libyara/grammar.y in YARA 3.5.0 allows remote attackers to cause a denial of service (use-after-free and application crash) via a crafted rule that is mishandled in the yr_compiler_destroy function
Published Apr 3, 2017
7.5
HIGHCVSS 3.0
EPSS 1.59%
Description
libyara/grammar.y in YARA 3.5.0 allows remote attackers to cause a denial of service (use-after-free and application crash) via a crafted rule that is mishandled in the yr_compiler_destroy function.
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
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.59% (0.01587) | 74.72th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.60% (0.01601) | 72.56th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.58% (0.00580) | 66.32th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.42% (0.02415) | 75.13th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.62% (0.00620) | 79.06th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.62% (0.00620) | 78.17th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.62% (0.00620) | 75.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.30% (0.01300) | 31.12th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.30% (0.01300) | 0.00th | v1 |
References (3)
- http://www.securityfocus.com/bid/98075 vdb-entryx_refsource_BID
- https://github.com/VirusTotal/yara/commit/7f02eca670f29c00a1d2c305e96febae6ce5d37b x_refsource_CONFIRMPatchVendor Advisory
- https://github.com/VirusTotal/yara/issues/593 x_refsource_CONFIRMExploitIssue TrackingPatch
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/98075 | vdb-entryx_refsource_BID | |
| https://github.com/VirusTotal/yara/commit/7f02eca670f29c00a1d2c305e96febae6ce5d37b | x_refsource_CONFIRMPatchVendor Advisory | |
| https://github.com/VirusTotal/yara/issues/593 | x_refsource_CONFIRMExploitIssue TrackingPatch |
Change history (0)
No recorded changes yet.