CVE-2017-5923
7.5
HIGH
CVSS 3.1
EPSS 0.49%
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.
How to fix CVE-2017-5923
To remediate CVE-2017-5923, upgrade the affected package to a fixed version below.
- Debian/yara—upgrade to 3.5.0+dfsg-9 or later
Is CVE-2017-5923 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.5.0+dfsg-9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |