CVE-2022-49114

scsi: libfc: Fix use after free in fc_exch_abts_resp()

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

MITRE

In the Linux kernel, the following vulnerability has been resolved: scsi: libfc: Fix use after free in fc_exch_abts_resp() fc_exch_release(ep) will decrease the ep's reference count. When the
reference count reaches zero, it is freed. But ep is still used in the
following code, which will lead to a use after free. Return after the fc_exch_release() call to avoid use after free.

*Credits: N/A

CVSS Scores

CISAv3.1 7.8

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2025-02-26 CVE Reserved
2025-02-26 CVE Published
2025-03-04 CVE Updated
2025-04-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (9)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/4a131d4ea8b581ac9b01d3a72754db4848be3232	2022-04-20
https://git.kernel.org/stable/c/499d198494e77b6533251b9b909baf5c101129cb	2022-04-20
https://git.kernel.org/stable/c/6044ad64f41c87382cfeeca281573d1886d80cbe	2022-04-15
https://git.kernel.org/stable/c/5cf2ce8967b0d98c8cfa4dc42ef4fcf080f5c836	2022-04-15
https://git.kernel.org/stable/c/1d7effe5fff9d28e45e18ac3a564067c7ddfe898	2022-04-13
https://git.kernel.org/stable/c/f581df412bc45c95176e3c808ee2839c05b2ab0c	2022-04-13
https://git.kernel.org/stable/c/87909291762d08fdb60d19069d7a89b5b308d0ef	2022-04-13
https://git.kernel.org/stable/c/412dd8299b02e4410fe77b8396953c1a8dde183a	2022-04-13
https://git.kernel.org/stable/c/271add11994ba1a334859069367e04d2be2ebdd4	2022-03-09

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 4.9.311 Search vendor "Linux" for product "Linux Kernel" and version " < 4.9.311"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 4.14.276 Search vendor "Linux" for product "Linux Kernel" and version " < 4.14.276"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 4.19.238 Search vendor "Linux" for product "Linux Kernel" and version " < 4.19.238"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.4.189 Search vendor "Linux" for product "Linux Kernel" and version " < 5.4.189"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.10.111 Search vendor "Linux" for product "Linux Kernel" and version " < 5.10.111"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.15.34 Search vendor "Linux" for product "Linux Kernel" and version " < 5.15.34"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.16.20 Search vendor "Linux" for product "Linux Kernel" and version " < 5.16.20"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.17.3 Search vendor "Linux" for product "Linux Kernel" and version " < 5.17.3"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.18 Search vendor "Linux" for product "Linux Kernel" and version " < 5.18"		en		Affected