CVE-2017-8929

CVSS V2 Medium 5 CVSS V3 High 7.5

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.

Overview

CVE ID
CVE-2017-8929

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2017-05-14T22:29:00

Last Modified Date
2017-05-23T18:22:03

Weakness Enumerations

CWE	URL
CWE-416	http://cwe.mitre.org/data/definitions/416.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:virustotal:yara:3.5.0:::::::*	1	OR

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
PARTIAL

Base Score
5

Severity
MEDIUM

Exploitability Score
10

Impact Score
2.9

CVSS Version 3

Version
3.0

Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
7.5

Base Severity
HIGH

Exploitability Score
3.9

Impact Score
3.6

References

Reference URL	Reference Tags
https://github.com/VirusTotal/yara/issues/658	Issue Tracking Patch
https://github.com/VirusTotal/yara/commit/053e67e3ec81cc9268ce30eaf0d6663d8639ed1e	Patch

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2017-8929
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8929

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 09:42:47				Added to TrackCVE
2022-12-02 16:56:29	2017-05-14T22:29Z	2017-05-14T22:29:00	CVE Published Date	updated
2022-12-02 16:56:29		2017-05-23T18:22:03	CVE Modified Date	updated
2022-12-02 16:56:29		Analyzed	Vulnerability Status	updated