CVE-2017-5923 describes a heap-based out-of-bounds read vulnerability in YARA 3.5.0, specifically within the libyara/grammar.y component, affecting products like VirusTotal YARA. This flaw allows remote attackers to trigger a denial of service and application crash by submitting a specially crafted rule to the yara_yyparse function. Rated High with a CVSS score of 7.5, the vulnerability is easily exploitable over the network with low attack complexity, leading to a complete loss of availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
3.5.0CPE matchmatch criteria | cpe:2.3:a:virustotal:yara:3.5.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No social media mentions found for this CVE.
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.