CVE-2023-1859

Published: May 17, 2023Modified: Jun 17, 2026

4.7

Vector

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

Exploitability: 1.0 / Impact: 3.6

Source: NVD

Description

A use-after-free flaw was found in xen_9pfs_front_removet in net/9p/trans_xen.c in Xen transport for 9pfs in the Linux Kernel. This flaw could allow a local attacker to crash the system due to a race problem, possibly leading to a kernel information leak.

Affected (7)

Products: Linux: Linux Kernel

Linux

1 product

Linux Kernel

Configuration A

7 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	version ≤ 6.2
Linux Linux Kernel	Version 6.3 rc1
Linux Linux Kernel	Version 6.3 rc2
Linux Linux Kernel	Version 6.3 rc3
Linux Linux Kernel	Version 6.3 rc4
Linux Linux Kernel	Version 6.3 rc5
Linux Linux Kernel	Version 6.3 rc6

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (2)

https://lore.kernel.org/all/20230313090002.3308025-1-zyytlz.wz%40163.com/

Source: secalert@redhat.com

https://lore.kernel.org/all/20230313090002.3308025-1-zyytlz.wz%40163.com/

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.