PT-2023-9479 · Linux+5 · Linux Kernel+5

Zheng Wang · Published 2023-10-06 · Updated 2025-09-29 · CVE-2023-52509

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/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 The issue is related to a use-after-free problem in the ravb tx timeout work() function. This occurs when ravb stop() fails to call cancel work sync(), allowing ravb tx timeout work() to use freed memory after ravb remove() has been called. The vulnerability can be exploited to potentially elevate privileges.

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

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALSA-2025_16880

ALT-PU-2023-6736

BDU:2024-07832

CVE-2023-52509

OESA-2024-1392

OESA-2024-1393

OPENSUSE-SU-2024_1321-1

OPENSUSE-SU-2024_1322-1

OPENSUSE-SU-2024_1322-2

OPENSUSE-SU-2024_1332-1

OPENSUSE-SU-2024_1332-2

OPENSUSE-SU-2024_1466-1

OPENSUSE-SU-2024_1480-1

OPENSUSE-SU-2024_1489-1

OPENSUSE-SU-2024_1490-1

SUSE-SU-2024:1320-1

SUSE-SU-2024:1321-1

SUSE-SU-2024:1454-1

SUSE-SU-2024:1465-1

SUSE-SU-2024:1466-1

SUSE-SU-2024:1480-1

SUSE-SU-2024:1489-1

SUSE-SU-2024:1490-1

SUSE-SU-2024:1643-1

SUSE-SU-2024:1646-1

SUSE-SU-2024:1870-1

USN-7183-1

USN-7184-1

USN-7185-1

USN-7185-2

Affected Products

Alt Linux

Astra Linux

Linux Kernel

Red Os

Suse

Ubuntu

References · 1008

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52509.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-46934 · Security Note
• https://git.kernel.org/stable/c/6f6fa8061f756aedb93af12a8a5d3cf659127965 · Patch
• https://ubuntu.com/security/CVE-2024-45021 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-40959 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-46935 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-52502 · Security Note
• https://ubuntu.com/security/CVE-2020-12352 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52594 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-36780 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2023-52509 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-52443 · Security Note
• https://ubuntu.com/security/CVE-2023-52486 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-52509 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:1490-1 · Vendor Advisory