Ubuntu Security Notice 1488-1 - Stephan Mueller reported a flaw in the Linux kernel's dl2k network driver's handling of ioctls. An unprivileged local user could leverage this flaw to cause a denial of service. Timo Warns reported multiple flaws in the Linux kernel's hfsplus filesystem. An unprivileged local user could exploit these flaws to gain root system privileges. A flaw was discovered in the Linux kernel's NFSv4 (Network file system) handling of ACLs (access control lists). A remote NFS server (attacker) could cause a denial of service (OOPS). Various other issues were also addressed.
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Ubuntu Security Notice USN-1488-1
June 29, 2012
linux vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.04
Summary:
Several security issues were fixed in the kernel.
Software Description:
- linux: Linux kernel
Details:
Stephan Mueller reported a flaw in the Linux kernel's dl2k network driver's
handling of ioctls. An unprivileged local user could leverage this flaw to
cause a denial of service. (CVE-2012-2313)
Timo Warns reported multiple flaws in the Linux kernel's hfsplus
filesystem. An unprivileged local user could exploit these flaws to gain
root system priviliges. (CVE-2012-2319)
A flaw was discovered in the Linux kernel's NFSv4 (Network file system)
handling of ACLs (access control lists). A remote NFS server (attacker)
could cause a denial of service (OOPS). (CVE-2012-2375)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 11.04:
linux-image-2.6.38-15-generic 2.6.38-15.61
linux-image-2.6.38-15-generic-pae 2.6.38-15.61
linux-image-2.6.38-15-omap 2.6.38-15.61
linux-image-2.6.38-15-powerpc 2.6.38-15.61
linux-image-2.6.38-15-powerpc-smp 2.6.38-15.61
linux-image-2.6.38-15-powerpc64-smp 2.6.38-15.61
linux-image-2.6.38-15-server 2.6.38-15.61
linux-image-2.6.38-15-versatile 2.6.38-15.61
linux-image-2.6.38-15-virtual 2.6.38-15.61
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1488-1
CVE-2012-2313, CVE-2012-2319, CVE-2012-2375
Package Information:
https://launchpad.net/ubuntu/+source/linux/2.6.38-15.61