RHEL 6 : kernel (RHSA-2014:1763)

This script is Copyright (C) 2014-2017 Tenable Network Security, Inc.


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

Updated kernel packages that fix two security issues are now available
for Red Hat Enterprise Linux 6.2 Advanced Update Support.

Red Hat Product Security has rated this update as having Important
security impact. Common Vulnerability Scoring System (CVSS) base
scores, which give detailed severity ratings, are available for each
vulnerability from the CVE links in the References section.

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

* A flaw was found in the way the Linux kernel's futex subsystem
handled reference counting when requeuing futexes during futex_wait().
A local, unprivileged user could use this flaw to zero out the
reference counter of an inode or an mm struct that backs up the memory
area of the futex, which could lead to a use-after-free flaw,
resulting in a system crash or, potentially, privilege escalation.
(CVE-2014-0205)

* A NULL pointer dereference flaw was found in the way the Linux
kernel's Stream Control Transmission Protocol (SCTP) implementation
handled simultaneous connections between the same hosts. A remote
attacker could use this flaw to crash the system. (CVE-2014-5077)

The security impact of the CVE-2014-0205 issue was discovered by
Mateusz Guzik of Red Hat.

All kernel users are advised to upgrade to these updated packages,
which contain backported patches to correct these issues. The system
must be rebooted for this update to take effect.

See also :

https://www.redhat.com/security/data/cve/CVE-2014-0205.html
https://www.redhat.com/security/data/cve/CVE-2014-5077.html
http://rhn.redhat.com/errata/RHSA-2014-1763.html

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 6.9
(CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 5.7
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Red Hat Local Security Checks

Nessus Plugin ID: 79061 ()

Bugtraq ID:

CVE ID: CVE-2014-0205
CVE-2014-5077

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