Vulnerability in Virustotal Yara
CVE-2019-5020
An exploitable denial of service vulnerability exists in the object lookup functionality of Yara 3.8.1. A specially crafted binary file can cause a negative value to be read to satisfy an assert, resulting in Denial of Service. An attacker can create a malicious binary to trigger this vulnerability.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.011 (63.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Virustotal Yara — versions 3.8.1
- Yara Object — versions Yara 3.8.1
Weakness classification (CWE)
References
- talosintelligence.com/vulnerability_reports/TALOS-2019-0781 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-5020?
- CVE-2019-5020 is a medium-severity vulnerability in Virustotal Yara, classified under Reachable Assertion. CVSS score: 5.5/10. Published 2019-07-31.
- How severe is CVE-2019-5020?
- Medium severity. CVSS v3 base score is 5.5 out of 10.