration, and propagating active connections on the master to the backup, the connection timeout value on the backup was hard-coded to 180 seconds, meaning connection information on the backup was soon lost. This could prevent the successful failover of connections. The timeout value can now be set via 'ipvsadm --set'. (BZ#528645)

* a bug in nfs4_do_open_expired() could have caused the reclaimer thread on an NFSv4 client to enter an infinite loop. (BZ#529162)

* MSI interrupts may not have been delivered for r8169 based network cards that have MSI interrupts enabled. This bug only affected certain systems. (BZ#529366)

Users should upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

CVE-2009-2695 kernel: SELinux and mmap_min_addr

CVE-2009-3228 kernel: tc: uninitialised kernel memory leak

CVE-2009-3286 kernel: O_EXCL creates on NFSv4 are broken

CVE-2009-2908 kernel ecryptfs NULL pointer dereference

CVE-2009-3613 kernel: flood ping cause out-of-iommu error and panic when mtu larger than 1500

CVE-2009-3547 kernel: fs: pipe.c NULL pointer dereference

Security fixes :

  - a system with SELinux enforced was more permissive in     allowing local users in the unconfined_t domain to map     low memory areas even if the mmap_min_addr restriction     was enabled. This could aid in the local exploitation of     NULL pointer dereference bugs. (CVE-2009-2695,     Important)

  - a NULL pointer dereference flaw was found in the     eCryptfs implementation in the Linux kernel. A local     attacker could use this flaw to cause a local denial of     service or escalate their privileges. (CVE-2009-2908,     Important)

  - a flaw was found in the NFSv4 implementation. The kernel     would do an unnecessary permission check after creating     a file. This check would usually fail and leave the file     with the permission bits set to random values. Note:
    This is a server-side only issue. (CVE-2009-3286,     Important)

  - a NULL pointer dereference flaw was found in each of the     following functions in the Linux kernel:
    pipe_read_open(), pipe_write_open(), and     pipe_rdwr_open(). When the mutex lock is not held, the     i_pipe pointer could be released by other processes     before it is used to update the pipe's reader and writer     counters. This could lead to a local denial of service     or privilege escalation. (CVE-2009-3547, Important)

  - a flaw was found in the Realtek r8169 Ethernet driver in     the Linux kernel. pci_unmap_single() presented a memory     leak that could lead to IOMMU space exhaustion and a     system crash. An attacker on the local network could     abuse this flaw by using jumbo frames for large amounts     of network traffic. (CVE-2009-3613, Important)

  - missing initialization flaws were found in the Linux     kernel. Padding data in several core network structures     was not initialized properly before being sent to     user-space. These flaws could lead to information leaks.
    (CVE-2009-3228, Moderate)

Bug fixes :

  - with network bonding in the 'balance-tlb' or     'balance-alb' mode, the primary setting for the primary     slave device was lost when said device was brought down.
    Bringing the slave back up did not restore the primary     setting. (BZ#517971)

  - some faulty serial device hardware caused systems     running the kernel-xen kernel to take a very long time     to boot. (BZ#524153)

  - a caching bug in nfs_readdir() may have caused NFS     clients to see duplicate files or not see all files in a     directory. (BZ#526960)

  - the RHSA-2009:1243 update removed the mpt_msi_enable     option, preventing certain scripts from running. This     update adds the option back. (BZ#526963)

  - an iptables rule with the recent module and a hit count     value greater than the ip_pkt_list_tot parameter (the     default is 20), did not have any effect over packets, as     the hit count could not be reached. (BZ#527434)

  - a check has been added to the IPv4 code to make sure     that rt is not NULL, to help prevent future bugs in     functions that call ip_append_data() from being     exploitable. (BZ#527436)

  - a kernel panic occurred in certain conditions after     reconfiguring a tape drive's block size. (BZ#528133)

  - when using the Linux Virtual Server (LVS) in a master     and backup configuration, and propagating active     connections on the master to the backup, the connection     timeout value on the backup was hard-coded to 180     seconds, meaning connection information on the backup     was soon lost. This could prevent the successful     failover of connections. The timeout value can now be     set via 'ipvsadm --set'. (BZ#528645)

  - a bug in nfs4_do_open_expired() could have caused the     reclaimer thread on an NFSv4 client to enter an infinite     loop. (BZ#529162)

  - MSI interrupts may not have been delivered for r8169     based network cards that have MSI interrupts enabled.
    This bug only affected certain systems. (BZ#529366)

The system must be rebooted for this update to take effect.

Note1: Due to the fuse kernel module now being part of the kernel, we are updating fuse on the older releases to match the fuse that was released by The Upstream Vendor.

Note2: kernel-module-openafs for SL 50-53 is for openafs 1.4.7, for SL 54 it is for openafs 1.4.11

Note3: xfs is now part of the kernel in x86_64. Because of this there is no kernel-module-xfs for x86_64.

Note4: ipw3945 support has been changed to iwlwifi3945 in SL 54, and is in the kernel. Because of this there is no kernel-module-ipw3945 for SL54.

Note5: Support for the Atheros chipset in now in the kernel. We are not sure if the infrastructure is in place for SL 50-53, so we are still providing the madwifi kernel modules for SL 50-53.

a. Service Console update for COS kernel

   Updated COS package 'kernel' addresses the security issues that are    fixed through versions 2.6.18-164.11.1.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2009-2695, CVE-2009-2908, CVE-2009-3228,    CVE-2009-3286, CVE-2009-3547, CVE-2009-3613 to the security issues    fixed in kernel 2.6.18-164.6.1

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2009-3612, CVE-2009-3620, CVE-2009-3621,    CVE-2009-3726 to the security issues fixed in kernel 2.6.18-164.9.1.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2007-4567, CVE-2009-4536, CVE-2009-4537,    CVE-2009-4538 to the security issues fixed in kernel 2.6.18-164.10.1

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2006-6304, CVE-2009-2910, CVE-2009-3080,    CVE-2009-3556, CVE-2009-3889, CVE-2009-3939, CVE-2009-4020,    CVE-2009-4021, CVE-2009-4138, CVE-2009-4141, and CVE-2009-4272 to    the security issues fixed in kernel 2.6.18-164.11.1.

b. ESXi userworld update for ntp

   The Network Time Protocol (NTP) is used to synchronize the time of    a computer client or server to another server or reference time    source.

   A vulnerability in ntpd could allow a remote attacker to cause a    denial of service (CPU and bandwidth consumption) by using    MODE_PRIVATE to send a spoofed (1) request or (2) response packet    that triggers a continuous exchange of MODE_PRIVATE error responses    between two NTP daemons.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2009-3563 to this issue.

c. Service Console package openssl updated to 0.9.8e-12.el5_4.1

   OpenSSL is a toolkit implementing SSL v2/v3 and TLS protocols with    full-strength cryptography world-wide.

   A memory leak in the zlib could allow a remote attacker to cause a    denial of service (memory consumption) via vectors that trigger    incorrect calls to the CRYPTO_cleanup_all_ex_data function.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2009-4355 to this issue.

   A vulnerability was discovered which may allow remote attackers to    spoof certificates by using MD2 design flaws to generate a hash    collision in less than brute-force time. NOTE: the scope of this    issue is currently limited because the amount of computation    required is still large.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2009-2409 to this issue.

   This update also includes security fixes that were first addressed    in version openssl-0.9.8e-12.el5.i386.rpm.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the names CVE-2009-0590, CVE-2009-1377, CVE-2009-1378,    CVE-2009-1379, CVE-2009-1386 and CVE-2009-1387 to these issues.

d. Service Console update for krb5 to 1.6.1-36.el5_4.1 and pam_krb5 to    2.2.14-15.

   Kerberos is a network authentication protocol. It is designed to    provide strong authentication for client/server applications by    using secret-key cryptography.

   Multiple integer underflows in the AES and RC4 functionality in the    crypto library could allow remote attackers to cause a denial of    service (daemon crash) or possibly execute arbitrary code by    providing ciphertext with a length that is too short to be valid.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2009-4212 to this issue.

   The service console package for pam_krb5 is updated to version    pam_krb5-2.2.14-15. This update fixes a flaw found in pam_krb5. In    some non-default configurations (specifically, where pam_krb5 would    be the first module to prompt for a password), a remote attacker    could use this flaw to recognize valid usernames, which would aid a    dictionary-based password guess attack.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2009-1384 to this issue.

e. Service Console package bind updated to 9.3.6-4.P1.el5_4.2

   BIND (Berkeley Internet Name Daemon) is by far the most widely used    Domain Name System (DNS) software on the Internet.

   A vulnerability was discovered which could allow remote attacker to    add the Authenticated Data (AD) flag to a forged NXDOMAIN response    for an existing domain.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2010-0097 to this issue.

   A vulnerability was discovered which could allow remote attackers    to conduct DNS cache poisoning attacks by receiving a recursive    client query and sending a response that contains CNAME or DNAME    records, which do not have the intended validation before caching.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2010-0290 to this issue.

   A vulnerability was found in the way that bind handles out-of-    bailiwick data accompanying a secure response without re-fetching    from the original source, which could allow remote attackers to    have an unspecified impact via a crafted response.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2010-0382 to this issue.

   NOTE: ESX does not use the BIND name service daemon by default.

f. Service Console package gcc updated to 3.2.3-60

   The GNU Compiler Collection includes front ends for C, C++,    Objective-C, Fortran, Java, and Ada, as well as libraries for these    languages

   GNU Libtool's ltdl.c attempts to open .la library files in the    current working directory.  This could allow a local user to gain    privileges via a Trojan horse file.  The GNU C Compiler collection    (gcc) provided in ESX contains a statically linked version of the    vulnerable code, and is being replaced.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2009-3736 to this issue.

g. Service Console package gzip update to 1.3.3-15.rhel3

   gzip is a software application used for file compression

   An integer underflow in gzip's unlzw function on 64-bit platforms    may allow a remote attacker to trigger an array index error    leading to a denial of service (application crash) or possibly    execute arbitrary code via a crafted LZW compressed file.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2010-0001 to this issue.

h. Service Console package sudo updated to 1.6.9p17-6.el5_4

   Sudo (su 'do') allows a system administrator to delegate authority    to give certain users (or groups of users) the ability to run some    (or all) commands as root or another user while providing an audit    trail of the commands and their arguments.

   When a pseudo-command is enabled, sudo permits a match between the    name of the pseudo-command and the name of an executable file in an    arbitrary directory, which allows local users to gain privileges    via a crafted executable file.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2010-0426 to this issue.

   When the runas_default option is used, sudo does not properly set    group memberships, which allows local users to gain privileges via    a sudo command.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2010-0427 to this issue.

a. vMA and Service Console update for newt to 0.52.2-12.el5_4.1

   Newt is a programming library for color text mode, widget based    user interfaces. Newt can be used to add stacked windows, entry    widgets, checkboxes, radio buttons, labels, plain text fields,    scrollbars, etc., to text mode user interfaces.

   A heap-based buffer overflow flaw was found in the way newt    processes content that is to be displayed in a text dialog box.
   A local attacker could issue a specially crafted text dialog box    display request (direct or via a custom application), leading to a    denial of service (application crash) or, potentially, arbitrary    code execution with the privileges of the user running the    application using the newt library.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2009-2905 to this issue.

b. vMA and Service Console update for vMA package nfs-utils to    1.0.9-42.el5

   The nfs-utils package provides a daemon for the kernel NFS server    and related tools.

   It was discovered that nfs-utils did not use tcp_wrappers    correctly.  Certain hosts access rules defined in '/etc/hosts.allow'    and '/etc/hosts.deny' may not have been honored, possibly allowing    remote attackers to bypass intended access restrictions.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2008-4552 to this issue.

c. vMA and Service Console package glib2 updated to 2.12.3-4.el5_3.1

   GLib is the low-level core library that forms the basis for    projects such as GTK+ and GNOME. It provides data structure    handling for C, portability wrappers, and interfaces for such    runtime functionality as an event loop, threads, dynamic loading,    and an object system.

   Multiple integer overflows in glib/gbase64.c in GLib before 2.20    allow context-dependent attackers to execute arbitrary code via a    long string that is converted either from or to a base64    representation.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2008-4316 to this issue.

d. vMA and Service Console update for openssl to 0.9.8e-12.el5

   SSL is a toolkit implementing SSL v2/v3 and TLS protocols with full-    strength cryptography world-wide.

   Multiple denial of service flaws were discovered in OpenSSL's DTLS    implementation. A remote attacker could use these flaws to cause a    DTLS server to use excessive amounts of memory, or crash on an    invalid memory access or NULL pointer dereference.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the names CVE-2009-1377, CVE-2009-1378,    CVE-2009-1379, CVE-2009-1386, CVE-2009-1387 to these issues.

   An input validation flaw was found in the handling of the BMPString    and UniversalString ASN1 string types in OpenSSL's    ASN1_STRING_print_ex() function. An attacker could use this flaw to    create a specially crafted X.509 certificate that could cause    applications using the affected function to crash when printing    certificate contents.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2009-0590 to this issue.

e. vMA and Service Console package bind updated to 9.3.6-4.P1.el5_4.1

   It was discovered that BIND was incorrectly caching responses    without performing proper DNSSEC validation, when those responses    were received during the resolution of a recursive client query    that requested DNSSEC records but indicated that checking should be    disabled. A remote attacker could use this flaw to bypass the DNSSEC    validation check and perform a cache poisoning attack if the target    BIND server was receiving such client queries.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2009-4022 to this issue.

f. vMA and Service Console package expat updated to 1.95.8-8.3.el5_4.2.

   Two buffer over-read flaws were found in the way Expat handled    malformed UTF-8 sequences when processing XML files. A specially-    crafted XML file could cause applications using Expat to fail while    parsing the file.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the names CVE-2009-3560 and CVE-2009-3720 to these    issues.

g. vMA and Service Console package openssh update to 4.3p2-36.el5_4.2

   A Red Hat specific patch used in the openssh packages as shipped in    Red Hat Enterprise Linux 5.4 (RHSA-2009:1287) loosened certain    ownership requirements for directories used as arguments for the    ChrootDirectory configuration options. A malicious user that also    has or previously had non-chroot shell access to a system could    possibly use this flaw to escalate their privileges and run    commands as any system user.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2009-2904 to this issue.

h. vMA and Service Console package ntp updated to    ntp-4.2.2p1-9.el5_4.1.i386.rpm

   A flaw was discovered in the way ntpd handled certain malformed NTP    packets. ntpd logged information about all such packets and replied    with an NTP packet that was treated as malformed when received by    another ntpd. A remote attacker could use this flaw to create an NTP    packet reply loop between two ntpd servers through a malformed packet    with a spoofed source IP address and port, causing ntpd on those    servers to use excessive amounts of CPU time and fill disk space with    log messages.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2009-3563 to this issue.   

i. vMA update for package kernel to 2.6.18-164.9.1.el5

   Updated vMA package kernel addresses the security issues listed    below.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the name CVE-2009-2849 to the security issue fixed in    kernel 2.6.18-128.2.1

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2009-2695, CVE-2009-2908, CVE-2009-3228,    CVE-2009-3286, CVE-2009-3547, CVE-2009-3613 to the security issues    fixed in kernel 2.6.18-128.6.1

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2009-3612, CVE-2009-3620, CVE-2009-3621,    CVE-2009-3726 to the security issues fixed in kernel    2.6.18-128.9.1

j. vMA 4.0 updates for the packages kpartx, libvolume-id,    device-mapper-multipath, fipscheck, dbus, dbus-libs, and ed

   kpartx updated to 0.4.7-23.el5_3.4, libvolume-id updated to    095-14.20.el5 device-mapper-multipath package updated to    0.4.7-23.el5_3.4, fipscheck updated to 1.0.3-1.el5, dbus    updated to 1.1.2-12.el5, dbus-libs updated to 1.1.2-12.el5,    and ed package updated to 0.2-39.el5_2.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the names CVE-2008-3916, CVE-2009-1189 and    CVE-2009-0115 to these issues.

Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service, sensitive memory leak or privilege escalation. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2009-2846     Michael Buesch noticed a typing issue in the eisa-eeprom     driver for the hppa architecture. Local users could     exploit this issue to gain access to restricted memory.

  - CVE-2009-2847     Ulrich Drepper noticed an issue in the do_sigalstack     routine on 64-bit systems. This issue allows local users     to gain access to potentially sensitive memory on the     kernel stack.

  - CVE-2009-2848     Eric Dumazet discovered an issue in the execve path,     where the clear_child_tid variable was not being     properly cleared. Local users could exploit this issue     to cause a denial of service (memory corruption).

  - CVE-2009-2849     Neil Brown discovered an issue in the sysfs interface to     md devices. When md arrays are not active, local users     can exploit this vulnerability to cause a denial of     service (oops).

  - CVE-2009-2903     Mark Smith discovered a memory leak in the appletalk     implementation. When the appletalk and ipddp modules are     loaded, but no ipddp'N' device is found, remote     attackers can cause a denial of service by consuming     large amounts of system memory.

  - CVE-2009-2908     Loic Minier discovered an issue in the eCryptfs     filesystem. A local user can cause a denial of service     (kernel oops) by causing a dentry value to go negative.

  - CVE-2009-2909     Arjan van de Ven discovered an issue in the AX.25     protocol implementation. A specially crafted call to     setsockopt() can result in a denial of service (kernel     oops).

  - CVE-2009-2910     Jan Beulich discovered the existence of a sensitive     kernel memory leak. Systems running the 'amd64' kernel     do not properly sanitize registers for 32-bit processes.

  - CVE-2009-3001     Jiri Slaby fixed a sensitive memory leak issue in the     ANSI/IEEE 802.2 LLC implementation. This is not     exploitable in the Debian lenny kernel as root     privileges are required to exploit this issue.

  - CVE-2009-3002     Eric Dumazet fixed several sensitive memory leaks in the     IrDA, X.25 PLP (Rose), NET/ROM, Acorn Econet/AUN, and     Controller Area Network (CAN) implementations. Local     users can exploit these issues to gain access to kernel     memory.

  - CVE-2009-3228     Eric Dumazet reported an instance of uninitialized     kernel memory in the network packet scheduler. Local     users may be able to exploit this issue to read the     contents of sensitive kernel memory.

  - CVE-2009-3238     Linus Torvalds provided a change to the get_random_int()     function to increase its randomness.

  - CVE-2009-3286     Eric Paris discovered an issue with the NFSv4 server     implementation. When an O_EXCL create fails, files may     be left with corrupted permissions, possibly granting     unintentional privileges to other local users.

  - CVE-2009-3547     Earl Chew discovered a NULL pointer dereference issue in     the pipe_rdwr_open function which can be used by local     users to gain elevated privileges.

  - CVE-2009-3612     Jiri Pirko discovered a typo in the initialization of a     structure in the netlink subsystem that may allow local     users to gain access to sensitive kernel memory.

  - CVE-2009-3613     Alistair Strachan reported an issue in the r8169 driver.
    Remote users can cause a denial of service (IOMMU space     exhaustion and system crash) by transmitting a large     amount of jumbo frames.

  - CVE-2009-3620     Ben Hutchings discovered an issue in the DRM manager for     ATI Rage 128 graphics adapters. Local users may be able     to exploit this vulnerability to cause a denial of     service (NULL pointer dereference).

  - CVE-2009-3621     Tomoki Sekiyama discovered a deadlock condition in the     UNIX domain socket implementation. Local users can     exploit this vulnerability to cause a denial of service     (system hang).

Notice: Debian 5.0.4, the next point release of Debian 'lenny', will include a new default value for the mmap_min_addr tunable. This change will add an additional safeguard against a class of security vulnerabilities known as 'NULL pointer dereference' vulnerabilities, but it will need to be overridden when using certain applications.
Additional information about this change, including instructions for making this change locally in advance of 5.0.4 (recommended), can be found at: https://wiki.debian.org/mmap_min_addr.

Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service, sensitive memory leak or privilege escalation. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2009-2695     Eric Paris provided several fixes to increase the     protection provided by the mmap_min_addr tunable against     NULL pointer dereference vulnerabilities.

  - CVE-2009-2903     Mark Smith discovered a memory leak in the appletalk     implementation. When the appletalk and ipddp modules are     loaded, but no ipddp'N' device is found, remote     attackers can cause a denial of service by consuming     large amounts of system memory.

  - CVE-2009-2908     Loic Minier discovered an issue in the eCryptfs     filesystem. A local user can cause a denial of service     (kernel oops) by causing a dentry value to go negative.

  - CVE-2009-2909     Arjan van de Ven discovered an issue in the AX.25     protocol implementation. A specially crafted call to     setsockopt() can result in a denial of service (kernel     oops).

  - CVE-2009-2910     Jan Beulich discovered the existence of a sensitive     kernel memory leak. Systems running the 'amd64' kernel     do not properly sanitize registers for 32-bit processes.

  - CVE-2009-3001     Jiri Slaby fixed a sensitive memory leak issue in the     ANSI/IEEE 802.2 LLC implementation. This is not     exploitable in the Debian lenny kernel as root     privileges are required to exploit this issue.

  - CVE-2009-3002     Eric Dumazet fixed several sensitive memory leaks in the     IrDA, X.25 PLP (Rose), NET/ROM, Acorn Econet/AUN, and     Controller Area Network (CAN) implementations. Local     users can exploit these issues to gain access to kernel     memory.

  - CVE-2009-3286     Eric Paris discovered an issue with the NFSv4 server     implementation. When an O_EXCL create fails, files may     be left with corrupted permissions, possibly granting     unintentional privileges to other local users.

  - CVE-2009-3290     Jan Kiszka noticed that the kvm_emulate_hypercall     function in KVM does not prevent access to MMU     hypercalls from ring 0, which allows local guest OS     users to cause a denial of service (guest kernel crash)     and read or write guest kernel memory.

  - CVE-2009-3613     Alistair Strachan reported an issue in the r8169 driver.
    Remote users can cause a denial of service (IOMMU space     exhaustion and system crash) by transmitting a large     amount of jumbo frames.

Some vulnerabilities were discovered and corrected in the Linux 2.6 kernel :

The personality subsystem in the Linux kernel before 2.6.31-rc3 has a PER_CLEAR_ON_SETID setting that does not clear the ADDR_COMPAT_LAYOUT and MMAP_PAGE_ZERO flags when executing a setuid or setgid program, which makes it easier for local users to leverage the details of memory usage to (1) conduct NULL pointer dereference attacks, (2) bypass the mmap_min_addr protection mechanism, or (3) defeat address space layout randomization (ASLR). (CVE-2009-1895)

Stack-based buffer overflow in the parse_tag_11_packet function in fs/ecryptfs/keystore.c in the eCryptfs subsystem in the Linux kernel before 2.6.30.4 allows local users to cause a denial of service (system crash) or possibly gain privileges via vectors involving a crafted eCryptfs file, related to not ensuring that the key signature length in a Tag 11 packet is compatible with the key signature buffer size. (CVE-2009-2406)

Heap-based buffer overflow in the parse_tag_3_packet function in fs/ecryptfs/keystore.c in the eCryptfs subsystem in the Linux kernel before 2.6.30.4 allows local users to cause a denial of service (system crash) or possibly gain privileges via vectors involving a crafted eCryptfs file, related to a large encrypted key size in a Tag 3 packet. (CVE-2009-2407)

The d_delete function in fs/ecryptfs/inode.c in eCryptfs in the Linux kernel 2.6.31 allows local users to cause a denial of service (kernel OOPS) and possibly execute arbitrary code via unspecified vectors that cause a negative dentry and trigger a NULL pointer dereference, as demonstrated via a Mutt temporary directory in an eCryptfs mount.
(CVE-2009-2908)

The kvm_emulate_hypercall function in arch/x86/kvm/x86.c in KVM in the Linux kernel 2.6.25-rc1, and other versions before 2.6.31, when running on x86 systems, does not prevent access to MMU hypercalls from ring 0, which allows local guest OS users to cause a denial of service (guest kernel crash) and read or write guest kernel memory via unspecified random addresses. (CVE-2009-3290)

Additionaly, it includes the fixes from the stable kernel version 2.6.27.37. It also fixes also fixes IBM x3650 M2 hanging when using both network interfaces and Wake on Lan problems on r8169. For details, check the package changelog.

To update your kernel, please follow the directions located at :

http://www.mandriva.com/en/security/kernelupdate

Update to kernel 2.6.30.9. Upstream change logs:
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.9 Also fixes :

  - Kernel stack randomization bug - NULL dereference in     r128 driver - ftrace memory corruption on module unload
    - boot hanging on some systems - some latency problems     caused by scheduler bugs

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solar Designer discovered that the z90crypt driver did not correctly check capabilities. A local attacker could exploit this to shut down the device, leading to a denial of service. Only affected Ubuntu 6.06.
(CVE-2009-1883)

Michael Buesch discovered that the SGI GRU driver did not correctly check the length when setting options. A local attacker could exploit this to write to the kernel stack, leading to root privilege escalation or a denial of service. Only affected Ubuntu 8.10 and 9.04.
(CVE-2009-2584)

It was discovered that SELinux did not fully implement the mmap_min_addr restrictions. A local attacker could exploit this to allocate the NULL memory page which could lead to further attacks against kernel NULL-dereference vulnerabilities. Ubuntu 6.06 was not affected. (CVE-2009-2695)

Cagri Coltekin discovered that the UDP stack did not correctly handle certain flags. A local user could send specially crafted commands and traffic to gain root privileges or crash the systeam, leading to a denial of service. Only affected Ubuntu 6.06. (CVE-2009-2698)

Hiroshi Shimamoto discovered that monotonic timers did not correctly validate parameters. A local user could make a specially crafted timer request to gain root privileges or crash the system, leading to a denial of service. Only affected Ubuntu 9.04. (CVE-2009-2767)

Michael Buesch discovered that the HPPA ISA EEPROM driver did not correctly validate positions. A local user could make a specially crafted request to gain root privileges or crash the system, leading to a denial of service. (CVE-2009-2846)

Ulrich Drepper discovered that kernel signal stacks were not being correctly padded on 64-bit systems. A local attacker could send specially crafted calls to expose 4 bytes of kernel stack memory, leading to a loss of privacy. (CVE-2009-2847)

Jens Rosenboom discovered that the clone method did not correctly clear certain fields. A local attacker could exploit this to gain privileges or crash the system, leading to a denial of service.
(CVE-2009-2848)

It was discovered that the MD driver did not check certain sysfs files. A local attacker with write access to /sys could exploit this to cause a system crash, leading to a denial of service. Ubuntu 6.06 was not affected. (CVE-2009-2849)

Mark Smith discovered that the AppleTalk stack did not correctly manage memory. A remote attacker could send specially crafted traffic to cause the system to consume all available memory, leading to a denial of service. (CVE-2009-2903)

Loic Minier discovered that eCryptfs did not correctly handle writing to certain deleted files. A local attacker could exploit this to gain root privileges or crash the system, leading to a denial of service.
Ubuntu 6.06 was not affected. (CVE-2009-2908)

It was discovered that the LLC, AppleTalk, IR, EConet, Netrom, and ROSE network stacks did not correctly initialize their data structures. A local attacker could make specially crafted calls to read kernel memory, leading to a loss of privacy. (CVE-2009-3001, CVE-2009-3002)

It was discovered that the randomization used for Address Space Layout Randomization was predictable within a small window of time. A local attacker could exploit this to leverage further attacks that require knowledge of userspace memory layouts. (CVE-2009-3238)

Eric Paris discovered that NFSv4 did not correctly handle file creation failures. An attacker with write access to an NFSv4 share could exploit this to create files with arbitrary mode bits, leading to privilege escalation or a loss of privacy. (CVE-2009-3286)

Bob Tracy discovered that the SCSI generic driver did not correctly use the right index for array access. A local attacker with write access to a CDR could exploit this to crash the system, leading to a denial of service. Only Ubuntu 9.04 was affected. (CVE-2009-3288)

Jan Kiszka discovered that KVM did not correctly validate certain hypercalls. A local unprivileged attacker in a virtual guest could exploit this to crash the guest kernel, leading to a denial of service. Ubuntu 6.06 was not affected. (CVE-2009-3290).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Update to kernel 2.6.27.37:
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.36 http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.37

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
89740	VMware ESX / ESXi Third-Party Libraries and Components (VMSA-2010-0009) (remote check)	Nessus	VMware ESX Local Security Checks	critical
89737	VMware ESX Third-Party Libraries Multiple Vulnerabilities (VMSA-2010-0004) (remote check)	Nessus	VMware ESX Local Security Checks	high
79507	OracleVM 2.2 : kernel (OVMSA-2013-0039)	Nessus	OracleVM Local Security Checks	high
67953	Oracle Linux 5 : kernel (ELSA-2009-1548)	Nessus	Oracle Linux Local Security Checks	high
67068	CentOS 5 : kernel (CESA-2009:1548)	Nessus	CentOS Local Security Checks	high
65044	Scientific Linux Security Update : kernel on SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	high
46765	VMSA-2010-0009 : ESXi ntp and ESX Service Console third-party updates	Nessus	VMware ESX Local Security Checks	high
44993	VMSA-2010-0004 : ESX Service Console and vMA third-party updates	Nessus	VMware ESX Local Security Checks	high
44793	Debian DSA-1928-1 : linux-2.6.24 - privilege escalation/denial of service/sensitive memory leak	Nessus	Debian Local Security Checks	high
44780	Debian DSA-1915-1 : linux-2.6 - privilege escalation/denial of service/sensitive memory leak	Nessus	Debian Local Security Checks	high
42358	RHEL 5 : kernel (RHSA-2009:1548)	Nessus	Red Hat Local Security Checks	high
42284	Mandriva Linux Security Advisory : kernel (MDVSA-2009:289)	Nessus	Mandriva Local Security Checks	high
42271	Fedora 11 : kernel-2.6.30.9-90.fc11 (2009-10639)	Nessus	Fedora Local Security Checks	high
42209	Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 : linux, linux-source-2.6.15 vulnerabilities (USN-852-1)	Nessus	Ubuntu Local Security Checks	high
42156	Fedora 10 : kernel-2.6.27.37-170.2.104.fc10 (2009-10525)	Nessus	Fedora Local Security Checks	medium

Detections

Analytics

CVE-2009-2908

high

Tenable Plugins

critical

high

high

high

high

high

high

high

high

high

high

high

high

high

medium