PT-2022-4603 · Linux+7 · Linux Kernel+7

Gaoning Pan + 1 · Published 2022-03-25 · Updated 2023-08-14 · CVE-2022-2153

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A flaw in the Linux kernel's KVM allows a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This issue enables an unprivileged local attacker on the host to issue specific ioctl calls, resulting in a kernel oops condition that causes a denial of service. The vulnerability is related to errors in pointer dereferencing in the kvm irq delivery to apic fast() function of the Kernel-based Virtual Machine (KVM) subsystem.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2022-2050

ALT-PU-2022-2131

ALT-PU-2022-2152

ALT-PU-2022-2155

ALT-PU-2023-1684

ALT-PU-2023-1741

ALT-PU-2023-1814

ALT-PU-2023-4894

AZL-10794

BDU:2022-05481

CESA-2022_7444

CESA-2022_7683

CVE-2022-2153

DLA-3065-1

DLA-3131-1

DLA-3173-1

DSA-5173-1

OESA-2022-1746

OPENSUSE-SU-2022_3897-1

OPENSUSE-SU-2022_3998-1

OPENSUSE-SU-2022_4053-1

OPENSUSE-SU-2022_4072-1

OPENSUSE-SU-2022_4574-1

OPENSUSE-SU-2022_4617-1

RHSA-2022:7444

RHSA-2022:7683

RHSA-2022:7933

RHSA-2022:8267

RHSA-2022_7444

RHSA-2022_7683

RHSA-2022_7933

RHSA-2022_8267

SUSE-SU-2022:3897-1

SUSE-SU-2022:3929-1

SUSE-SU-2022:3930-1

SUSE-SU-2022:3998-1

SUSE-SU-2022:4053-1

SUSE-SU-2022:4072-1

SUSE-SU-2022:4272-1

SUSE-SU-2022:4273-1

SUSE-SU-2022:4573-1

SUSE-SU-2022:4574-1

SUSE-SU-2022:4589-1

SUSE-SU-2022:4614-1

SUSE-SU-2022:4615-1

SUSE-SU-2022:4617-1

USN-5727-1

USN-5727-2

USN-5728-1

USN-5728-2

USN-5728-3

USN-5774-1

Affected Products

Alt Linux

Astra Linux

Centos

Linuxmint

Linux Kernel

Red Hat

Suse

Ubuntu

References · 563

• 🔥 https://openwall.com/lists/oss-security/2022/06/22/1 · Exploit
• https://github.com/torvalds/linux/commit/b1e34d325397a33d97d845e312d7cf2a8b646b44 · Patch
• https://github.com/torvalds/linux/commit/00b5f37189d24ac3ed46cb7f11742094778c46ce · Patch
• https://github.com/torvalds/linux/commit/7ec37d1cbe17d8189d9562178d8b29167fe1c31a · Patch
• https://ubuntu.com/security/CVE-2022-42719 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-2153 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-41222 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-5727-2 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-5728-2 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:4273-1 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2022-1746 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-20422 · Vendor Advisory
• https://osv.dev/vulnerability/USN-5728-3 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:4053-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-3566 · Vendor Advisory