CVE-2022-1263

A NULL pointer dereference issue was found in KVM when releasing a vCPU with dirty ring support enabled. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.

Published: Aug 31, 2022
Updated: Apr 14, 2023
CVE: CVE-2022-1263
Severity: Medium
Exploit:

CVSS v3:

Severity: Medium
Score: 5.5
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWEs:

CWE-476

Affected Software
References

Software	From	Fixed in
linux / linux_kernel	5.18-rc1	5.18-rc1.x
linux / linux_kernel	5.18-rc2	5.18-rc2.x
linux / linux_kernel	-	5.18
redhat / enterprise_linux	8.0	8.0.x
redhat / enterprise_linux	9.0	9.0.x

https://access.redhat.com/security/cve/CVE-2022-1263
https://bugzilla.redhat.com/show_bug.cgi?id=2072698
https://github.com/torvalds/linux/commit/5593473a1e6c743764b08e3b6071cb43b5cfa6c4
https://www.openwall.com/lists/oss-security/2022/04/07/1

Vulnerability Database

CVE-2022-1263

Deep Security Visibility Without the Complexity