PT-2023-27678 · Virustotal+1 · Yara+1

Shinibufao · Published 2023-08-28 · Updated 2023-09-21 · CVE-2023-40857

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions VirusTotal yara version 4.3.2

Description The issue allows a remote attacker to execute arbitrary code via the yr execute cod function in the exe.c component. This is a Buffer Overflow vulnerability.

Recommendations For VirusTotal yara version 4.3.2, as a temporary workaround, consider disabling the yr execute cod function until a patch is available. Restrict access to the exe.c component to minimize the risk of exploitation.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

ALT-PU-2023-5718

CVE-2023-40857

Affected Products

Alt Linux

Yara

References · 11

• 🔥 https://github.com/VirusTotal/yara/issues/1945 · Exploit
• https://cve.org/CVERecord?id=CVE-2023-40857 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-40857 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-40857 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-40857 · Security Note
• https://ubuntu.com/security/CVE-2023-40857 · Vendor Advisory
• https://twitter.com/CVEnew/status/1696272511468781915 · Twitter Post
• https://t.me/cibsecurity/69334 · Telegram Post
• https://t.me/cvenotify/57512 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1696324357264384261 · Twitter Post
• https://t.me/cvenotify/57473 · Telegram Post