Ubuntu 6.06 LTS / 7.10 / 8.04 LTS / 8.10 : linux, linux-source-2.6.15/22 vulnerabilities (USN-679-1)

Ubuntu Security Notice (C) 2008-2013 Canonical, Inc. / NASL script (C) 2009-2013 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related patches.

Description :

It was discovered that the Xen hypervisor block driver did not
correctly validate requests. A user with root privileges in a guest OS
could make a malicious IO request with a large number of blocks that
would crash the host OS, leading to a denial of service. This only
affected Ubuntu 7.10. (CVE-2007-5498)

It was discovered the the i915 video driver did not correctly validate
memory addresses. A local attacker could exploit this to remap memory
that could cause a system crash, leading to a denial of service. This
issue did not affect Ubuntu 6.06 and was previous fixed for Ubuntu
7.10 and 8.04 in USN-659-1. Ubuntu 8.10 has now been corrected as
well. (CVE-2008-3831)

David Watson discovered that the kernel did not correctly strip
permissions when creating files in setgid directories. A local user
could exploit this to gain additional group privileges. This issue
only affected Ubuntu 6.06. (CVE-2008-4210)

Olaf Kirch and Miklos Szeredi discovered that the Linux kernel did not
correctly reject the 'append' flag when handling file splice requests.
A local attacker could bypass append mode and make changes to
arbitrary locations in a file. This issue only affected Ubuntu 7.10
and 8.04. (CVE-2008-4554)

It was discovered that the SCTP stack did not correctly handle
INIT-ACK. A remote user could exploit this by sending specially
crafted SCTP traffic which would trigger a crash in the system,
leading to a denial of service. This issue did not affect Ubuntu 8.10.
(CVE-2008-4576)

It was discovered that the SCTP stack did not correctly handle bad
packet lengths. A remote user could exploit this by sending specially
crafted SCTP traffic which would trigger a crash in the system,
leading to a denial of service. This issue did not affect Ubuntu 8.10.
(CVE-2008-4618)

Eric Sesterhenn discovered multiple flaws in the HFS+ filesystem. If a
local user or automated system were tricked into mounting a malicious
HFS+ filesystem, the system could crash, leading to a denial of
service. (CVE-2008-4933, CVE-2008-4934, CVE-2008-5025)

It was discovered that the Unix Socket handler did not correctly
process the SCM_RIGHTS message. A local attacker could make a
malicious socket request that would crash the system, leading to a
denial of service. (CVE-2008-5029)

It was discovered that the driver for simple i2c audio interfaces did
not correctly validate certain function pointers. A local user could
exploit this to gain root privileges or crash the system, leading to a
denial of service. (CVE-2008-5033).

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)