Vulnerability CVE-2022-1462

Vulnerability Name:

CVE-2022-1462 (CCN-227501)

Assigned:

2022-05-27

Published:

2022-05-27

Updated:

2022-10-29

Summary:

An out-of-bounds read flaw was found in the Linux kernel’s TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory.

CVSS v3 Severity:

6.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H)
5.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): High Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): None Availibility (A): High

6.2 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

CVSS v2 Severity:

3.3 Low (CVSS v2 Vector: AV:L/AC:M/Au:N/C:P/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): None Availibility (A): Partial

4.9 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Complete

Vulnerability Type:

CWE-362

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2022-1462

Source: MISC
Type: Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2078466

Source: XF
Type: UNKNOWN
linux-kernel-cve20221462-dos(227501)

Source: CCN
Type: Linux Kernel GIT Repository
tty: Fix data race in tty_insert_flip_string_fixed_flag

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20221002 [SECURITY] [DLA 3131-1] linux security update

Source: CCN
Type: oss-sec Mailing List, Fri, 27 May 2022 22:47:05 +0800
CVE-2022-1462: Linux kernel: A race condition vulnerability in drivers/tty/tty_buffers.c

Source: MISC
Type: Exploit, Mailing List, Third Party Advisory
https://seclists.org/oss-sec/2022/q2/155

Source: CCN
Type: IBM Security Bulletin 7007837 (Cloud Pak for Watson AIOps)
Multiple Vulnerabilities in CloudPak for Watson AIOPs

Vulnerable Configuration:

Configuration 1:

cpe:/o:linux:linux_kernel:-:*:*:*:*:*:*:*

Configuration 2:

cpe:/o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

OR cpe:/o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

Configuration 3:

cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/o:linux:linux_kernel:-:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:8029	P	kernel-docs-5.14.21-150500.53.2 on GA media (Moderate)	2023-06-20
oval:org.opensuse.security:def:7539	P	kernel-64kb-5.14.21-150500.53.2 on GA media (Moderate)	2023-06-12
oval:org.opensuse.security:def:8090	P	reiserfs-kmp-default-5.14.21-150500.53.2 on GA media (Moderate)	2023-06-12
oval:org.opensuse.security:def:4739	P	Security update for the Linux Kernel (Important)	2022-08-26
oval:org.opensuse.security:def:707	P	Security update for the Linux Kernel (Important)	2022-08-23
oval:org.opensuse.security:def:697	P	Security update for the Linux Kernel (Important)	2022-08-16
oval:org.opensuse.security:def:119468	P	Security update for the Linux Kernel (Important)	2022-08-15
oval:org.opensuse.security:def:125778	P	Security update for the Linux Kernel (Important)	2022-08-15
oval:org.opensuse.security:def:118792	P	Security update for the Linux Kernel (Important)	2022-08-15
oval:org.opensuse.security:def:119653	P	Security update for the Linux Kernel (Important)	2022-08-15
oval:org.opensuse.security:def:126942	P	Security update for the Linux Kernel (Important)	2022-08-15
oval:org.opensuse.security:def:118982	P	Security update for the Linux Kernel (Important)	2022-08-15
oval:org.opensuse.security:def:125119	P	Security update for the Linux Kernel (Important)	2022-08-15
oval:org.opensuse.security:def:118235	P	Security update for the Linux Kernel (Important)	2022-08-15
oval:org.opensuse.security:def:127340	P	Security update for the Linux Kernel (Important)	2022-08-15
oval:org.opensuse.security:def:119287	P	Security update for the Linux Kernel (Important)	2022-08-15
oval:org.opensuse.security:def:125388	P	Security update for the Linux Kernel (Important)	2022-08-15
oval:org.opensuse.security:def:118655	P	Security update for the Linux Kernel (Important)	2022-08-15
oval:org.opensuse.security:def:4665	P	Security update for the Linux Kernel (Important)	2022-08-09
oval:org.opensuse.security:def:6136	P	Security update for the Linux Kernel (Important)	2022-08-09
oval:org.opensuse.security:def:687	P	Security update for the Linux Kernel (Important)	2022-08-09
oval:org.opensuse.security:def:6350	P	Security update for the Linux Kernel (Important)	2022-08-09
oval:org.opensuse.security:def:5322	P	Security update for the Linux Kernel (Important)	2022-08-09
oval:org.opensuse.security:def:4302	P	Security update for the Linux Kernel (Important)	2022-08-09
oval:org.opensuse.security:def:6135	P	Security update for the Linux Kernel (Important)	2022-08-09
oval:org.opensuse.security:def:95273	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:93319	P	(Important)	2022-07-21
oval:org.opensuse.security:def:589	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:3643	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:95416	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:94051	P	(Important)	2022-07-21
oval:org.opensuse.security:def:3783	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:95335	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:93477	P	(Important)	2022-07-21
oval:org.opensuse.security:def:3705	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:95427	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:94263	P	(Important)	2022-07-21
oval:org.opensuse.security:def:3794	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:95350	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:93630	P	(Important)	2022-07-21
oval:org.opensuse.security:def:3720	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:94472	P	(Important)	2022-07-21
oval:org.opensuse.security:def:93159	P	(Important)	2022-07-21
oval:org.opensuse.security:def:95356	P	Security update for the Linux Kernel (Important)	2022-07-21
oval:org.opensuse.security:def:93837	P	(Important)	2022-07-21
oval:org.opensuse.security:def:3726	P	Security update for the Linux Kernel (Important)	2022-07-21

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