SB2021042162 - Denial of service in giflib
Published: April 21, 2021 Updated: July 9, 2024
Security Bulletin ID
SB2021042162
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2020-23922)
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.
Remediation
Install update from vendor's website.
References
- 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