CVE-2021-45429 — Classic Buffer Overflow in Yara

CWE-120 — Classic Buffer Overflow8 documents6 sources
Severity
5.5MEDIUMNVD
OSV7.5
EPSS
0.1%
top 76.20%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Virustotal Yara
Timeline
PublishedFeb 4
Latest updateMar 9

Description

A Buffer Overflow vulnerablity exists in VirusTotal YARA git commit: 605b2edf07ed8eb9a2c61ba22eb2e7c362f47ba7 via yr_set_configuration in yara/libyara/libyara.c, which could cause a Denial of Service.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages3 packages

▶Debianvirustotal/yara< 4.2.0-1+2
▶Ubuntuvirustotal/yara< 3.4.0+dfsg-2ubuntu0.1~esm1+2
▶NVDvirustotal/yara4.1.3

🔴Vulnerability Details

4
OSV
yara vulnerabilities↗2026-03-09
▶
GHSA
GHSA-fr63-458q-29q2: A Buffer Overflow vulnerablity exists in VirusTotal YARA git commit: 605b2edf07ed8eb9a2c61ba22eb2e7c362f47ba7 via yr_set_configuration in yara/libyara↗2022-02-10
▶
CVEList
CVE-2021-45429: A Buffer Overflow vulnerablity exists in VirusTotal YARA git commit: 605b2edf07ed8eb9a2c61ba22eb2e7c362f47ba7 via yr_set_configuration in yara/libyara↗2022-02-04
▶
OSV
CVE-2021-45429: A Buffer Overflow vulnerablity exists in VirusTotal YARA git commit: 605b2edf07ed8eb9a2c61ba22eb2e7c362f47ba7 via yr_set_configuration in yara/libyara↗2022-02-04
▶

📋Vendor Advisories

3
Ubuntu
YARA vulnerabilities↗2026-03-09
▶
Ubuntu
YARA vulnerability↗2024-12-18
▶
Debian
CVE-2021-45429: yara - A Buffer Overflow vulnerablity exists in VirusTotal YARA git commit: 605b2edf07e...↗2021
▶
CVE-2021-45429 — Classic Buffer Overflow in Yara | cvebase