CVE-2017-5923
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2017-5923
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-5923.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2017-5923
- Downstream
- Published
- 2017-04-03T05:59:00Z
- Modified
- 2025-10-14T16:12:43.269045Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
Affected packages
Git / github.com/virustotal/yara
Affected ranges
- Type
- GIT
- Repo
- https://github.com/virustotal/yara
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
Database specific
{
"vanir_signatures": [
{
"signature_version": "v1",
"signature_type": "Function",
"target": {
"file": "libyara/grammar.c",
"function": "yyparse"
},
"deprecated": false,
"digest": {
"length": 46746.0,
"function_hash": "255817588264694491270603386259301270595"
},
"id": "CVE-2017-5923-a3b3f538",
"source": "https://github.com/virustotal/yara/commit/ab906da53ff2a68c6fd6d1fa73f2b7c7bf0bc636"
},
{
"signature_version": "v1",
"signature_type": "Line",
"target": {
"file": "libyara/grammar.c"
},
"deprecated": false,
"digest": {
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],
"threshold": 0.9
},
"id": "CVE-2017-5923-adc57485",
"source": "https://github.com/virustotal/yara/commit/ab906da53ff2a68c6fd6d1fa73f2b7c7bf0bc636"
}
]
}