Heap-based buffer overflow in GIFLIB - CVE-2016-3977
Published: September 6, 2019
Vulnerability identifier: #VU20920
CSH Severity: High
CVSS v4.0: 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
Vendor: GIFLIB Project
Affected software:
GIFLIB
GIFLIB
Detailed vulnerability 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.
How to mitigate CVE-2016-3977
Install update from vendor's website.
Sources
- 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/