Integer overflow in Libgd
CVE-2016-7568
Integer overflow in the gdImageWebpCtx function in gd_webp.c in the GD Graphics Library (aka libgd) through 2.2.3, as used in PHP through 7.0.11, allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted imagewebp and imagedestroy calls.
Vulnerability class: Integer Overflow
EPSS: 0.051 (91.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Libgd
- Php
- Debian Debian_linux — versions 8.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory, Issue Tracking)
- cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- cve@mitre.org (x_refsource_CONFIRM, Issue Tracking, Vendor Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory, Issue Tracking)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory, Issue Tracking)
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
Frequently asked questions
- What is CVE-2016-7568?
- CVE-2016-7568 is a critical-severity vulnerability in Libgd, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2016-09-28.
- How severe is CVE-2016-7568?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2016-7568 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.