Vulnerability CVE-2022-27950

Vulnerability Name:

CVE-2022-27950 (CCN-222700)

Assigned:

2022-03-13

Published:

2022-03-13

Updated:

2022-04-05

Summary:

In drivers/hid/hid-elo.c in the Linux kernel before 5.16.11, a memory leak exists for a certain hid_parse error condition.

CVSS v3 Severity:

5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/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): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None 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

5.1 Medium (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
4.5 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/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): High 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:

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

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): None 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-401

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2022-27950

Source: MISC
Type: Mailing List, Patch, Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.11

Source: XF
Type: UNKNOWN
linux-kernel-cve202227950-dos(222700)

Source: MISC
Type: Mailing List, Patch, Vendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=817b8b9c5396d2b2d92311b46719aad5d3339dbe

Source: CCN
Type: Linux Kernel GIT Repository
HID: elo: fix memory leak in elo_probe

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/817b8b9c5396d2b2d92311b46719aad5d3339dbe

Source: MISC
Type: Mailing List, Patch, Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/03/13/1

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2022-27950

Vulnerable Configuration:

Configuration 1:

cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version < 5.16.11)

Configuration RedHat 1:

cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*

Configuration RedHat 2:

cpe:/a:redhat:enterprise_linux:8::nfv:*:*:*:*:*

Configuration RedHat 3:

cpe:/a:redhat:enterprise_linux:8::realtime:*:*:*:*:*

Configuration RedHat 4:

cpe:/a:redhat:enterprise_linux:8::crb:*:*:*:*:*

Configuration RedHat 5:

cpe:/o:redhat:enterprise_linux:8:*:*:*:*:*:*:*

Configuration RedHat 6:

cpe:/o:redhat:enterprise_linux:8::baseos:*:*:*:*:*

Configuration CCN 1:

cpe:/o:linux:linux_kernel:5.16:-:*:*:*:*:*:*

OR cpe:/o:linux:linux_kernel:5.16.10:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.redhat.rhsa:def:20227444	P	RHSA-2022:7444: kernel-rt security and bug fix update (Moderate)	2022-11-08
oval:com.redhat.rhsa:def:20227683	P	RHSA-2022:7683: kernel security, bug fix, and enhancement update (Moderate)	2022-11-08

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