Ubuntu 7.10 / 8.04 LTS / 8.10 : linux, linux-source-2.6.22 vulnerabilities (USN-751-1)

Ubuntu Security Notice (C) 2009-2013 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 :

NFS did not correctly handle races between fcntl and interrupts. A
local attacker on an NFS mount could consume unlimited kernel memory,
leading to a denial of service. Ubuntu 8.10 was not affected.
(CVE-2008-4307)

Sparc syscalls did not correctly check mmap regions. A local attacker
could cause a system panic, leading to a denial of service. Ubuntu
8.10 was not affected. (CVE-2008-6107)

In certain situations, cloned processes were able to send signals to
parent processes, crossing privilege boundaries. A local attacker
could send arbitrary signals to parent processes, leading to a denial
of service. (CVE-2009-0028)

The kernel keyring did not free memory correctly. A local attacker
could consume unlimited kernel memory, leading to a denial of service.
(CVE-2009-0031)

The SCTP stack did not correctly validate FORWARD-TSN packets. A
remote attacker could send specially crafted SCTP traffic causing a
system crash, leading to a denial of service. (CVE-2009-0065)

The eCryptfs filesystem did not correctly handle certain VFS return
codes. A local attacker with write-access to an eCryptfs filesystem
could cause a system crash, leading to a denial of service.
(CVE-2009-0269)

The Dell platform device did not correctly validate user parameters. A
local attacker could perform specially crafted reads to crash the
system, leading to a denial of service. (CVE-2009-0322)

The page fault handler could consume stack memory. A local attacker
could exploit this to crash the system or gain root privileges with a
Kprobe registered. Only Ubuntu 8.10 was affected. (CVE-2009-0605)

Network interfaces statistics for the SysKonnect FDDI driver did not
check capabilities. A local user could reset statistics, potentially
interfering with packet accounting systems. (CVE-2009-0675)

The getsockopt function did not correctly clear certain parameters. A
local attacker could read leaked kernel memory, leading to a loss of
privacy. (CVE-2009-0676)

The ext4 filesystem did not correctly clear group descriptors when
resizing. A local attacker could exploit this to crash the system,
leading to a denial of service. (CVE-2009-0745)

The ext4 filesystem did not correctly validate certain fields. A local
attacker could mount a malicious ext4 filesystem, causing a system
crash, leading to a denial of service. (CVE-2009-0746, CVE-2009-0747,
CVE-2009-0748)

The syscall interface did not correctly validate parameters when
crossing the 64-bit/32-bit boundary. A local attacker could bypass
certain syscall restricts via crafted syscalls. (CVE-2009-0834,
CVE-2009-0835)

The shared memory subsystem did not correctly handle certain shmctl
calls when CONFIG_SHMEM was disabled. Ubuntu kernels were not
vulnerable, since CONFIG_SHMEM is enabled by default. (CVE-2009-0859)

The virtual consoles did not correctly handle certain UTF-8 sequences.
A local attacker on the physical console could exploit this to cause a
system crash, leading to a denial of service. (CVE-2009-1046).

Solution :

Update the affected packages.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)