CVE-2022-1882 [High] | Use-After-Free in Linux Kernel

A use-after-free flaw was found in the Linux kernel’s pipes functionality in how a user performs manipulations with the pipe post_one_notification() after free_pipe_info() that is already called. This flaw allows a local user to crash or potentially escalate their privileges on the system.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2023-03-07	0.89%	0.04%	-0.84%
2	2022-05-27	—	0.89%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2023-03-07

0.89%

0.04%

-0.84%

2022-05-27

—

0.89%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.8	3.1	HIGH	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	1.8	5.9	[email protected]
7.2	2.0	HIGH	`AV:L/AC:L/Au:N/C:C/I:C/A:C` Click to expand Access vector (AV:L) Requires local access to the target system. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:C) Complete confidentiality impact. Integrity impact (I:C) Complete integrity impact. Availability impact (A:C) Complete availability impact.	3.9	10.0	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.8

3.1

HIGH

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

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L): A normal user session is enough; they don’t have to be admin.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

1.8

5.9

[email protected]

7.2

2.0

HIGH

AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand

Access vector (AV:L): Requires local access to the target system.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:N): No authentication is required.
Confidentiality impact (C:C): Complete confidentiality impact.
Integrity impact (I:C): Complete integrity impact.
Availability impact (A:C): Complete availability impact.

3.9

10.0

[email protected]

OS Trackers for CVE-2022-1882

vendor	priority	summary	link
`debian`	unimportant	CVE-2022-1882 unimportant priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2022-1882
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2022-1882
`suse`	high	—	https://www.suse.com/security/cve/CVE-2022-1882/
`ubuntu`	high	CVE-2022-1882 high priority: Ubuntu including 135 source packages (linux, linux-allwinner, …), 1481 status rows across 13 suites (bionic, focal, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, trusty, upstream, xenial): DNE 1103, not-affected 160, released 157, ignored 61.	https://ubuntu.com/security/CVE-2022-1882

Affected software / configurations for CVE-2022-1882

Vendor	Product	Version	Raw CPE
linux	linux_kernel	>= 5.10.106, < 5.10.134	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.15.29, < 5.15.58	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.16.15, < 5.18.15	cpe:2.3:o:linux:linux_kernel::::::::
netapp	h300s_firmware	—	cpe:2.3:o:netapp:h300s_firmware:-:::::::*
netapp	h500s_firmware	—	cpe:2.3:o:netapp:h500s_firmware:-:::::::*
netapp	h410c_firmware	—	cpe:2.3:o:netapp:h410c_firmware:-:::::::*
netapp	h700s_firmware	—	cpe:2.3:o:netapp:h700s_firmware:-:::::::*
netapp	h300e_firmware	—	cpe:2.3:o:netapp:h300e_firmware:-:::::::*
netapp	h500e_firmware	—	cpe:2.3:o:netapp:h500e_firmware:-:::::::*
netapp	h700e_firmware	—	cpe:2.3:o:netapp:h700e_firmware:-:::::::*
netapp	h410s_firmware	—	cpe:2.3:o:netapp:h410s_firmware:-:::::::*

References for CVE-2022-1882

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2089701	Issue Tracking Patch Third Party Advisory
https://lore.kernel.org/lkml/20220507115605.96775-1-tcs.kernel%40gmail.com/T/
https://security.netapp.com/advisory/ntap-20220715-0002/	Third Party Advisory

URL

CVE-2022-1882

Exploit prediction scoring system (EPSS) score for CVE-2022-1882

Common vulnerability scoring system (CVSS) metrics for CVE-2022-1882

Weakness enumeration for CVE-2022-1882

OS Trackers for CVE-2022-1882

Affected software / configurations for CVE-2022-1882

References for CVE-2022-1882