PT-2017-18938 · Yara · Yara

Fumfel · Published 2017-06-06 · Updated 2026-03-09 · CVE-2017-9465

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions YARA version 3.6.1

Description The issue allows remote attackers to cause a denial of service or obtain sensitive information from process memory via a crafted file. This is due to the mishandling of the file in the yr re fast exec function in libyara/re.c and the yr scan match callback function in libyara/scan.c, which can lead to a buffer over-read and application crash.

Recommendations For YARA version 3.6.1, consider restricting the use of the yr arena write data function until a patch is available. As a temporary workaround, avoid using crafted files that may trigger the buffer over-read and application crash. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

DoS

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2017-9465

USN-8080-1

Affected Products

Yara

References · 27

• 🔥 https://github.com/VirusTotal/yara/issues/678 · Exploit
• https://github.com/VirusTotal/yara/commit/992480c30f75943e9cd6245bb2015c7737f9b661 · Patch
• https://ubuntu.com/security/notices/USN-8080-1 · 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://osv.dev/vulnerability/CVE-2017-9465 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9304 · Vendor Advisory
• 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
• https://ubuntu.com/security/CVE-2019-19648 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-45429 · Vendor Advisory