CVE-2019-5020 json
An exploitable denial of service vulnerability exists in the object lookup functionality of Yara 3.8.1.
published 2019-07-31 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-14627
- cvss
- 6.5
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 65%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- yara Debian 14, Debian 13, Debian 12 3.9.0-1
debian advisories DEBIAN-CVE-2019-5020
Exploit prediction
1.08% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- talosintelligence.com https://talosintelligence.com/vulnerability_reports/TALOS-2019-0781 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 6.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
Affected products
- n/a Yara Object
Classification
References
-
talosintelligence.com
/vulnerability_reports/TALOS-2019-0781
exploit, third-party-advisory
Sources
- CVE List CVE-2019-5020
- NVD CVE-2019-5020
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