PT-2023-4425 · Linux+9 · Linux Kernel+9
Hui Peng
+2
·
Published
2023-06-29
·
Updated
2024-08-26
·
CVE-2023-40283
CVSS v3.1
7.8
High
| 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 versions prior to 6.4.10
Description
The issue is related to the
l2cap sock release function in the Linux kernel, specifically in the net/bluetooth/l2cap sock.c file. It involves a use-after-free error because the children of an sk are mishandled. This could potentially allow an attacker to cause a denial of service or have other impacts.Recommendations
For Linux kernel versions prior to 6.4.10, update to version 6.4.10 or later to resolve the issue. As a temporary workaround, consider restricting access to the
l2cap sock release function in net/bluetooth/l2cap sock.c until a patch is available.Fix
DoS
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Linuxmint
Linux Kernel
Red Hat
Red Os
Suse
Ubuntu