CVE catalog

CVE-2019-5020

yara: CVE-2019-5020

Severity: Medium
Published: Jul 31, 2019, 5:15:11 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.08% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	yara	sid	`4.5.8-1`	fixed
Debian	yara	forky	`4.5.8-1`	fixed
Debian	yara	trixie	`4.5.2-1`	fixed
Debian	yara	bookworm	`4.2.3-4`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	yara	source	sid	`3.9.0-1`	not yet assigned	Not reported	Not reported
Debian	yara	source	forky	`3.9.0-1`	not yet assigned	Not reported	Not reported
Debian	yara	source	trixie	`3.9.0-1`	not yet assigned	Not reported	Not reported
Debian	yara	source	bookworm	`3.9.0-1`	not yet assigned	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libyara10]Fixed
Source package: [yara]
Details (2)
- 4.5.2-1~bpo12+1 · amd64 · bookworm-backports
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · bookworm; dsa · yara · debian · 12
- 4.5.2-1~bpo12+1 · arm64 · bookworm-backports
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · bookworm; dsa · yara · debian · 12
[libyara9]Fixed
Source package: [yara]
Details (2)
- 4.2.3-4 · amd64 · bookworm
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · bookworm; dsa · yara · debian · 12
- 4.2.3-4 · arm64 · bookworm
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · bookworm; dsa · yara · debian · 12
[libyara-dev]Fixed
Source package: [yara]
Details (4)
- 4.2.3-4 · amd64 · bookworm
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · bookworm; dsa · yara · debian · 12
- 4.2.3-4 · arm64 · bookworm
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · bookworm; dsa · yara · debian · 12
- 4.5.2-1~bpo12+1 · amd64 · bookworm-backports
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · bookworm; dsa · yara · debian · 12
- 4.5.2-1~bpo12+1 · arm64 · bookworm-backports
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · bookworm; dsa · yara · debian · 12
[yara]Fixed
Details (4)
- 4.2.3-4 · amd64 · bookworm
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · bookworm; dsa · yara · debian · 12
- 4.2.3-4 · arm64 · bookworm
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · bookworm; dsa · yara · debian · 12
- 4.5.2-1~bpo12+1 · amd64 · bookworm-backports
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · bookworm; dsa · yara · debian · 12
- 4.5.2-1~bpo12+1 · arm64 · bookworm-backports
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · bookworm; dsa · yara · debian · 12
[yara-doc]Fixed
Source package: [yara]
Details (4)
- 4.2.3-4 · all · bookworm
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · bookworm; dsa · yara · debian · 12
- 4.2.3-4 · all · bookworm
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · bookworm; dsa · yara · debian · 12
- 4.5.2-1~bpo12+1 · all · bookworm-backports
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · bookworm; dsa · yara · debian · 12
- 4.5.2-1~bpo12+1 · all · bookworm-backports
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · bookworm; dsa · yara · debian · 12

[Debian 13 (Trixie)]

[libyara10]Fixed
Source package: [yara]
Details (2)
- 4.5.2-1 · amd64 · trixie
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · 13
- 4.5.2-1 · arm64 · trixie
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · 13
[libyara-dev]Fixed
Source package: [yara]
Details (2)
- 4.5.2-1 · amd64 · trixie
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · 13
- 4.5.2-1 · arm64 · trixie
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · 13
[yara]Fixed
Details (2)
- 4.5.2-1 · amd64 · trixie
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · 13
- 4.5.2-1 · arm64 · trixie
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · 13
[yara-doc]Fixed
Source package: [yara]
Details (2)
- 4.5.2-1 · all · trixie
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · 13
- 4.5.2-1 · all · trixie
  Fixed · Fixed: 3.9.0-1
  dsa · yara · debian · 13

Observed: Oct 23, 2026, 5:44:38 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]