Linux kernel vulnerabilities

2013-04-08T00:00:00
ID USN-1792-1
Type ubuntu
Reporter Ubuntu
Modified 2013-04-08T00:00:00

Description

Mathias Krause discovered several errors in the Linux kernel’s xfrm_user implementation. A local attacker could exploit these flaws to examine parts of kernel memory. (CVE-2012-6537)

Mathias Krause discovered information leak in the Linux kernel’s compat ioctl interface. A local user could exploit the flaw to examine parts of kernel stack memory (CVE-2012-6539)

Mathias Krause discovered an information leak in the Linux kernel’s getsockopt for IP_VS_SO_GET_TIMEOUT. A local user could exploit this flaw to examine parts of kernel stack memory. (CVE-2012-6540)

Emese Revfy discovered that in the Linux kernel signal handlers could leak address information across an exec, making it possible to by pass ASLR (Address Space Layout Randomization). A local user could use this flaw to by pass ASLR to reliably deliver an exploit payload that would otherwise be stopped (by ASLR). (CVE-2013-0914)

A memory use after free error was discover in the Linux kernel’s tmpfs filesystem. A local user could exploit this flaw to gain privileges or cause a denial of service (system crash). (CVE-2013-1767)

Mateusz Guzik discovered a race in the Linux kernel’s keyring. A local user could exploit this flaw to cause a denial of service (system crash). (CVE-2013-1792)