CVE catalog
CVE-2021-3402
yara: CVE-2021-3402
- Severity
- High · CVSS 8.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.20% · Oct 25, 2026
An integer overflow and several buffer overflow reads in libyara/modules/macho/macho.c in YARA v4.0.3 and earlier could allow an attacker to either cause denial of service or information disclosure via a malicious Mach-O file. Affects all versions before libyara 4.0.4
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 |
| Ubuntu | yara | pro | 3.9.0-1 | vulnerable |
| Ubuntu | yara | pro | 3.9.0-1ubuntu0.1~esm1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | yara | source | sid | 4.0.4-1 | not yet assigned | Not reported | Not reported |
| Debian | yara | source | forky | 4.0.4-1 | not yet assigned | Not reported | Not reported |
| Debian | yara | source | trixie | 4.0.4-1 | not yet assigned | Not reported | Not reported |
| Debian | yara | source | bookworm | 4.0.4-1 | not yet assigned | Not reported | Not reported |
| Ubuntu | yara | deb | pro | 3.9.0-1ubuntu0.1~esm1 | Not reported | UBUNTU-CVE-2021-3402 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libyara10]Fixed
Source package: [yara]
Details (2)
4.5.2-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
4.0.4-1dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.5.2-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
4.0.4-1dsa · yara · debian · bookworm; dsa · yara · debian · 12
- [libyara9]Fixed
Source package: [yara]
Details (2)
4.2.3-4· amd64 · bookwormFixed · Fixed:
4.0.4-1dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.2.3-4· arm64 · bookwormFixed · Fixed:
4.0.4-1dsa · yara · debian · bookworm; dsa · yara · debian · 12
- [libyara-dev]Fixed
Source package: [yara]
Details (4)
4.2.3-4· amd64 · bookwormFixed · Fixed:
4.0.4-1dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.2.3-4· arm64 · bookwormFixed · Fixed:
4.0.4-1dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.5.2-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
4.0.4-1dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.5.2-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
4.0.4-1dsa · yara · debian · bookworm; dsa · yara · debian · 12
- [yara]Fixed
Details (4)
4.2.3-4· amd64 · bookwormFixed · Fixed:
4.0.4-1dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.2.3-4· arm64 · bookwormFixed · Fixed:
4.0.4-1dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.5.2-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
4.0.4-1dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.5.2-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
4.0.4-1dsa · yara · debian · bookworm; dsa · yara · debian · 12
- [yara-doc]Fixed
Source package: [yara]
Details (4)
4.2.3-4· all · bookwormFixed · Fixed:
4.0.4-1dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.2.3-4· all · bookwormFixed · Fixed:
4.0.4-1dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.5.2-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
4.0.4-1dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.5.2-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
4.0.4-1dsa · yara · debian · bookworm; dsa · yara · debian · 12
[Debian 13 (Trixie)]
- [libyara10]Fixed
Source package: [yara]
Details (2)
4.5.2-1· amd64 · trixieFixed · Fixed:
4.0.4-1dsa · yara · debian · 13
4.5.2-1· arm64 · trixieFixed · Fixed:
4.0.4-1dsa · yara · debian · 13
- [libyara-dev]Fixed
Source package: [yara]
Details (2)
4.5.2-1· amd64 · trixieFixed · Fixed:
4.0.4-1dsa · yara · debian · 13
4.5.2-1· arm64 · trixieFixed · Fixed:
4.0.4-1dsa · yara · debian · 13
- [yara]Fixed
Details (2)
4.5.2-1· amd64 · trixieFixed · Fixed:
4.0.4-1dsa · yara · debian · 13
4.5.2-1· arm64 · trixieFixed · Fixed:
4.0.4-1dsa · yara · debian · 13
- [yara-doc]Fixed
Source package: [yara]
Details (2)
4.5.2-1· all · trixieFixed · Fixed:
4.0.4-1dsa · yara · debian · 13
4.5.2-1· all · trixieFixed · Fixed:
4.0.4-1dsa · yara · debian · 13
Observed:
References
- [https://osv.dev/vulnerability/DEBIAN-CVE-2021-3402]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2021-3402]
- [https://security-tracker.debian.org/tracker/CVE-2021-3402]
- [https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-3402.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]