Several local and remote vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or the execution of arbitrary code. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2004-0427     A local denial of service vulnerability in do_fork() has     been found.

  - CVE-2005-0489     A local denial of service vulnerability in proc memory     handling has been found.

  - CVE-2004-0394     A buffer overflow in the panic handling code has been     found.

  - CVE-2004-0447     A local denial of service vulnerability through a NULL     pointer dereference in the IA64 process handling code     has been found.

  - CVE-2004-0554     A local denial of service vulnerability through an     infinite loop in the signal handler code has been found.

  - CVE-2004-0565     An information leak in the context switch code has been     found on the IA64 architecture.

  - CVE-2004-0685     Unsafe use of copy_to_user in USB drivers may disclose     sensitive information.

  - CVE-2005-0001     A race condition in the i386 page fault handler may     allow privilege escalation.

  - CVE-2004-0883     Multiple vulnerabilities in the SMB filesystem code may     allow denial of service or information disclosure.

  - CVE-2004-0949     An information leak discovered in the SMB filesystem     code.

  - CVE-2004-1016     A local denial of service vulnerability has been found     in the SCM layer.

  - CVE-2004-1333     An integer overflow in the terminal code may allow a     local denial of service vulnerability.

  - CVE-2004-0997     A local privilege escalation in the MIPS assembly code     has been found.

  - CVE-2004-1335     A memory leak in the ip_options_get() function may lead     to denial of service.

  - CVE-2004-1017     Multiple overflows exist in the io_edgeport driver which     might be usable as a denial of service attack vector.

  - CVE-2005-0124     Bryan Fulton reported a bounds checking bug in the     coda_pioctl function which may allow local users to     execute arbitrary code or trigger a denial of service     attack.

  - CVE-2003-0984     Inproper initialization of the RTC may disclose     information.

  - CVE-2004-1070     Insufficient input sanitising in the load_elf_binary()     function may lead to privilege escalation.

  - CVE-2004-1071     Incorrect error handling in the binfmt_elf loader may     lead to privilege escalation.

  - CVE-2004-1072     A buffer overflow in the binfmt_elf loader may lead to     privilege escalation or denial of service.

  - CVE-2004-1073     The open_exec function may disclose information.

  - CVE-2004-1074     The binfmt code is vulnerable to denial of service     through malformed a.out binaries.

  - CVE-2004-0138     A denial of service vulnerability in the ELF loader has     been found.

  - CVE-2004-1068     A programming error in the unix_dgram_recvmsg() function     may lead to privilege escalation.

  - CVE-2004-1234     The ELF loader is vulnerable to denial of service     through malformed binaries.

  - CVE-2005-0003     Crafted ELF binaries may lead to privilege escalation,     due to insufficient checking of overlapping memory     regions.

  - CVE-2004-1235     A race condition in the load_elf_library() and     binfmt_aout() functions may allow privilege escalation.

  - CVE-2005-0504     An integer overflow in the Moxa driver may lead to     privilege escalation.

  - CVE-2005-0384     A remote denial of service vulnerability has been found     in the PPP driver.

  - CVE-2005-0135     An IA64 specific local denial of service vulnerability     has been found in the unw_unwind_to_user() function.

The following matrix explains which kernel version for which architecture fixes the problems mentioned above :

                                   Debian 3.0 (woody)                 Source                           2.4.18-14.4                        Alpha architecture               2.4.18-15woody1                    Intel IA-32 architecture         2.4.18-13.2                        HP Precision architecture        62.4                               PowerPC architecture             2.4.18-1woody6                     PowerPC architecture/XFS         20020329woody1                     PowerPC architecture/benh        20020304woody1                     Sun Sparc architecture           22woody1

Several local and remote vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or the execution of arbitrary code. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2004-0427     A local denial of service vulnerability in do_fork() has     been found.

  - CVE-2005-0489     A local denial of service vulnerability in proc memory     handling has been found.

  - CVE-2004-0394     A buffer overflow in the panic handling code has been     found.

  - CVE-2004-0447     A local denial of service vulnerability through a NULL     pointer dereference in the IA64 process handling code     has been found.

  - CVE-2004-0554     A local denial of service vulnerability through an     infinite loop in the signal handler code has been found.

  - CVE-2004-0565     An information leak in the context switch code has been     found on the IA64 architecture.

  - CVE-2004-0685     Unsafe use of copy_to_user in USB drivers may disclose     sensitive information.

  - CVE-2005-0001     A race condition in the i386 page fault handler may     allow privilege escalation.

  - CVE-2004-0883     Multiple vulnerabilities in the SMB filesystem code may     allow denial of service or information disclosure.

  - CVE-2004-0949     An information leak discovered in the SMB filesystem     code.

  - CVE-2004-1016     A local denial of service vulnerability has been found     in the SCM layer.

  - CVE-2004-1333     An integer overflow in the terminal code may allow a     local denial of service vulnerability.

  - CVE-2004-0997     A local privilege escalation in the MIPS assembly code     has been found.

  - CVE-2004-1335     A memory leak in the ip_options_get() function may lead     to denial of service.

  - CVE-2004-1017     Multiple overflows exist in the io_edgeport driver which     might be usable as a denial of service attack vector.

  - CVE-2005-0124     Bryan Fulton reported a bounds checking bug in the     coda_pioctl function which may allow local users to     execute arbitrary code or trigger a denial of service     attack.

  - CVE-2003-0984     Inproper initialization of the RTC may disclose     information.

  - CVE-2004-1070     Insufficient input sanitising in the load_elf_binary()     function may lead to privilege escalation.

  - CVE-2004-1071     Incorrect error handling in the binfmt_elf loader may     lead to privilege escalation.

  - CVE-2004-1072     A buffer overflow in the binfmt_elf loader may lead to     privilege escalation or denial of service.

  - CVE-2004-1073     The open_exec function may disclose information.

  - CVE-2004-1074     The binfmt code is vulnerable to denial of service     through malformed a.out binaries.

  - CVE-2004-0138     A denial of service vulnerability in the ELF loader has     been found.

  - CVE-2004-1068     A programming error in the unix_dgram_recvmsg() function     may lead to privilege escalation.

  - CVE-2004-1234     The ELF loader is vulnerable to denial of service     through malformed binaries.

  - CVE-2005-0003     Crafted ELF binaries may lead to privilege escalation,     due to insufficient checking of overlapping memory     regions.

  - CVE-2004-1235     A race condition in the load_elf_library() and     binfmt_aout() functions may allow privilege escalation.

  - CVE-2005-0504     An integer overflow in the Moxa driver may lead to     privilege escalation.

  - CVE-2005-0384     A remote denial of service vulnerability has been found     in the PPP driver.

  - CVE-2005-0135     An IA64 specific local denial of service vulnerability     has been found in the unw_unwind_to_user() function.

The following matrix explains which kernel version for which architecture fixes the problems mentioned above :

                                   Debian 3.0 (woody)                 Source                           2.4.19-4                           Sun Sparc architecture           26woody1                           Little endian MIPS architecture  0.020911.1.woody5

Updated kernel packages that fix several security issues in Red Hat Enterprise Linux 3 are now available.

The Linux kernel handles the basic functions of the operating system.

This advisory includes fixes for several security issues :

Petr Vandrovec discovered a flaw in the 32bit emulation code affecting the Linux 2.4 kernel on the AMD64 architecture. A local attacker could use this flaw to gain privileges. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-1144 to this issue.

ISEC security research discovered multiple vulnerabilities in the IGMP functionality which was backported in the Red Hat Enterprise Linux 3 kernels. These flaws could allow a local user to cause a denial of service (crash) or potentially gain privileges. Where multicast applications are being used on a system, these flaws may also allow remote users to cause a denial of service. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-1137 to this issue.

ISEC security research and Georgi Guninski independently discovered a flaw in the scm_send function in the auxiliary message layer. A local user could create a carefully crafted auxiliary message which could cause a denial of service (system hang). The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-1016 to this issue.

A floating point information leak was discovered in the ia64 architecture context switch code. A local user could use this flaw to read register values of other processes by setting the MFH bit. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-0565 to this issue.

Kirill Korotaev found a flaw in load_elf_binary affecting kernels prior to 2.4.26. A local user could create a carefully crafted binary in such a way that it would cause a denial of service (system crash).
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-1234 to this issue.

These packages also fix issues in the io_edgeport driver, and a memory leak in ip_options_get.

Note: The kernel-unsupported package contains various drivers and modules that are unsupported and therefore might contain security problems that have not been addressed.

All Red Hat Enterprise Linux 3 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum.

Several local and remote vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or the execution of arbitrary code. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2004-0427     A local denial of service vulnerability in do_fork() has     been found.

  - CVE-2005-0489     A local denial of service vulnerability in proc memory     handling has been found.

  - CVE-2004-0394     A buffer overflow in the panic handling code has been     found.

  - CVE-2004-0447     A local denial of service vulnerability through a NULL     pointer dereference in the IA64 process handling code     has been found.

  - CVE-2004-0554     A local denial of service vulnerability through an     infinite loop in the signal handler code has been found.

  - CVE-2004-0565     An information leak in the context switch code has been     found on the IA64 architecture.

  - CVE-2004-0685     Unsafe use of copy_to_user in USB drivers may disclose     sensitive information.

  - CVE-2005-0001     A race condition in the i386 page fault handler may     allow privilege escalation.

  - CVE-2004-0883     Multiple vulnerabilities in the SMB filesystem code may     allow denial of service or information disclosure.

  - CVE-2004-0949     An information leak discovered in the SMB filesystem     code.

  - CVE-2004-1016     A local denial of service vulnerability has been found     in the SCM layer.

  - CVE-2004-1333     An integer overflow in the terminal code may allow a     local denial of service vulnerability.

  - CVE-2004-0997     A local privilege escalation in the MIPS assembly code     has been found.

  - CVE-2004-1335     A memory leak in the ip_options_get() function may lead     to denial of service.

  - CVE-2004-1017     Multiple overflows exist in the io_edgeport driver which     might be usable as a denial of service attack vector.

  - CVE-2005-0124     Bryan Fulton reported a bounds checking bug in the     coda_pioctl function which may allow local users to     execute arbitrary code or trigger a denial of service     attack.

  - CVE-2003-0984     Inproper initialization of the RTC may disclose     information.

  - CVE-2004-1070     Insufficient input sanitising in the load_elf_binary()     function may lead to privilege escalation.

  - CVE-2004-1071     Incorrect error handling in the binfmt_elf loader may     lead to privilege escalation.

  - CVE-2004-1072     A buffer overflow in the binfmt_elf loader may lead to     privilege escalation or denial of service.

  - CVE-2004-1073     The open_exec function may disclose information.

  - CVE-2004-1074     The binfmt code is vulnerable to denial of service     through malformed a.out binaries.

  - CVE-2004-0138     A denial of service vulnerability in the ELF loader has     been found.

  - CVE-2004-1068     A programming error in the unix_dgram_recvmsg() function     may lead to privilege escalation.

  - CVE-2004-1234     The ELF loader is vulnerable to denial of service     through malformed binaries.

  - CVE-2005-0003     Crafted ELF binaries may lead to privilege escalation,     due to insufficient checking of overlapping memory     regions.

  - CVE-2004-1235     A race condition in the load_elf_library() and     binfmt_aout() functions may allow privilege escalation.

  - CVE-2005-0504     An integer overflow in the Moxa driver may lead to     privilege escalation.

  - CVE-2005-0384     A remote denial of service vulnerability has been found     in the PPP driver.

  - CVE-2005-0135     An IA64 specific local denial of service vulnerability     has been found in the unw_unwind_to_user() function.

The following matrix explains which kernel version for which architecture fixes the problems mentioned above :

                               Debian 3.0 (woody)             Source                       2.4.16-1woody2                 arm/lart                     20040419woody1                 arm/netwinder                20040419woody1                 arm/riscpc                   20040419woody1

Updated kernel packages that fix several security issues in Red Hat Enterprise Linux 2.1 are now available.

The Linux kernel handles the basic functions of the operating system.

This advisory includes fixes for the following security issues :

iSEC Security Research discovered a VMA handling flaw in the uselib(2) system call of the Linux kernel. A local user could make use of this flaw to gain elevated (root) privileges. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-1235 to this issue.

iSEC Security Research discovered a flaw in the page fault handler code that could lead to local users gaining elevated (root) privileges on multiprocessor machines. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0001 to this issue.

iSEC Security Research and Georgi Guninski independently discovered a flaw in the scm_send function in the auxiliary message layer. A local user could create a carefully crafted auxiliary message which could cause a denial of service (system hang). The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-1016 to this issue.

Kirill Korotaev found a flaw in load_elf_binary affecting kernels prior to 2.4.26. A local user could create a carefully crafted binary in such a way that it would cause a denial of service (system crash).
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-1234 to this issue.

These packages also fix issues in the io_edgeport driver (CVE-2004-1017), a memory leak in ip_options_get (CVE-2004-1335), and missing VM_IO flags in some drivers (CVE-2004-1057).

A recent Internet Draft by Fernando Gont recommended that ICMP Source Quench messages be ignored by hosts. A patch to ignore these messages is included.

All Red Hat Enterprise Linux 2.1 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum.

Several local and remote vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or the execution of arbitrary code. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2004-0427     A local denial of service vulnerability in do_fork() has     been found.

  - CVE-2005-0489     A local denial of service vulnerability in proc memory     handling has been found.

  - CVE-2004-0394     A buffer overflow in the panic handling code has been     found.

  - CVE-2004-0447     A local denial of service vulnerability through a NULL     pointer dereference in the IA64 process handling code     has been found.

  - CVE-2004-0554     A local denial of service vulnerability through an     infinite loop in the signal handler code has been found.

  - CVE-2004-0565     An information leak in the context switch code has been     found on the IA64 architecture.

  - CVE-2004-0685     Unsafe use of copy_to_user in USB drivers may disclose     sensitive information.

  - CVE-2005-0001     A race condition in the i386 page fault handler may     allow privilege escalation.

  - CVE-2004-0883     Multiple vulnerabilities in the SMB filesystem code may     allow denial of service or information disclosure.

  - CVE-2004-0949     An information leak discovered in the SMB filesystem     code.

  - CVE-2004-1016     A local denial of service vulnerability has been found     in the SCM layer.

  - CVE-2004-1333     An integer overflow in the terminal code may allow a     local denial of service vulnerability.

  - CVE-2004-0997     A local privilege escalation in the MIPS assembly code     has been found.

  - CVE-2004-1335     A memory leak in the ip_options_get() function may lead     to denial of service.

  - CVE-2004-1017     Multiple overflows exist in the io_edgeport driver which     might be usable as a denial of service attack vector.

  - CVE-2005-0124     Bryan Fulton reported a bounds checking bug in the     coda_pioctl function which may allow local users to     execute arbitrary code or trigger a denial of service     attack.

  - CVE-2003-0984     Inproper initialization of the RTC may disclose     information.

  - CVE-2004-1070     Insufficient input sanitising in the load_elf_binary()     function may lead to privilege escalation.

  - CVE-2004-1071     Incorrect error handling in the binfmt_elf loader may     lead to privilege escalation.

  - CVE-2004-1072     A buffer overflow in the binfmt_elf loader may lead to     privilege escalation or denial of service.

  - CVE-2004-1073     The open_exec function may disclose information.

  - CVE-2004-1074     The binfmt code is vulnerable to denial of service     through malformed a.out binaries.

  - CVE-2004-0138     A denial of service vulnerability in the ELF loader has     been found.

  - CVE-2004-1068     A programming error in the unix_dgram_recvmsg() function     may lead to privilege escalation.

  - CVE-2004-1234     The ELF loader is vulnerable to denial of service     through malformed binaries.

  - CVE-2005-0003     Crafted ELF binaries may lead to privilege escalation,     due to insufficient checking of overlapping memory     regions.

  - CVE-2004-1235     A race condition in the load_elf_library() and     binfmt_aout() functions may allow privilege escalation.

  - CVE-2005-0504     An integer overflow in the Moxa driver may lead to     privilege escalation.

  - CVE-2005-0384     A remote denial of service vulnerability has been found     in the PPP driver.

  - CVE-2005-0135     An IA64 specific local denial of service vulnerability     has been found in the unw_unwind_to_user() function.

The following matrix explains which kernel version for which architecture fixes the problems mentioned above :

                                Debian 3.1 (sarge)              Source                        2.4.17-1woody4                  HP Precision architecture     32.5                            Intel IA-64 architecture      011226.18                       IBM S/390 architecture/image  2.4.17-2.woody.5                IBM S/390 architecture/patch  0.0.20020816-0.woody.4          PowerPC architecture (apus)   2.4.17-6                        MIPS architecture             2.4.17-0.020226.2.woody7

Updated kernel packages that fix several security issues in Red Hat
Enterprise Linux 3 are now available.

The Linux kernel handles the basic functions of the operating system.

This advisory includes fixes for several security issues :

Petr Vandrovec discovered a flaw in the 32bit emulation code affecting
the Linux 2.4 kernel on the AMD64 architecture. A local attacker could
use this flaw to gain privileges. The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the name CVE-2004-1144
to this issue.

ISEC security research discovered multiple vulnerabilities in the IGMP
functionality which was backported in the Red Hat Enterprise Linux 3
kernels. These flaws could allow a local user to cause a denial of
service (crash) or potentially gain privileges. Where multicast
applications are being used on a system, these flaws may also allow
remote users to cause a denial of service. The Common Vulnerabilities
and Exposures project (cve.mitre.org) has assigned the name
CVE-2004-1137 to this issue.

ISEC security research and Georgi Guninski independantly discovered a
flaw in the scm_send function in the auxiliary message layer. A local
user could create a carefully crafted auxiliary message which could
cause a denial of service (system hang). The Common Vulnerabilities
and Exposures project (cve.mitre.org) has assigned the name
CVE-2004-1016 to this issue.

A floating point information leak was discovered in the ia64
architecture context switch code. A local user could use this flaw to
read register values of other processes by setting the MFH bit. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CVE-2004-0565 to this issue.

Kirill Korotaev found a flaw in load_elf_binary affecting kernels
prior to 2.4.26. A local user could create a carefully crafted binary
in such a way that it would cause a denial of service (system crash).
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CVE-2004-1234 to this issue.

These packages also fix issues in the io_edgeport driver, and a memory
leak in ip_options_get.

Note: The kernel-unsupported package contains various drivers and
modules that are unsupported and therefore might contain security
problems that have not been addressed.

All Red Hat Enterprise Linux 3 users are advised to upgrade their
kernels to the packages associated with their machine architectures
and configurations as listed in this erratum.

Updated kernel packages that fix several security issues in Red Hat
Enterprise Linux 2.1 are now available.

The Linux kernel handles the basic functions of the operating system.

This advisory includes fixes for the following security issues :

iSEC Security Research discovered a VMA handling flaw in the uselib(2)
system call of the Linux kernel. A local user could make use of this
flaw to gain elevated (root) privileges. The Common Vulnerabilities
and Exposures project (cve.mitre.org) has assigned the name
CVE-2004-1235 to this issue.

iSEC Security Research discovered a flaw in the page fault handler
code that could lead to local users gaining elevated (root) privileges
on multiprocessor machines. The Common Vulnerabilities and Exposures
project (cve.mitre.org) has assigned the name CVE-2005-0001 to this
issue.

iSEC Security Research and Georgi Guninski independently discovered a
flaw in the scm_send function in the auxiliary message layer. A local
user could create a carefully crafted auxiliary message which could
cause a denial of service (system hang). The Common Vulnerabilities
and Exposures project (cve.mitre.org) has assigned the name
CVE-2004-1016 to this issue.

Kirill Korotaev found a flaw in load_elf_binary affecting kernels
prior to 2.4.26. A local user could create a carefully crafted binary
in such a way that it would cause a denial of service (system crash).
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CVE-2004-1234 to this issue.

These packages also fix issues in the io_edgeport driver
(CVE-2004-1017), a memory leak in ip_options_get (CVE-2004-1335), and
missing VM_IO flags in some drivers (CVE-2004-1057).

A recent Internet Draft by Fernando Gont recommended that ICMP Source
Quench messages be ignored by hosts. A patch to ignore these messages
is included.

All Red Hat Enterprise Linux 2.1 users are advised to upgrade their
kernels to the packages associated with their machine architectures
and configurations as listed in this erratum.

ID	Name	Product	Family	Published	Updated	Severity
22611	Debian DSA-1069-1 : kernel-source-2.4.18 - several vulnerabilities	Nessus	Debian Local Security Checks	10/14/2006	1/4/2021	critical
22612	Debian DSA-1070-1 : kernel-source-2.4.19 - several vulnerabilities	Nessus	Debian Local Security Checks	10/14/2006	1/4/2021	critical
16054	RHEL 3 : kernel (RHSA-2004:689)	Nessus	Red Hat Local Security Checks	12/27/2004	1/14/2021	critical
22609	Debian DSA-1067-1 : kernel-source-2.4.16 - several vulnerabilities	Nessus	Debian Local Security Checks	10/14/2006	1/4/2021	critical
16244	RHEL 2.1 : kernel (RHSA-2005:016)	Nessus	Red Hat Local Security Checks	1/25/2005	1/14/2021	critical
22624	Debian DSA-1082-1 : kernel-source-2.4.17 - several vulnerabilities	Nessus	Debian Local Security Checks	10/14/2006	1/4/2021	critical
801602	Red Hat 2004-689 Security Check	Log Correlation Engine	Generic			high
801603	Red Hat 2005-016 Security Check	Log Correlation Engine	Generic			high

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