CVE-2022-48804

vt_ioctl: fix array_index_nospec in vt_setactivate

Severity Score

7.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

In the Linux kernel, the following vulnerability has been resolved:

vt_ioctl: fix array_index_nospec in vt_setactivate

array_index_nospec ensures that an out-of-bounds value is set to zero
on the transient path. Decreasing the value by one afterwards causes
a transient integer underflow. vsa.console should be decreased first
and then sanitized with array_index_nospec.

Kasper Acknowledgements: Jakob Koschel, Brian Johannesmeyer, Kaveh
Razavi, Herbert Bos, Cristiano Giuffrida from the VUSec group at VU
Amsterdam.

*Credits: N/A

CVSS Scores

Red Hatv3.1 7.1

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-07-16 CVE Reserved
2024-07-16 CVE Published
2024-09-10 EPSS Updated
2024-11-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (10)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/830c5aa302ec16b4ee641aec769462c37f802c90	2022-02-16
https://git.kernel.org/stable/c/2a45a6bd1e6d651770aafff57ab3e1d3bb0b42e0	2022-02-16
https://git.kernel.org/stable/c/170325aba4608bde3e7d21c9c19b7bc266ac0885	2022-02-16
https://git.kernel.org/stable/c/ae3d57411562260ee3f4fd5e875f410002341104	2022-02-16
https://git.kernel.org/stable/c/778302ca09498b448620edd372dc908bebf80bdf	2022-02-16
https://git.kernel.org/stable/c/ffe54289b02e9c732d6f04c8ebbe3b2d90d32118	2022-02-16
https://git.kernel.org/stable/c/6550bdf52846f85a2a3726a5aa0c7c4399f2fc02	2022-02-16
https://git.kernel.org/stable/c/61cc70d9e8ef5b042d4ed87994d20100ec8896d9	2022-02-04

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2022-48804	2024-11-12
https://bugzilla.redhat.com/show_bug.cgi?id=2298140	2024-11-12

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"				< 4.9.302 Search vendor "Linux" for product "Linux Kernel" and version " < 4.9.302"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 4.14.267 Search vendor "Linux" for product "Linux Kernel" and version " < 4.14.267"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 4.19.230 Search vendor "Linux" for product "Linux Kernel" and version " < 4.19.230"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.4.180 Search vendor "Linux" for product "Linux Kernel" and version " < 5.4.180"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.10.101 Search vendor "Linux" for product "Linux Kernel" and version " < 5.10.101"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.15.24 Search vendor "Linux" for product "Linux Kernel" and version " < 5.15.24"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.16.10 Search vendor "Linux" for product "Linux Kernel" and version " < 5.16.10"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.17 Search vendor "Linux" for product "Linux Kernel" and version " < 5.17"		en		Affected