Vulnerability · Published Feb 4, 2022 · Assigned by mitre
CVE-2021-45429
Medium 5.5
In plain English
A medium-severity security flaw in the yara package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 58% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.8%top 42.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | yara | 4.2.0-r0 | ALPINE-CVE-2021-45429 |
| Alpine:v3.21 | yara | 4.2.0-r0 | ALPINE-CVE-2021-45429 |
| Alpine:v3.22 | yara | 4.2.0-r0 | ALPINE-CVE-2021-45429 |
| Alpine:v3.23 | yara | 4.2.0-r0 | ALPINE-CVE-2021-45429 |
| Alpine:v3.24 | yara | 4.2.0-r0 | ALPINE-CVE-2021-45429 |
| Debian:12 | yara | 4.2.0-1 | DEBIAN-CVE-2021-45429 |
| Debian:13 | yara | 4.2.0-1 | DEBIAN-CVE-2021-45429 |
| Debian:14 | yara | 4.2.0-1 | DEBIAN-CVE-2021-45429 |
Affected products (as reported)
References
- https://github.com/VirusTotal/yara/issues/1616 x_refsource_MISC