#VU20920 Heap-based buffer overflow in GIFLIB - CVE-2016-3977
Published: September 6, 2019
Vulnerability identifier: #VU20920
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2016-3977
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
GIFLIB
GIFLIB
Software vendor:
GIFLIB Project
GIFLIB Project
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the gif2rgb() function (util/gif2rgb.c) in giflib 5.1.2. A remote attacker can use background color index in a GIF file to trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.
External links
- http://bugs.fi/fuzzing/index.html
- http://lists.opensuse.org/opensuse-updates/2016-04/msg00079.html
- http://lists.opensuse.org/opensuse-updates/2016-04/msg00084.html
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00019.html
- http://www.securityfocus.com/bid/88103
- https://bugzilla.redhat.com/show_bug.cgi?id=1325771
- https://sourceforge.net/p/giflib/bugs/87/
- https://sourceforge.net/p/giflib/code/ci/ea8dbc5786862a3e16a5acfa3d24e2c2f608cd88/