libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of service (stack consumption) via a crafted rule (involving hex strings) that is mishandled in the _yr_re_emit function, a different vulnerability than CVE-2017-9304
Published Jun 5, 2017
7.5
HIGHCVSS 3.0
EPSS 2.55%
Description
libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of service (stack consumption) via a crafted rule (involving hex strings) that is mishandled in the _yr_re_emit function, a different vulnerability than CVE-2017-9304.
Affected products
No data.
- 3.5.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.55% (0.02549) | 84.46th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.57% (0.02570) | 83.08th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.77% (0.00772) | 81.49th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.77% (0.00772) | 80.70th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.77% (0.00774) | 78.52th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.62% (0.01623) | 33.90th | v5 (v2026.06.15) |
| May 7, 2021 | 1.62% (0.01623) | 0.00th | v1 |
| May 5, 2021 | 1.30% (0.01300) | 0.00th | v1 |
| Apr 14, 2021 | 0.98% (0.00976) | 0.00th | v1 |
References (4)
- https://github.com/VirusTotal/yara/commit/10e8bd3071677dd1fa76beeef4bc2fc427cea5e7 x_refsource_CONFIRMPatch
- https://github.com/VirusTotal/yara/issues/674 x_refsource_CONFIRMIssue TrackingPatch
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FKNXSH5ERG6NELTXCYVJLUPJJJ2TNEBD/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XXM224OLGI6KAOROLDPPGGCZ2OQVQ6HH/ vendor-advisoryx_refsource_FEDORA
| Link | Providers | Tags |
|---|---|---|
| https://github.com/VirusTotal/yara/commit/10e8bd3071677dd1fa76beeef4bc2fc427cea5e7 | x_refsource_CONFIRMPatch | |
| https://github.com/VirusTotal/yara/issues/674 | x_refsource_CONFIRMIssue TrackingPatch | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FKNXSH5ERG6NELTXCYVJLUPJJJ2TNEBD/ | vendor-advisoryx_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XXM224OLGI6KAOROLDPPGGCZ2OQVQ6HH/ | vendor-advisoryx_refsource_FEDORA |
Change history (0)
No recorded changes yet.