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RedHatRHSA-2010:0076
HistoryFeb 02, 2010 - 12:00 a.m.

(RHSA-2010:0076) Important: kernel security and bug fix update

2010-02-0200:00:00
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28

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

0.113 Low

EPSS

Percentile

94.6%

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

This update fixes the following security issues:

  • an array index error was found in the gdth driver in the Linux kernel. A
    local user could send a specially-crafted IOCTL request that would cause a
    denial of service or, possibly, privilege escalation. (CVE-2009-3080,
    Important)

  • a flaw was found in the collect_rx_frame() function in the HiSax ISDN
    driver (hfc_usb) in the Linux kernel. An attacker could use this flaw to
    send a specially-crafted HDLC packet that could trigger a buffer out of
    bounds, possibly resulting in a denial of service. (CVE-2009-4005,
    Important)

  • permission issues were found in the megaraid_sas driver (for SAS based
    RAID controllers) in the Linux kernel. The “dbg_lvl” and “poll_mode_io”
    files on the sysfs file system (“/sys/”) had world-writable permissions.
    This could allow local, unprivileged users to change the behavior of the
    driver. (CVE-2009-3889, CVE-2009-3939, Moderate)

  • a buffer overflow flaw was found in the hfs_bnode_read() function in the
    HFS file system implementation in the Linux kernel. This could lead to a
    denial of service if a user browsed a specially-crafted HFS file system,
    for example, by running “ls”. (CVE-2009-4020, Low)

This update also fixes the following bugs:

  • if a process was using ptrace() to trace a multi-threaded process, and
    that multi-threaded process dumped its core, the process performing the
    trace could hang in wait4(). This issue could be triggered by running
    “strace -f” on a multi-threaded process that was dumping its core,
    resulting in the strace command hanging. (BZ#555869)

  • a bug in the ptrace() implementation could have, in some cases, caused
    ptrace_detach() to create a zombie process if the process being traced
    was terminated with a SIGKILL signal. (BZ#555869)

  • the RHSA-2010:0020 update resolved an issue (CVE-2009-4537) in the
    Realtek r8169 Ethernet driver. This update implements a better solution for
    that issue. Note: This is not a security regression. The original fix was
    complete. This update is adding the official upstream fix. (BZ#556406)

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.

Use Vulners API to create your own security tool

API usage cases
  • Network scanning
  • Linux Patch management
  • Threat protection
  • No network audit solution

Ways of integration

Integrate Vulners API

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

0.113 Low

EPSS

Percentile

94.6%

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