USN-714-1: Linux kernel vulnerabilities

Ubuntu Security Notice USN-714-1

28th January, 2009

linux-source-2.6.15/22, linux vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 8.04 LTS
  • Ubuntu 7.10
  • Ubuntu 6.06 LTS

Software description

  • linux
  • linux-source-2.6.15
  • linux-source-2.6.22


Hugo Dias discovered that the ATM subsystem did not correctly manage socket
counts. A local attacker could exploit this to cause a system hang, leading
to a denial of service. (CVE-2008-5079)

It was discovered that the libertas wireless driver did not correctly
handle beacon and probe responses. A physically near-by attacker could
generate specially crafted wireless network traffic and cause a denial of
service. Ubuntu 6.06 was not affected. (CVE-2008-5134)

It was discovered that the inotify subsystem contained watch removal race
conditions. A local attacker could exploit this to crash the system,
leading to a denial of service. (CVE-2008-5182)

Dann Frazier discovered that in certain situations sendmsg did not
correctly release allocated memory. A local attacker could exploit this to
force the system to run out of free memory, leading to a denial of service.
Ubuntu 6.06 was not affected. (CVE-2008-5300)

It was discovered that the ATA subsystem did not correctly set timeouts. A
local attacker could exploit this to cause a system hang, leading to a
denial of service. (CVE-2008-5700)

It was discovered that the ib700 watchdog timer did not correctly check
buffer sizes. A local attacker could send a specially crafted ioctl to the
device to cause a system crash, leading to a denial of service.

It was discovered that in certain situations the network scheduler did not
correctly handle very large levels of traffic. A local attacker could
produce a high volume of UDP traffic resulting in a system hang, leading to
a denial of service. Ubuntu 8.04 was not affected. (CVE-2008-5713)

Update instructions

The problem can be corrected by updating your system to the following package version:

Ubuntu 8.04 LTS:
linux-image-2.6.24-23-virtual 2.6.24-23.48
linux-image-2.6.24-23-server 2.6.24-23.48
linux-image-2.6.24-23-mckinley 2.6.24-23.48
linux-image-2.6.24-23-sparc64-smp 2.6.24-23.48
linux-image-2.6.24-23-xen 2.6.24-23.48
linux-image-2.6.24-23-powerpc-smp 2.6.24-23.48
linux-image-2.6.24-23-lpiacompat 2.6.24-23.48
linux-image-2.6.24-23-sparc64 2.6.24-23.48
linux-image-2.6.24-23-rt 2.6.24-23.48
linux-image-2.6.24-23-openvz 2.6.24-23.48
linux-image-2.6.24-23-lpia 2.6.24-23.48
linux-image-2.6.24-23-hppa64 2.6.24-23.48
linux-image-2.6.24-23-386 2.6.24-23.48
linux-image-2.6.24-23-powerpc 2.6.24-23.48
linux-image-2.6.24-23-powerpc64-smp 2.6.24-23.48
linux-image-2.6.24-23-itanium 2.6.24-23.48
linux-image-2.6.24-23-hppa32 2.6.24-23.48
linux-image-2.6.24-23-generic 2.6.24-23.48
Ubuntu 7.10:
linux-image-2.6.22-16-mckinley 2.6.22-16.61
linux-image-2.6.22-16-powerpc64-smp 2.6.22-16.61
linux-image-2.6.22-16-virtual 2.6.22-16.61
linux-image-2.6.22-16-cell 2.6.22-16.61
linux-image-2.6.22-16-hppa64 2.6.22-16.61
linux-image-2.6.22-16-sparc64-smp 2.6.22-16.61
linux-image-2.6.22-16-generic 2.6.22-16.61
linux-image-2.6.22-16-lpia 2.6.22-16.61
linux-image-2.6.22-16-powerpc-smp 2.6.22-16.61
linux-image-2.6.22-16-386 2.6.22-16.61
linux-image-2.6.22-16-hppa32 2.6.22-16.61
linux-image-2.6.22-16-rt 2.6.22-16.61
linux-image-2.6.22-16-xen 2.6.22-16.61
linux-image-2.6.22-16-powerpc 2.6.22-16.61
linux-image-2.6.22-16-itanium 2.6.22-16.61
linux-image-2.6.22-16-lpiacompat 2.6.22-16.61
linux-image-2.6.22-16-ume 2.6.22-16.61
linux-image-2.6.22-16-sparc64 2.6.22-16.61
linux-image-2.6.22-16-server 2.6.22-16.61
Ubuntu 6.06 LTS:
linux-image-2.6.15-53-powerpc64-smp 2.6.15-53.75
linux-image-2.6.15-53-powerpc 2.6.15-53.75
linux-image-2.6.15-53-amd64-xeon 2.6.15-53.75
linux-image-2.6.15-53-386 2.6.15-53.75
linux-image-2.6.15-53-amd64-generic 2.6.15-53.75
linux-image-2.6.15-53-686 2.6.15-53.75
linux-image-2.6.15-53-hppa64 2.6.15-53.75
linux-image-2.6.15-53-sparc64 2.6.15-53.75
linux-image-2.6.15-53-amd64-server 2.6.15-53.75
linux-image-2.6.15-53-amd64-k8 2.6.15-53.75
linux-image-2.6.15-53-hppa64-smp 2.6.15-53.75
linux-image-2.6.15-53-sparc64-smp 2.6.15-53.75
linux-image-2.6.15-53-itanium-smp 2.6.15-53.75
linux-image-2.6.15-53-hppa32 2.6.15-53.75
linux-image-2.6.15-53-hppa32-smp 2.6.15-53.75
linux-image-2.6.15-53-mckinley 2.6.15-53.75
linux-image-2.6.15-53-powerpc-smp 2.6.15-53.75
linux-image-2.6.15-53-server-bigiron 2.6.15-53.75
linux-image-2.6.15-53-mckinley-smp 2.6.15-53.75
linux-image-2.6.15-53-server 2.6.15-53.75
linux-image-2.6.15-53-itanium 2.6.15-53.75
linux-image-2.6.15-53-k7 2.6.15-53.75

To update your system, please follow these instructions:

After a standard system upgrade you need to reboot your computer to
effect the necessary changes.


CVE-2008-5079, CVE-2008-5134, CVE-2008-5182, CVE-2008-5300, CVE-2008-5700, CVE-2008-5702, CVE-2008-5713