| Description: | Summary:
The remote host is missing an update for the 'linux-source-2.6.17, linux-source-2.6.20, linux-source-2.6.22' package(s) announced via the USN-574-1 advisory.
Vulnerability Insight:
The minix filesystem did not properly validate certain filesystem
values. If a local attacker could trick the system into attempting
to mount a corrupted minix filesystem, the kernel could be made to
hang for long periods of time, resulting in a denial of service.
This was only vulnerable in Ubuntu 7.04 and 7.10. (CVE-2006-6058)
The signal handling on PowerPC systems using HTX allowed local users
to cause a denial of service via floating point corruption. This was
only vulnerable in Ubuntu 6.10 and 7.04. (CVE-2007-3107)
The Linux kernel did not properly validate the hop-by-hop IPv6
extended header. Remote attackers could send a crafted IPv6 packet
and cause a denial of service via kernel panic. This was only
vulnerable in Ubuntu 7.04. (CVE-2007-4567)
The JFFS2 filesystem with ACL support enabled did not properly store
permissions during inode creation and ACL setting. Local users could
possibly access restricted files after a remount. This was only
vulnerable in Ubuntu 7.04 and 7.10. (CVE-2007-4849)
Chris Evans discovered an issue with certain drivers that use the
ieee80211_rx function. Remote attackers could send a crafted 802.11
frame and cause a denial of service via crash. This was only
vulnerable in Ubuntu 7.04 and 7.10. (CVE-2007-4997)
Alex Smith discovered an issue with the pwc driver for certain webcam
devices. A local user with physical access to the system could remove
the device while a userspace application had it open and cause the USB
subsystem to block. This was only vulnerable in Ubuntu 7.04.
(CVE-2007-5093)
Scott James Remnant discovered a coding error in ptrace. Local users
could exploit this and cause the kernel to enter an infinite loop.
This was only vulnerable in Ubuntu 7.04 and 7.10. (CVE-2007-5500)
It was discovered that the Linux kernel could dereference a NULL
pointer when processing certain IPv4 TCP packets. A remote attacker
could send a crafted TCP ACK response and cause a denial of service
via crash. This was only vulnerable in Ubuntu 7.10. (CVE-2007-5501)
Warren Togami discovered that the hrtimer subsystem did not properly
check for large relative timeouts. A local user could exploit this and
cause a denial of service via soft lockup. (CVE-2007-5966)
Venustech AD-LAB discovered a buffer overflow in the isdn net
subsystem. This issue is exploitable by local users via crafted input
to the isdn_ioctl function. (CVE-2007-6063)
It was discovered that the isdn subsystem did not properly check for
NULL termination when performing ioctl handling. A local user could
exploit this to cause a denial of service. (CVE-2007-6151)
Blake Frantz discovered that when a root process overwrote an existing
core file, the resulting core file retained the previous core file's
ownership. Local users could exploit this to gain access to sensitive
information. (CVE-2007-6206)
Hugh Dickins discovered the when using the tmpfs filesystem, under
rare ... [Please see the references for more information on the vulnerabilities]
Affected Software/OS:
'linux-source-2.6.17, linux-source-2.6.20, linux-source-2.6.22' package(s) on Ubuntu 6.10, Ubuntu 7.04, Ubuntu 7.10.
Solution:
Please install the updated package(s).
CVSS Score:
7.8
CVSS Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:C
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