7.5high
CVE-2017-5923
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)…
Published 9 y ago · modified 4 mo ago · JSON
CVSS
7.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.6%
percentile 76%
Public exploits
0
none known
Summary
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.
Exploit prediction (EPSS)
1.63% probability of exploitation in the next 30 days, higher than 76% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Classification
- Weakness
- CWE-125 Out-of-bounds Read
References
- github.com /VirusTotal/yara/issues/597 · x_refsource_CONFIRM, x_transferred
- securityfocus.com /bid/98080 · vdb-entry, x_refsource_BID, x_transferred
- github.com /VirusTotal/yara/commit/ab906da53ff2a68c6fd6d1fa73f2b7c7bf0bc636 · x_refsource_CONFIRM, x_transferred
Sources
- CVE List: CVE-2017-5923
- NVD: CVE-2017-5923
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