CVE-2017-9438
7.5
HIGH
CVSS 3.1
EPSS 0.61%
Description
libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of service (stack consumption) via a crafted rule (involving hex strings) that is mishandled in the _yr_re_emit function, a different vulnerability than CVE-2017-9304.
How to fix CVE-2017-9438
To remediate CVE-2017-9438, upgrade the affected package to a fixed version below.
- Debian/yara—upgrade to 3.6.1+dfsg-1 or later
Is CVE-2017-9438 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.6.1+dfsg-1
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 |