CVE-2023-52494

2024-03-1100:00:00

ubuntu.com

linux kernel

vulnerability

cve-2023-52494

unaligned

event ring

bus

mhi

host

AI Score

6.3

Confidence

Low

EPSS

Percentile

15.5%

JSON

In the Linux kernel, the following vulnerability has been resolved: bus:
mhi: host: Add alignment check for event ring read pointer Though we do
check the event ring read pointer by “is_valid_ring_ptr” to make sure it is
in the buffer range, but there is another risk the pointer may be not
aligned. Since we are expecting event ring elements are 128 bits(struct
mhi_ring_element) aligned, an unaligned read pointer could lead to multiple
issues like DoS or ring buffer memory corruption. So add a alignment check
for event ring read pointer.

Notes

Author	Note
rodrigo-zaiden	USN-6765-1 for linux-oem-6.5 wrongly stated that this CVE was fixed in version 6.5.0-1022.23. The mentioned notice was revoked and the state of the fix for linux-oem-6.5 was recovered to the previous state.

OSVersionArchitecturePackageVersionFilename
ubuntu22.04noarchlinux< 5.15.0-106.116UNKNOWN
ubuntu23.10noarchlinux< 6.5.0-41.41UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1061.67UNKNOWN
ubuntu23.10noarchlinux-aws< 6.5.0-1021.21UNKNOWN
ubuntu20.04noarchlinux-aws-5.15< 5.15.0-1061.67~20.04.1UNKNOWN
ubuntu22.04noarchlinux-aws-6.5< anyUNKNOWN
ubuntu22.04noarchlinux-azure< 5.15.0-1063.72UNKNOWN
ubuntu23.10noarchlinux-azure< 6.5.0-1022.23UNKNOWN
ubuntu20.04noarchlinux-azure-5.15< 5.15.0-1063.72~20.04.1UNKNOWN
ubuntu22.04noarchlinux-azure-6.5< 6.5.0-1022.23~22.04.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	22.04	noarch	linux	< 5.15.0-106.116	UNKNOWN
ubuntu	23.10	noarch	linux	< 6.5.0-41.41	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1061.67	UNKNOWN
ubuntu	23.10	noarch	linux-aws	< 6.5.0-1021.21	UNKNOWN
ubuntu	20.04	noarch	linux-aws-5.15	< 5.15.0-1061.67~20.04.1	UNKNOWN
ubuntu	22.04	noarch	linux-aws-6.5	< any	UNKNOWN
ubuntu	22.04	noarch	linux-azure	< 5.15.0-1063.72	UNKNOWN
ubuntu	23.10	noarch	linux-azure	< 6.5.0-1022.23	UNKNOWN
ubuntu	20.04	noarch	linux-azure-5.15	< 5.15.0-1063.72~20.04.1	UNKNOWN
ubuntu	22.04	noarch	linux-azure-6.5	< 6.5.0-1022.23~22.04.1	UNKNOWN