CWE
416
Advisory Published

USN-1797-1: Linux kernel (OMAP4) vulnerabilities

First published: Mon Apr 08 2013(Updated: )

Andrew Jones discovered a flaw with the xen_iret function in Linux kernel's Xen virtualizeation. In the 32-bit Xen paravirt platform an unprivileged guest OS user could exploit this flaw to cause a denial of service (crash the system) or gain guest OS privilege. (CVE-2013-0228) 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) Mathias Krause discovered a memory leak in the Linux kernel's crypto report API. A local user with CAP_NET_ADMIN could exploit this leak to examine some of the kernel's stack memory. (CVE-2013-2546) Mathias Krause discovered a memory leak in the Linux kernel's crypto report API. A local user with CAP_NET_ADMIN could exploit this leak to examine some of the kernel's heap memory. (CVE-2013-2547) Mathias Krause discovered information leaks in the Linux kernel's crypto algorithm report API. A local user could exploit these flaws to leak kernel stack and heap memory contents. (CVE-2013-2548)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-3.5.0-222-omap4<3.5.0-222.33
3.5.0-222.33
Ubuntu gir1.2-packagekitglib-1.0=12.10

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-1797-1?

    USN-1797-1 is considered a critical vulnerability due to its potential to cause denial of service and privilege escalation.

  • How do I fix USN-1797-1?

    To fix USN-1797-1, you should upgrade to linux-image-3.5.0-222-omap4 version 3.5.0-222.34 or later.

  • Who discovered the vulnerability in USN-1797-1?

    The vulnerability in USN-1797-1 was discovered by Andrew Jones.

  • What systems are affected by USN-1797-1?

    USN-1797-1 affects the Ubuntu 12.10 operating system running on the 32-bit Xen paravirtualized platform.

  • What potential impacts does USN-1797-1 have?

    The impacts of USN-1797-1 include the potential for denial of service and unauthorized access to guest OS privileges.

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