Out-of-bounds Read in Virustotal Yara
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.
Vulnerability class: Buffer Overflow
EPSS: 0.016 (74.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Virustotal Yara — versions 3.5.0
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_CONFIRM, Exploit, Patch, Issue Tracking)
- cve@mitre.org (vdb-entry, x_refsource_BID)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2017-5923?
- CVE-2017-5923 is a high-severity vulnerability in Virustotal Yara, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2017-04-03.
- How severe is CVE-2017-5923?
- High severity. CVSS v3 base score is 7.5 out of 10.