Advisory Published

USN-1649-1: Linux kernel (OMAP4) vulnerabilities

First published: Fri Nov 30 2012(Updated: )

Brad Spengler discovered a flaw in the Linux kernel's uname system call. An unprivileged user could exploit this flaw to read kernel stack memory. (CVE-2012-0957) Rodrigo Freire discovered a flaw in the Linux kernel's TCP illinois congestion control algorithm. A local attacker could use this to cause a denial of service. (CVE-2012-4565) Mathias Krause discovered a flaw in the Linux kernel's XFRM netlink interface. A local user with the NET_ADMIN capability could exploit this flaw to leak the contents of kernel memory. (CVE-2012-6536) 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 an information leak in the Linux kernel's xfrm_user copy_to_user_auth function. A local user could exploit this flaw to examine parts of kernel heap memory. (CVE-2012-6538) 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) Mathias Krause discovered an information leak in the Linux kernel's getsockopt implementation for the Datagram Congestion Control Protocol (DCCP). A local user could exploit this flaw to examine some of the kernel's stack memory. (CVE-2012-6541) Mathias Krause discovered an information leak in the Linux kernel's getsockname implementation for Logical Link Layer (llc) sockets. A local user could exploit this flaw to examine some of the kernel's stack memory. (CVE-2012-6542) Mathias Krause discovered information leaks in the Linux kernel's Bluetooth Logical Link Control and Adaptation Protocol (L2CAP) implementation. A local user could exploit these flaws to examine some of the kernel's stack memory. (CVE-2012-6544) Mathias Krause discovered information leaks in the Linux kernel's Bluetooth RFCOMM protocol implementation. A local user could exploit these flaws to examine parts of kernel memory. (CVE-2012-6545) Mathias Krause discovered information leaks in the Linux kernel's Asynchronous Transfer Mode (ATM) networking stack. A local user could exploit these flaws to examine some parts of kernel memory. (CVE-2012-6546) A flaw was discovered in the Linux kernels handling of memory ranges with PROT_NONE when transparent hugepages are in use. An unprivileged local user could exploit this flaw to cause a denial of service (crash the system). (CVE-2013-0309) Mathias Krause discovered a flaw in xfrm_user in the Linux kernel. A local attacker with NET_ADMIN capability could potentially exploit this flaw to escalate privileges. (CVE-2013-1826) An information leak was discovered in the Linux kernel's /dev/dvb device. A local user could exploit this flaw to obtain sensitive information from the kernel's stack memory. (CVE-2013-1928)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-3.0.0-1218-omap4<3.0.0-1218.31
3.0.0-1218.31
=11.10

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