VulnerabilityModified
CVE-2018-12034
In YARA 3.7.1 and prior, parsing a specially crafted compiled rule file can cause an out of bounds read vulnerability in yr_execute_code in libyara/exec.c.
HIGH 7.8EPSS 1.28%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.28%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In YARA 3.7.1 and prior, parsing a specially crafted compiled rule file can cause an out of bounds read vulnerability in yr_execute_code in libyara/exec.c.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.28% probability · 68th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- virustotal/yara
- Source
- cve@mitre.org
References
- https://bnbdr.github.io/posts/swisscheese/Exploit, Third Party Advisory
- https://github.com/VirusTotal/yara/issues/891Issue Tracking, Patch, Third Party Advisory
- https://github.com/bnbdr/swisscheeseExploit, Third Party Advisory
- https://bnbdr.github.io/posts/swisscheese/Exploit, Third Party Advisory
- https://github.com/VirusTotal/yara/issues/891Issue Tracking, Patch, Third Party Advisory
- https://github.com/bnbdr/swisscheeseExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.