CVE-2021-45429
MEDIUMCVSS 5.5/10EPSS 0.83%
Last modified
CVE-2021-45429 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A Buffer Overflow vulnerablity exists in VirusTotal YARA git commit: 605b2edf07ed8eb9a2c61ba22eb2e7c362f47ba7 via yr_set_configuration in yara/libyara/libyara.c, which could cause a Denial of Service.. EPSS estimates a 0.83% chance of exploitation in the next 30 days.
Description
A Buffer Overflow vulnerablity exists in VirusTotal YARA git commit: 605b2edf07ed8eb9a2c61ba22eb2e7c362f47ba7 via yr_set_configuration in yara/libyara/libyara.c, which could cause a Denial of Service.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Virustotal | Yara | <= 4.1.3 |
References
- https://github.com/VirusTotal/yara/issues/1616Exploit, Third Party Advisory
- https://github.com/VirusTotal/yara/issues/1616Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2021-45429?
A Buffer Overflow vulnerablity exists in VirusTotal YARA git commit: 605b2edf07ed8eb9a2c61ba22eb2e7c362f47ba7 via yr_set_configuration in yara/libyara/libyara.c, which could cause a Denial of Service.
How severe is CVE-2021-45429?
CVE-2021-45429 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.83% probability of exploitation in the next 30 days.
How do I fix CVE-2021-45429?
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-2021-45429?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST