Advisory Published

USN-1876-1: Linux kernel vulnerabilities

First published: Fri Jun 14 2013(Updated: )

Andrew Honig reported a flaw in the way KVM (Kernel-based Virtual Machine) emulated the IOAPIC. A privileged guest user could exploit this flaw to read host memory or cause a denial of service (crash the host). (CVE-2013-1798) An information leak was discovered in the Linux kernel's rcvmsg path for ATM (Asynchronous Transfer Mode). A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3222) An information leak was discovered in the Linux kernel's recvmsg path for ax25 address family. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3223) An information leak was discovered in the Linux kernel's recvmsg path for the bluetooth address family. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3224) An information leak was discovered in the Linux kernel's bluetooth rfcomm protocol support. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3225) An information leak was discovered in the Linux kernel's IRDA (infrared) support subsystem. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3228) An information leak was discovered in the Linux kernel's s390 - z/VM support. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3229) An information leak was discovered in the Linux kernel's llc (Logical Link Layer 2) support. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3231) An information leak was discovered in the Linux kernel's receive message handling for the netrom address family. A local user could exploit this flaw to obtain sensitive information from the kernel's stack memory. (CVE-2013-3232) An information leak was discovered in the Linux kernel's Rose X.25 protocol layer. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3234) An information leak was discovered in the Linux kernel's TIPC (Transparent Inter Process Communication) protocol implementation. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3235)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-2.6.32-48-powerpc-smp<2.6.32-48.110
2.6.32-48.110
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-48-versatile<2.6.32-48.110
2.6.32-48.110
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-48-server<2.6.32-48.110
2.6.32-48.110
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-48-powerpc64-smp<2.6.32-48.110
2.6.32-48.110
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-48-lpia<2.6.32-48.110
2.6.32-48.110
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-48-386<2.6.32-48.110
2.6.32-48.110
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-48-generic-pae<2.6.32-48.110
2.6.32-48.110
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-48-sparc64-smp<2.6.32-48.110
2.6.32-48.110
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-48-preempt<2.6.32-48.110
2.6.32-48.110
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-48-sparc64<2.6.32-48.110
2.6.32-48.110
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-48-ia64<2.6.32-48.110
2.6.32-48.110
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-48-virtual<2.6.32-48.110
2.6.32-48.110
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-48-generic<2.6.32-48.110
2.6.32-48.110
Ubuntu 22.04 LTS=10.04
All of
ubuntu/linux-image-2.6.32-48-powerpc<2.6.32-48.110
2.6.32-48.110
Ubuntu 22.04 LTS=10.04

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Frequently Asked Questions

  • What is the severity of USN-1876-1?

    USN-1876-1 is considered a high severity vulnerability due to its potential for information leakage and denial of service.

  • How do I fix USN-1876-1?

    To mitigate the vulnerability identified in USN-1876-1, upgrade to the linux-image packages version 2.6.32-48.110 or later.

  • Who is affected by USN-1876-1?

    USN-1876-1 affects users of Ubuntu 10.04 using specific linux-image packages, including but not limited to linux-image-2.6.32-48-server and linux-image-2.6.32-48-generic.

  • What causes USN-1876-1 vulnerability?

    The USN-1876-1 vulnerability arises from a flaw in the Kernel-based Virtual Machine's emulation of the IOAPIC, allowing a privileged guest user to exploit host memory.

  • Is there a workaround for USN-1876-1?

    There is no recommended workaround; the best action is to apply the official fix by upgrading the affected packages.

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