CVE-2021-45910
HIGHCVSS 7.8/10EPSS 0.87%
Last modified
CVE-2021-45910 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. An issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow within the main function. EPSS estimates a 0.87% chance of exploitation in the next 30 days.
Description
An issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow within the main function. It allows an attacker to write data outside of the allocated buffer. The attacker has control over a part of the address that data is written to, control over the written data, and (to some extent) control over the amount of data that is written.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gif2apng Project | Gif2apng | 1.9 |
| Debian | Debian Linux | 9.0 |
References
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1002667Exploit, Issue Tracking, Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00008.htmlMailing List, Third Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1002667Exploit, Issue Tracking, Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00008.htmlMailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-45910?
An issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow within the main function. It allows an attacker to write data outside of the allocated buffer. The attacker has control over a part of the address that data is written to, control over the written data, and (to some extent) control over the amount of data that is written.
How severe is CVE-2021-45910?
CVE-2021-45910 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.87% probability of exploitation in the next 30 days.
How do I fix CVE-2021-45910?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-45910?
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