Use After Free in Optipng Project

CVE-2009-0749

Use-after-free vulnerability in the GIFReadNextExtension function in lib/pngxtern/gif/gifread.c in OptiPNG 0.6.2 and earlier allows context-dependent attackers to cause a denial of service (application crash) via a crafted GIF image that causes the realloc function to return a new pointer, which triggers memory corruption when the old pointer is accessed.

Vulnerability class: Use-After-Free

EPSS: 0.016 (72.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

  • cve@mitre.org (x_refsource_SECUNIA, Broken Link, third-party-advisory)
  • cve@mitre.org (x_refsource_SECUNIA, Broken Link, third-party-advisory)
  • cve@mitre.org (x_refsource_SECUNIA, Broken Link, Vendor Advisory, third-party-advisory)
  • cve@mitre.org (Patch, VDB Entry, Third Party Advisory, vdb-entry, Broken Link, x_refsource_BID)
  • cve@mitre.org (vendor-advisory, Mailing List, x_refsource_SUSE)
  • cve@mitre.org (Patch, vdb-entry, Broken Link, x_refsource_VUPEN, Vendor Advisory)
  • cve@mitre.org (x_refsource_CONFIRM, Product)
  • cve@mitre.org (x_refsource_CONFIRM, Issue Tracking)
  • cve@mitre.org (x_refsource_SECUNIA, Broken Link, third-party-advisory)
  • cve@mitre.org (vendor-advisory, Mailing List, x_refsource_SUSE)

Frequently asked questions

What is CVE-2009-0749?
CVE-2009-0749 is a high-severity vulnerability in Optipng Project, classified under Use After Free. CVSS score: 7.8/10. Published 2009-03-02.
How severe is CVE-2009-0749?
High severity. CVSS v3 base score is 7.8 out of 10.