CVE-2023-1077

2023-03-2700:00:00

ubuntu.com

linux kernel

type confused entry

memory corruption

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%

JSON

In the Linux kernel, pick_next_rt_entity() may return a type confused
entry, not detected by the BUG_ON condition, as the confused entry will not
be NULL, but list_head.The buggy error condition would lead to a type
confused entry with the list head,which would then be used as a type
confused sched_rt_entity,causing memory corruption.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchlinux< 5.4.0-152.169UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-75.82UNKNOWN
ubuntu22.10noarchlinux< 5.19.0-45.46UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1104.112UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1038.43UNKNOWN
ubuntu22.10noarchlinux-aws< 5.19.0-1027.28UNKNOWN
ubuntu23.04noarchlinux-aws< 6.2.0-1003.3UNKNOWN
ubuntu20.04noarchlinux-aws-5.15< 5.15.0-1038.43~20.04.1UNKNOWN
ubuntu18.04noarchlinux-aws-5.4< anyUNKNOWN
ubuntu20.04noarchlinux-azure< 5.4.0-1110.116UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	linux	< 5.4.0-152.169	UNKNOWN
ubuntu	22.04	noarch	linux	< 5.15.0-75.82	UNKNOWN
ubuntu	22.10	noarch	linux	< 5.19.0-45.46	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1104.112	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1038.43	UNKNOWN
ubuntu	22.10	noarch	linux-aws	< 5.19.0-1027.28	UNKNOWN
ubuntu	23.04	noarch	linux-aws	< 6.2.0-1003.3	UNKNOWN
ubuntu	20.04	noarch	linux-aws-5.15	< 5.15.0-1038.43~20.04.1	UNKNOWN
ubuntu	18.04	noarch	linux-aws-5.4	< any	UNKNOWN
ubuntu	20.04	noarch	linux-azure	< 5.4.0-1110.116	UNKNOWN