CVE-2017-5923
UnknownEPSS 1.65%
Last modified
CVE-2017-5923 is a vulnerability of currently unknown severity. libyara/grammar.y in YARA 3.5.0 allows remote attackers to cause a denial of service (heap-based out-of-bounds read and application crash) via a crafted rule that is mishandled in the yara_yyparse function.. EPSS estimates a 1.65% chance of exploitation in the next 30 days.
Description
libyara/grammar.y in YARA 3.5.0 allows remote attackers to cause a denial of service (heap-based out-of-bounds read and application crash) via a crafted rule that is mishandled in the yara_yyparse function.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Virustotal | Yara | 3.5.0 |
References
- https://github.com/VirusTotal/yara/commit/ab906da53ff2a68c6fd6d1fa73f2b7c7bf0bc636Patch, Vendor Advisory
- https://github.com/VirusTotal/yara/issues/597Exploit, Issue Tracking, Patch
- https://github.com/VirusTotal/yara/commit/ab906da53ff2a68c6fd6d1fa73f2b7c7bf0bc636Patch, Vendor Advisory
- https://github.com/VirusTotal/yara/issues/597Exploit, Issue Tracking, Patch
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2017-5923?
libyara/grammar.y in YARA 3.5.0 allows remote attackers to cause a denial of service (heap-based out-of-bounds read and application crash) via a crafted rule that is mishandled in the yara_yyparse function.
How severe is CVE-2017-5923?
Severity scoring for CVE-2017-5923 is pending analysis. The EPSS model estimates a 1.65% probability of exploitation in the next 30 days.
How do I fix CVE-2017-5923?
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-2017-5923?
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Scan your code nowSource: NVD / NIST