PT-2025-13323 · Linux+4 · Linux Kernel+4

Published 2023-02-02 · Updated 2025-09-29 · CVE-2023-52977

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description A memory leak has been identified in the Linux kernel, specifically in the ovs flow cmd new function. This issue arises when an allocation of a key fails, and the new flow object is not freed, resulting in a memory leak. The leak was reported by Syzkaller, and the patch resolves this issue by rearranging the goto labels to reflect the order of object allocations and adding appropriate goto statements on the error paths.

Recommendations To resolve this issue, apply the patch that rearranges the goto labels and adds goto statements on the error paths. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

ALSA-2025_16880

BDU:2025-06245

CESA-2023_7077

CVE-2023-52977

RHSA-2023:6583

RHSA-2023:7077

RHSA-2023_6583

RHSA-2023_7077

Affected Products

Astra Linux

Centos

Linux Kernel

Red Hat

Red Os

References · 23

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52977.json · Exploit
• https://git.kernel.org/stable/c/1ac653cf886cdfc082708c82dc6ac6115cebd2ee · Patch
• https://bdu.fstec.ru/vul/2025-06245 · Security Note
• https://git.kernel.org/stable/c/70154489f531587996f3e9d7cceeee65cff0001d · Patch
• https://ubuntu.com/security/CVE-2023-52977 · Vendor Advisory
• https://git.kernel.org/stable/c/f423c2efd51d7eb1d143c2be7eea233241d9bbbf · Patch
• https://git.kernel.org/stable/c/0c598aed445eb45b0ee7ba405f7ece99ee349c30 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-52977 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-52977 · Security Note
• https://cve.org/CVERecord?id=CVE-2023-52977 · Security Note
• https://git.kernel.org/stable/c/ed6c5e8caf55778500202775167e8ccdb1a030cb · Patch
• https://security-tracker.debian.org/tracker/CVE-2023-52977 · Vendor Advisory
• https://git.kernel.org/stable/c/70d40674a549d498bd63d5432acf46205da1534b · Patch
• https://git.kernel.org/stable/c/af4e720bc00a2653f7b9df21755b9978b3d7f386 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-52977 · Vendor Advisory