VDB
CVE-2018-19974
CVE-2018-19974
PUBLISHED
CVSS 5.5 MEDIUM
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).
EPSS 1.26% · 67.8th percentile
Risk Scores
CVSS 3.0
5.5
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS Score
1.26%
67.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | yara | 0, 3.6.3+dfsg-1ubuntu1, 3.7.1-1ubuntu2 |
| Ubuntu:16.04:LTS | yara | 3.4.0+dfsg-2build1, 0, 3.4.0+dfsg-2 |
Timeline
- Dec 17, 2018 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 25, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 28, 2021 EPSS Score
- Mar 1, 2022 EPSS Score
- May 3, 2022 EPSS Score
- Jul 5, 2022 EPSS Score
- Nov 8, 2022 EPSS Score
- Jan 10, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2018-19974 third-party-advisory
- https://github.com/VirusTotal/yara/issues/999 third-party-advisory
- https://bnbdr.github.io/posts/extracheese/ third-party-advisory
- https://github.com/bnbdr/swisscheese/ third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2018-19974 third-party-advisory