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ubuntuUbuntuUSN-679-1
HistoryNov 27, 2008 - 12:00 a.m.

Linux kernel vulnerabilities

2008-11-2700:00:00
ubuntu.com
46

CVSS2

7.8

Attack Vector

NETWORK

Attack 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

AI Score

6.5

Confidence

High

EPSS

0.089

Percentile

94.6%

Releases

  • Ubuntu 8.10
  • Ubuntu 8.04
  • Ubuntu 7.10
  • Ubuntu 6.06

Packages

  • linux -
  • linux-backports-modules-2.6.15 -
  • linux-backports-modules-2.6.22 -
  • linux-backports-modules-2.6.24 -
  • linux-backports-modules-2.6.27 -
  • linux-restricted-modules -
  • linux-restricted-modules-2.6.15 -
  • linux-restricted-modules-2.6.22 -
  • linux-restricted-modules-2.6.24 -
  • linux-source-2.6.15 -
  • linux-source-2.6.22 -
  • linux-ubuntu-modules-2.6.22 -
  • linux-ubuntu-modules-2.6.24 -

Details

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)

CVSS2

7.8

Attack Vector

NETWORK

Attack 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

AI Score

6.5

Confidence

High

EPSS

0.089

Percentile

94.6%