CVE-2023-26544

2023-02-2500:00:00

ubuntu.com

linux kernel 6.0.8

ntfs sector size

media sector size

use-after-free

run_unpack

fs/ntfs3

bugzilla

suse

slab-out-of-bounds

7.8 High

CVSS3

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

0.0004 Low

EPSS

Percentile

5.1%

JSON

In the Linux kernel 6.0.8, there is a use-after-free in run_unpack in
fs/ntfs3/run.c, related to a difference between NTFS sector size and media
sector size.

Bugs

Notes

Author	Note
sbeattie	reproducer in gist
sbeattie	SUSE believes this was fixed in 887bfc546097 (“fs/ntfs3: Fix slab-out-of-bounds read in run_unpack”)

OSVersionArchitecturePackageVersionFilename
ubuntu22.04noarchlinux< 5.15.0-69.76UNKNOWN
ubuntu22.10noarchlinux< 5.19.0-42.43UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1033.37UNKNOWN
ubuntu22.10noarchlinux-aws< 5.19.0-1025.26UNKNOWN
ubuntu20.04noarchlinux-aws-5.15< 5.15.0-1033.37~20.04.1UNKNOWN
ubuntu22.04noarchlinux-azure< 5.15.0-1035.42UNKNOWN
ubuntu22.10noarchlinux-azure< 5.19.0-1026.29UNKNOWN
ubuntu20.04noarchlinux-azure-5.15< 5.15.0-1035.42~20.04.1UNKNOWN
ubuntu22.04noarchlinux-azure-5.19< 5.19.0-1026.29~22.04.1UNKNOWN
ubuntu22.04noarchlinux-azure-fde< 5.15.0-1035.42.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	22.04	noarch	linux	< 5.15.0-69.76	UNKNOWN
ubuntu	22.10	noarch	linux	< 5.19.0-42.43	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1033.37	UNKNOWN
ubuntu	22.10	noarch	linux-aws	< 5.19.0-1025.26	UNKNOWN
ubuntu	20.04	noarch	linux-aws-5.15	< 5.15.0-1033.37~20.04.1	UNKNOWN
ubuntu	22.04	noarch	linux-azure	< 5.15.0-1035.42	UNKNOWN
ubuntu	22.10	noarch	linux-azure	< 5.19.0-1026.29	UNKNOWN
ubuntu	20.04	noarch	linux-azure-5.15	< 5.15.0-1035.42~20.04.1	UNKNOWN
ubuntu	22.04	noarch	linux-azure-5.19	< 5.19.0-1026.29~22.04.1	UNKNOWN
ubuntu	22.04	noarch	linux-azure-fde	< 5.15.0-1035.42.1	UNKNOWN