Vulnerability Monitor

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CVE-2017-5924

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

2017-04-03T05:59:00.737

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

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

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-416

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	virustotal	yara	3.5.0	Yes

References

http://www.securityfocus.com/bid/98075 ([email protected])
https://github.com/VirusTotal/yara/commit/7f02eca670f29c00a1d2c305e96febae6ce5d37b Patch, Vendor Advisory ([email protected])
https://github.com/VirusTotal/yara/issues/593 Exploit, Issue Tracking, Patch ([email protected])
http://www.securityfocus.com/bid/98075 (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/VirusTotal/yara/commit/7f02eca670f29c00a1d2c305e96febae6ce5d37b Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/VirusTotal/yara/issues/593 Exploit, Issue Tracking, Patch (af854a3a-2127-422b-91ae-364da2661108)