Input validation error in libgd - CVE-2016-6128
Published: August 7, 2016 / Updated: July 28, 2020
Vulnerability identifier: #VU32246
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-6128
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
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 software
libgd
Gentoo Linux
Fedora
gd (Alpine package)
gd
Gentoo Linux
Fedora
gd (Alpine package)
gd
How to mitigate CVE-2016-6128
Install update from vendor's website.
libgd - update to 2.2.3
gd (Alpine package) - update to 2.1.1-r2
gd - update to 2.2.3-1.fc24
gd (Alpine package) - update to 2.1.1-r2
gd - update to 2.2.3-1.fc24
External 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
- https://security.gentoo.org/glsa/201612-09