CVE-2024-42255

tpm: Use auth only after NULL check in tpm_buf_check_hmac_response()

Severity Score

"-"

*CVSS v-

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:

tpm: Use auth only after NULL check in tpm_buf_check_hmac_response()

Dereference auth after NULL check in tpm_buf_check_hmac_response().
Otherwise, unless tpm2_sessions_init() was called, a call can cause NULL
dereference, when TCG_TPM2_HMAC is enabled.

[jarkko: adjusted the commit message.]

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tpm: use autenticación solo después de la verificación NULL en tpm_buf_check_hmac_response() Desreferenciar la autenticación después de la verificación NULL en tpm_buf_check_hmac_response(). De lo contrario, a menos que se haya llamado a tpm2_sessions_init(), una llamada puede causar una desreferencia NULL, cuando TCG_TPM2_HMAC está habilitado. [jarkko: ajustó el mensaje de confirmación.]

*Credits: N/A

CVSS Scores

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-07-30 CVE Reserved
2024-08-08 CVE Published
2024-08-13 EPSS Updated
2024-09-15 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (3)

URL	Tag	Source
https://git.kernel.org/stable/c/7ca110f2679b7d1f3ac1afc90e6ffbf0af3edf0d	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/b9afbb9a0c734197c59c43610071041044bf1562	2024-07-24
https://git.kernel.org/stable/c/7dc357d343f134bf59815ff6098b93503ec8a23b	2024-07-16

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"				>= 6.10 < 6.10.1 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.10 < 6.10.1"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.10 < 6.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.10 < 6.11"		en		Affected