CVE-2023-52469

2024-02-2600:00:00

ubuntu.com

use-after-free

kv_parse_power_table

kv_dpm_fini

linux kernel

drivers/amd/pm

vulnerability

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

7.8

Confidence

High

EPSS

Percentile

5.1%

JSON

In the Linux kernel, the following vulnerability has been resolved:
drivers/amd/pm: fix a use-after-free in kv_parse_power_table When ps
allocated by kzalloc equals to NULL, kv_parse_power_table frees
adev->pm.dpm.ps that allocated before. However, after the control flow goes
through the following call chains: kv_parse_power_table |-> kv_dpm_init |->
kv_dpm_sw_init |-> kv_dpm_fini The adev->pm.dpm.ps is used in the for loop
of kv_dpm_fini after its first free in kv_parse_power_table and causes a
use-after-free bug.

Notes

Author	Note
	Priority reason: Use after free but only occurs on allocation failure which is very unlikely for an attacker to be able to influence and hence cause.
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 The mentioned notice was revoked and the state of the fix for linux-oem-6.5 was recovered to the previous state.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
ubuntu18.04noarchlinux< 4.15.0-227.239UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-176.196UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-102.112UNKNOWN
ubuntu23.10noarchlinux< 6.5.0-41.41UNKNOWN
ubuntu16.04noarchlinux< anyUNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1170.183UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1122.132UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1057.63UNKNOWN
ubuntu23.10noarchlinux-aws< 6.5.0-1021.21UNKNOWN
ubuntu14.04noarchlinux-aws< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< 4.15.0-227.239	UNKNOWN
ubuntu	20.04	noarch	linux	< 5.4.0-176.196	UNKNOWN
ubuntu	22.04	noarch	linux	< 5.15.0-102.112	UNKNOWN
ubuntu	23.10	noarch	linux	< 6.5.0-41.41	UNKNOWN
ubuntu	16.04	noarch	linux	< any	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< 4.15.0-1170.183	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1122.132	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1057.63	UNKNOWN
ubuntu	23.10	noarch	linux-aws	< 6.5.0-1021.21	UNKNOWN
ubuntu	14.04	noarch	linux-aws	< any	UNKNOWN