CVE-2018-19975

Description

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.

References

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

https://github.com/bnbdr/swisscheese/

https://github.com/VirusTotal/yara/issues/999

https://bnbdr.github.io/posts/extracheese/

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3