Out-of-bounds read in GIFLIB - CVE-2020-23922
Published: July 9, 2024
Vulnerability identifier: #VU93876
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-23922
CWE-ID: CWE-125
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 perform a denial of service (DoS) attack.
The vulnerability exists due to heap-based buffer over-read within the DumpScreen2RGB() function in gif2rgb.c. A remote attacker can pass a specially crafted file to the application and perform a denial of service attack.
How to mitigate CVE-2020-23922
Install update from vendor's website.
Sources
- https://sourceforge.net/p/giflib/bugs/151/
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E
- https://cwe.mitre.org/data/definitions/126.html