CVE-2024-42247

MEDIUM

Linux Kernel - Denial of Service via Unaligned Memory Access in WireGuard AllowedIPs

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: wireguard: allowedips: avoid unaligned 64-bit memory accesses On the parisc platform, the kernel issues kernel warnings because swap_endian() tries to load a 128-bit IPv6 address from an unaligned memory location: Kernel: unaligned access to 0x55f4688c in wg_allowedips_insert_v6+0x2c/0x80 [wireguard] (iir 0xf3010df) Kernel: unaligned access to 0x55f46884 in wg_allowedips_insert_v6+0x38/0x80 [wireguard] (iir 0xf2010dc) Avoid such unaligned memory accesses by instead using the get_unaligned_be64() helper macro. [Jason: replace src[8] in original patch with src+8]

Scores

CVSS v3 5.5
EPSS 0.0023
EPSS Percentile 13.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-770
Status published
Products (20)
linux/Kernel 5.11.0 - 5.15.163linux
linux/Kernel 5.16.0 - 6.1.100linux
linux/Kernel 5.6.0 - 5.10.222linux
linux/Kernel 6.2.0 - 6.6.41linux
linux/Kernel 6.7.0 - 6.9.10linux
Linux/Linux < 5.6
Linux/Linux 5.10.222 - 5.10.*
Linux/Linux 5.15.163 - 5.15.*
Linux/Linux 5.6
Linux/Linux 6.1.100 - 6.1.*
... and 10 more
Published Aug 07, 2024
Tracked Since Feb 18, 2026