CVE-2018-19974 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...
MediumCVSS 5.5
EPSS 1.3%
- Published
- Updated
- Exploit status
- No public exploit known
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 products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/yara(Debian:12) | < 3.8.1-2 | 3.8.1-2 |
| debian/yara(Debian:13) | < 3.8.1-2 | 3.8.1-2 |
| debian/yara(Debian:14) | < 3.8.1-2 | 3.8.1-2 |
| virustotal yara | = 3.8.1 | No fix listed |
References
- Debian Security Tracker CVE-2018-19974 vendor-advisory
- bnbdr.github.io exploit third-party-advisory
- github.com exploit issue-tracking third-party-advisory
- github.com exploit third-party-advisory
- FEDORA-2019-a00b4760a0 vendor-advisory
- bugs.debian.org issue-tracking