PT-2025-37901 · Linux+3 · Linux Kernel+3

Published 2023-04-02 · Updated 2025-10-31 · CVE-2023-53296

Positive Technologies (AI Summary)

CVSS v2.0

6.0

Medium

Base vector

AV:L/AC:H/Au:S/C:C/I:C/A:C

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

Description A flaw exists in the Linux kernel’s SCTP (Stream Control Transmission Protocol) implementation. Specifically, the issue arises from a corner case where the association (asoc) out stream count may change after wait for sndbuf. This can lead to a crash when a thread waiting for a send buffer is awakened and attempts to send a message on a non-existing stream. The vulnerability occurs when a client initiates a connection, and another thread concurrently sends messages with a stream number that becomes invalid after processing an INIT ACK.

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

Exploit

Improper Resource Release

NULL Pointer Dereference

Weakness Enumeration

CWE-404

CWE-476

Related Identifiers

ALSA-2025_16880

BDU:2026-02514

CESA-2023_7077

CVE-2023-53296

OESA-2025-2553

RHSA-2023:6583

RHSA-2023:7077

RHSA-2023_6583

RHSA-2023_7077

RHSA-2024:0575

Affected Products

Astra Linux

Centos

Linux Kernel

Red Hat

References · 57

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53296.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2024-53168 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53271 · Security Note
• https://git.kernel.org/stable/c/a615e7270318fa0b98bf1ff38daf6cf52d840312 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-53265 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-38352 · Security Note
• https://git.kernel.org/stable/c/d2128636b303aa9cf065055402ee6697409a8837 · Patch
• https://git.kernel.org/stable/c/667eb99cf7c15fe5b0ecefe75cf658e20ef20c9f · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-50494 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53453 · Security Note
• https://cve.org/CVERecord?id=CVE-2023-53296 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53296 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53515 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-38729 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53372 · Security Note