PT-2022-6836 · Linux · Linux Kernel

Dhananjay Arunesh · Published 2022-08-22 · Updated 2023-08-23 · CVE-2023-4394

Positive Technologies (AI Summary)

CVSS v3.1

6.7

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux Kernel (affected versions not specified)

Description A use-after-free flaw was found in the btrfs get dev args from path() function in the fs/btrfs/volumes.c file of the btrfs file system in the Linux Kernel. This issue is related to the use of previously freed memory. Exploitation of this flaw may allow a local attacker with special privileges to cause a system crash or leak internal kernel information, potentially impacting the confidentiality, integrity, and availability of protected information.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Resource Exhaustion

Use After Free

Weakness Enumeration

CWE-400

CWE-416

Related Identifiers

AZL-27970

BDU:2023-04898

CVE-2023-4394

Affected Products

Linux Kernel

References · 19

• https://osv.dev/vulnerability/UBUNTU-CVE-2023-4394 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-4394 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-4394 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2219263 · Patch
• https://ubuntu.com/security/CVE-2023-4394 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-4394 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-4394 · Security Note
• https://osv.dev/vulnerability/AZL-27970 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-04898 · Security Note
• https://patchwork.kernel.org/project/linux-btrfs/patch/[e-mail] · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-4394 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4394 · Note
• https://bugzilla.suse.com/show_bug.cgi?id=1214352 · Note
• https://t.me/cibsecurity/68752 · Telegram Post
• https://access.redhat.com/security/cve/CVE-2023-4394 · Note