CVE-2018-19975

In YARA 3.8.1, bytecode in a specially crafted compiled rule can read data from any arbitrary address in memory, in libyara/exec.c. Specifically, OP_COUNT can read a DWORD.

Score

CVSS 3.0 5.5 Medium

Status

Modified - cve@mitre.org

Published

2018-12-17

Last modified

2024-08-05

Weaknesses

CWE-125

Affected products

• Yara (Virustotal)

References

• https://bnbdr.github.io/posts/extracheese/
• https://github.com/VirusTotal/yara/issues/999
• https://github.com/bnbdr/swisscheese/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DFFXDAMP6GJ337LIOTVF5I…