CWE
416 399
Advisory Published
CVE Published
Updated

CVE-2013-1797: Use After Free

First published: Fri Mar 01 2013(Updated: )

Description of the problem: There is a potential use after free issue with the handling of MSR_KVM_SYSTEM_TIME. If the guest specifies a GPA in a movable or removable memory such as frame buffers then KVM might continue to write to that address even after it's removed via KVM_SET_USER_MEMORY_REGION. KVM pins the page in memory so it's unlikely to cause an issue, but if the user space component re-purposes the memory previously used for the guest, then the guest will be able to corrupt that memory. Acknowledgements: Red Hat would like to thank Andrew Honig of Google for reporting this issue.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Linux Kernel<=3.8.4
Linux Kernel=3.8.0
Linux Kernel=3.8.1
Linux Kernel=3.8.2
Linux Kernel=3.8.3
debian/linux
5.10.223-1
5.10.234-1
6.1.129-1
6.1.133-1
6.12.22-1

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2013-1797?

    CVE-2013-1797 is classified as a high-severity vulnerability due to its potential for exploitation in KVM environments.

  • How do I fix CVE-2013-1797?

    To fix CVE-2013-1797, update your Linux kernel to a version greater than 3.8.4 or apply the relevant patches.

  • Which versions of Linux Kernel are affected by CVE-2013-1797?

    CVE-2013-1797 affects Linux kernel versions prior to 3.8.4, including 3.8.0, 3.8.1, 3.8.2, and 3.8.3.

  • Can CVE-2013-1797 be exploited remotely?

    CVE-2013-1797 has the potential for exploitation in a virtualized environment, which may allow for remote attacks.

  • What systems are primarily impacted by CVE-2013-1797?

    CVE-2013-1797 primarily impacts systems using KVM virtualization on affected Linux kernel versions.

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