CVE catalog
CVE-2017-5923
yara: CVE-2017-5923
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.63% · Oct 25, 2026
libyara/grammar.y in YARA 3.5.0 allows remote attackers to cause a denial of service (heap-based out-of-bounds read and application crash) via a crafted rule that is mishandled in the yara_yyparse function.
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 | 3.4.0+dfsg-2 | vulnerable |
| Ubuntu | yara | pro | 3.4.0+dfsg-2build1 | vulnerable |
| Ubuntu | yara | pro | 3.4.0+dfsg-2ubuntu0.1~esm1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | yara | source | sid | 3.5.0+dfsg-9 | not yet assigned | Not reported | [859821] |
| Debian | yara | source | forky | 3.5.0+dfsg-9 | not yet assigned | Not reported | [859821] |
| Debian | yara | source | trixie | 3.5.0+dfsg-9 | not yet assigned | Not reported | [859821] |
| Debian | yara | source | bookworm | 3.5.0+dfsg-9 | not yet assigned | Not reported | [859821] |
| Ubuntu | yara | deb | pro | 3.4.0+dfsg-2ubuntu0.1~esm1 | Not reported | UBUNTU-CVE-2017-5923 | 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:
3.5.0+dfsg-9dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.5.2-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · bookworm; dsa · yara · debian · 12
- [libyara9]Fixed
Source package: [yara]
Details (2)
4.2.3-4· amd64 · bookwormFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.2.3-4· arm64 · bookwormFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · bookworm; dsa · yara · debian · 12
- [libyara-dev]Fixed
Source package: [yara]
Details (4)
4.2.3-4· amd64 · bookwormFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.2.3-4· arm64 · bookwormFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.5.2-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.5.2-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · bookworm; dsa · yara · debian · 12
- [yara]Fixed
Details (4)
4.2.3-4· amd64 · bookwormFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.2.3-4· arm64 · bookwormFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.5.2-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.5.2-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · bookworm; dsa · yara · debian · 12
- [yara-doc]Fixed
Source package: [yara]
Details (4)
4.2.3-4· all · bookwormFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.2.3-4· all · bookwormFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.5.2-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · bookworm; dsa · yara · debian · 12
4.5.2-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · bookworm; dsa · yara · debian · 12
[Debian 13 (Trixie)]
- [libyara10]Fixed
Source package: [yara]
Details (2)
4.5.2-1· amd64 · trixieFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · 13
4.5.2-1· arm64 · trixieFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · 13
- [libyara-dev]Fixed
Source package: [yara]
Details (2)
4.5.2-1· amd64 · trixieFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · 13
4.5.2-1· arm64 · trixieFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · 13
- [yara]Fixed
Details (2)
4.5.2-1· amd64 · trixieFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · 13
4.5.2-1· arm64 · trixieFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · 13
- [yara-doc]Fixed
Source package: [yara]
Details (2)
4.5.2-1· all · trixieFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · 13
4.5.2-1· all · trixieFixed · Fixed:
3.5.0+dfsg-9dsa · yara · debian · 13
Observed: