CVE-2018-12034
CVE-2018-12034 is a high-severity vulnerability in Virustotal Yara with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 1% (66th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Virustotal Yara
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2018-12034?
- CVE-2018-12034 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-12034 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-12034?
- CVE-2018-12034 affects Virustotal Yara. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-12034?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2018-12034 published?
- CVE-2018-12034 was published on 2018-06-15 and last updated on 2026-06-17.
References
- https://bnbdr.github.io/posts/swisscheese/
- https://github.com/VirusTotal/yara/issues/891
- https://github.com/bnbdr/swisscheese
Affected products (1)
- cpe:2.3:a:virustotal:yara:*:*:*:*:*:*:*:*
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