The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2011:1350 advisory.

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

    This update fixes the following security issues:

    * Flaws in the AGPGART driver implementation when handling certain IOCTL     commands could allow a local user to cause a denial of service or escalate     their privileges. (CVE-2011-1745, CVE-2011-2022, Important)

    * An integer overflow flaw in agp_allocate_memory() could allow a local     user to cause a denial of service or escalate their privileges.
    (CVE-2011-1746, Important)

    * A race condition flaw was found in the Linux kernel's eCryptfs     implementation. A local attacker could use the mount.ecryptfs_private     utility to mount (and then access) a directory they would otherwise not     have access to. Note: To correct this issue, the RHSA-2011:1241     ecryptfs-utils update, which provides the user-space part of the fix, must     also be installed. (CVE-2011-1833, Moderate)

    * A denial of service flaw was found in the way the taskstats subsystem     handled the registration of process exit handlers. A local, unprivileged     user could register an unlimited amount of these handlers, leading to     excessive CPU time and memory use. (CVE-2011-2484, Moderate)

    * A flaw was found in the way mapping expansions were handled. A local,     unprivileged user could use this flaw to cause a wrapping condition,     triggering a denial of service. (CVE-2011-2496, Moderate)

    * A flaw was found in the Linux kernel's Performance Events implementation.
    It could falsely lead the NMI (Non-Maskable Interrupt) Watchdog to detect a     lockup and panic the system. A local, unprivileged user could use this flaw     to cause a denial of service (kernel panic) using the perf tool.
    (CVE-2011-2521, Moderate)

    * A flaw in skb_gro_header_slow() in the Linux kernel could lead to GRO     (Generic Receive Offload) fields being left in an inconsistent state. An     attacker on the local network could use this flaw to trigger a denial of     service. GRO is enabled by default in all network drivers that support it.
    (CVE-2011-2723, Moderate)

    * A flaw was found in the way the Linux kernel's Performance Events     implementation handled PERF_COUNT_SW_CPU_CLOCK counter overflow. A local,     unprivileged user could use this flaw to cause a denial of service.
    (CVE-2011-2918, Moderate)

    * A flaw was found in the Linux kernel's Trusted Platform Module (TPM)     implementation. A local, unprivileged user could use this flaw to leak     information to user-space. (CVE-2011-1160, Low)

    * Flaws were found in the tpacket_rcv() and packet_recvmsg() functions in     the Linux kernel. A local, unprivileged user could use these flaws to leak     information to user-space. (CVE-2011-2898, Low)

    Red Hat would like to thank Vasiliy Kulikov of Openwall for reporting     CVE-2011-1745, CVE-2011-2022, CVE-2011-1746, and CVE-2011-2484; the Ubuntu     Security Team for reporting CVE-2011-1833; Robert Swiecki for reporting     CVE-2011-2496; Li Yu for reporting CVE-2011-2521; Brent Meshier for     reporting CVE-2011-2723; and Peter Huewe for reporting CVE-2011-1160. The     Ubuntu Security Team acknowledges Vasiliy Kulikov of Openwall and Dan     Rosenberg as the original reporters of CVE-2011-1833.

    This update also fixes various bugs and adds one enhancement. Documentation     for these changes will be available shortly from the Technical Notes     document linked to in the References section.

    Users should upgrade to these updated packages, which contain backported     patches to correct these issues, and fix the bugs and add the enhancement     noted in the Technical Notes. The system must be rebooted for this update     to take effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

RHEL 6 : kernel (RHSA-2011:1350)

medium Nessus Plugin ID 56404

Version 1.22

Version 1.21

Version 1.22 Nov 5, 2024, 12:50 PM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Plugin metadata Plugin Feed: 202411051250
Version 1.21 Apr 27, 2024, 10:42 PM CVSS metrics ("CVSSv3 score" set to 5.5) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N") CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:POC/RL:OF/RC:C") CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:P/RL:O/RC:C") CVSSv2 score source (set to "CVE-2011-2022") CVSSv3 score source (set to "CVE-2011-2898") CVSSv3 severity (based on CVE-2011-2898, severity decreased from "High" to "Medium") Detection (updated detection logic) Plugin metadata Reference Plugin Feed: 202404272242