HIGH
The sized_string_cmp function in libyara/sizedstr.c in YARA 3.5.0 allows remote attackers to cause a denial of service (use-after-free and application crash) via a crafted rule
Published May 14, 2017
7.5
HIGHCVSS 3.0
EPSS 1.81%
Description
The sized_string_cmp function in libyara/sizedstr.c in YARA 3.5.0 allows remote attackers to cause a denial of service (use-after-free and application crash) via a crafted rule.
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.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.81% 0.01811
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01811
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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.81% (0.01811) | 77.84th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.81% (0.01811) | 77.66th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.18% (0.00177) | 55.24th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.18% (0.00177) | 54.24th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.16% (0.00163) | 51.91th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.15% (0.00148) | 49.50th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.21% (0.00209) | 58.16th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.14% (0.00145) | 48.53th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.98% (0.00976) | 26.54th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.98% (0.00976) | 0.00th | v1 |
Weaknesses (1)
References (2)
- https://github.com/VirusTotal/yara/commit/053e67e3ec81cc9268ce30eaf0d6663d8639ed1e x_refsource_CONFIRMPatch
- https://github.com/VirusTotal/yara/issues/658 x_refsource_CONFIRMIssue TrackingPatch
| Link | Providers | Tags |
|---|---|---|
| https://github.com/VirusTotal/yara/commit/053e67e3ec81cc9268ce30eaf0d6663d8639ed1e | x_refsource_CONFIRMPatch | |
| https://github.com/VirusTotal/yara/issues/658 | x_refsource_CONFIRMIssue TrackingPatch |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published May 14, 2017
Updated Sep 16, 2024
Reserved May 14, 2017
Link CVE-2017-8929
CISA Vulnrichment
Updated n/a