PT-2017-18631 · Yara · Yara

Fumfel · Published 2017-05-14 · Updated 2026-03-09 · CVE-2017-8929

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions YARA version 3.5.0

Description The issue allows remote attackers to cause a denial of service, resulting in a use-after-free and application crash, via a crafted rule. This is due to a problem in the sized string cmp function in libyara/sizedstr.c.

Recommendations For YARA version 3.5.0, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2017-8929

USN-8080-1

Affected Products

Yara

References · 27

• https://github.com/VirusTotal/yara/commit/053e67e3ec81cc9268ce30eaf0d6663d8639ed1e · Patch
• https://github.com/VirusTotal/yara/issues/658 · Patch
• https://ubuntu.com/security/notices/USN-8080-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-8929 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-8929 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-11328 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-5924 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-12035 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-3402 · Vendor Advisory
• https://osv.dev/vulnerability/USN-8080-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9304 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-8929 · Security Note
• https://ubuntu.com/security/CVE-2018-19975 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9438 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-19974 · Vendor Advisory