What’s Vulnerable › Vulnerabilities

CVE-2016-6128

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-08-07 · updated 2026-06-17
• Weakness: CWE-20

Description

The gdImageCropThreshold function in gd_crop.c in the GD Graphics Library (aka libgd) before 2.2.3, as used in PHP before 7.0.9, allows remote attackers to cause a denial of service (application crash) via an invalid color index.

Affected products

• Canonical Ubuntu Linux: 12.04, 14.04, 15.10, 16.04
• Debian Linux: 8.0
• Libgd: through 2.2.2
• openSUSE Leap: 42.1

References

• http://lists.opensuse.org/opensuse-updates/2016-08/msg00086.html
• http://lists.opensuse.org/opensuse-updates/2016-09/msg00078.html
• http://rhn.redhat.com/errata/RHSA-2016-2750.html
• http://www.debian.org/security/2016/dsa-3619
• http://www.openwall.com/lists/oss-security/2016/06/30/1
• http://www.securityfocus.com/bid/91509
• http://www.securitytracker.com/id/1036276
• http://www.ubuntu.com/usn/USN-3030-1
• https://bugs.php.net/72494
• https://github.com/libgd/libgd/commit/1ccfe21e14c4d18336f9da8515cd17db88c3de61
• https://github.com/libgd/libgd/commit/6ff72ae40c7c20ece939afb362d98cc37f4a1c96
• https://libgd.github.io/release-2.2.3.html

Get alerted when CVE-2016-6128 or the next vulnerability affects your stack