CVEvulnerability
CVE-2018-19974
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2018-12-17
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 5.5 MEDIUM — CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-908
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).
Affected configurations
• virustotal yara 3.8.1
Related
Weakness · CWE (1)
- CWE-908 Use of Uninitialized Resource weakness
References
- https://bnbdr.github.io/posts/extracheese/ Exploit, Third Party Advisory
- https://github.com/VirusTotal/yara/issues/999 Exploit, Issue Tracking, Third Party Advisory
- https://github.com/bnbdr/swisscheese/ Exploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DFFXDAMP6GJ337LIOTVF5I4T6QGMN3ZR/ lists.fedoraproject.org
- https://bnbdr.github.io/posts/extracheese/ Exploit, Third Party Advisory
- https://github.com/VirusTotal/yara/issues/999 Exploit, Issue Tracking, Third Party Advisory
- https://github.com/bnbdr/swisscheese/ Exploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DFFXDAMP6GJ337LIOTVF5I4T6QGMN3ZR/ lists.fedoraproject.org