linux-cve-announce - CVE-2024-35965: Bluetooth: L2CAP: Fix not validating setsockopt user input

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <2024052021-CVE-2024-35965-19f1@gregkh>
Date: Mon, 20 May 2024 11:42:30 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-35965: Bluetooth: L2CAP: Fix not validating setsockopt user input

Description
===========

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: L2CAP: Fix not validating setsockopt user input

Check user input length before copying data.

The Linux kernel CVE team has assigned CVE-2024-35965 to this issue.


Affected and fixed versions
===========================

	Issue introduced in 2.6.39 with commit 33575df7be67 and fixed in 6.1.87 with commit 9d42f3733912
	Issue introduced in 2.6.39 with commit 33575df7be67 and fixed in 6.8.7 with commit 8ee0c132a61d
	Issue introduced in 2.6.39 with commit 33575df7be67 and fixed in 6.9 with commit 4f3951242ace

Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.

Unaffected versions might change over time as fixes are backported to
older supported kernel versions.  The official CVE entry at
	https://cve.org/CVERecord/?id=CVE-2024-35965
will be updated if fixes are backported, please check that for the most
up to date information about this issue.


Affected files
==============

The file(s) affected by this issue are:
	net/bluetooth/l2cap_sock.c


Mitigation
==========

The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes.  Individual
changes are never tested alone, but rather are part of a larger kernel
release.  Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all.  If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
	https://git.kernel.org/stable/c/9d42f373391211c7c8af66a3a316533a32b8a607
	https://git.kernel.org/stable/c/8ee0c132a61df9723813c40e742dc5321824daa9
	https://git.kernel.org/stable/c/4f3951242ace5efc7131932e2e01e6ac6baed846