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CVE-2017-8929

Published: 14 May 2017

The sized_string_cmp function in libyara/sizedstr.c in YARA 3.5.0 allows remote attackers to cause a denial of service (use-after-free and application crash) via a crafted rule.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
yara
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Not vulnerable
(3.7.1-1ubuntu2)
cosmic Not vulnerable
(3.7.1-1ubuntu2)
disco Not vulnerable
(3.7.1-1ubuntu2)
eoan Not vulnerable
(3.7.1-1ubuntu2)
focal Not vulnerable
(3.7.1-1ubuntu2)
groovy Not vulnerable
(3.7.1-1ubuntu2)
hirsute Not vulnerable
(3.7.1-1ubuntu2)
impish Not vulnerable
(3.7.1-1ubuntu2)
jammy Not vulnerable
(3.7.1-1ubuntu2)
kinetic Not vulnerable
(3.7.1-1ubuntu2)
lunar Not vulnerable
(3.7.1-1ubuntu2)
mantic Not vulnerable
(3.7.1-1ubuntu2)
noble Not vulnerable
(3.7.1-1ubuntu2)
trusty Does not exist
(trusty was needed)
upstream
Released (3.6.0+dfsg-1)
xenial Needed

yakkety Ignored
(end of life)
zesty Ignored
(end of life)
Patches:
upstream: https://github.com/VirusTotal/yara/commit/053e67e3ec81cc9268ce30eaf0d6663d8639ed1e

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H