CVE-2018-19974

Medium

Description

In YARA 3.8.1, bytecode in a specially crafted compiled rule can read uninitialized data from VM scratch memory in libyara/exec.c. This can allow attackers to discover addresses in the real stack (not the YARA virtual stack).

SeverityMedium

CVSS5.5

Exploit probability—

ProductVirustotal Yara

PublishedDec 17, 2018

First seenDec 17, 2018

How to fix

Vendor advisories

lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DFFXDAMP6GJ337LIOTVF5I4T6QGMN3ZR/

Affected products

Product	Affected versions	Fixed in
virustotal yara	3.8.1	—

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