CVE-2021-45909

Public Exploit

Description

An issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow vulnerability in the DecodeLZW function. It allows an attacker to write a large amount of arbitrary data outside the boundaries of a buffer.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.14%
Third-Party Advisory debian.org Third-Party Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1002668 issue tracking mailing list exploit third party advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00008.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2021-45909?
CVE-2021-45909 has been scored as a high severity vulnerability.
How to fix CVE-2021-45909?
To fix CVE-2021-45909, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-45909 being actively exploited in the wild?
It is possible that CVE-2021-45909 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.