Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2024-26583

Severity CVSS v4.0:
Pending analysis
Type:
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Publication date:
21/02/2024
Last modified:
25/05/2024

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> tls: fix race between async notify and socket close<br /> <br /> The submitting thread (one which called recvmsg/sendmsg)<br /> may exit as soon as the async crypto handler calls complete()<br /> so any code past that point risks touching already freed data.<br /> <br /> Try to avoid the locking and extra flags altogether.<br /> Have the main thread hold an extra reference, this way<br /> we can depend solely on the atomic ref counter for<br /> synchronization.<br /> <br /> Don&amp;#39;t futz with reiniting the completion, either, we are now<br /> tightly controlling when completion fires.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 4.70 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
4.70
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.7.0 (including) 6.1.79 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2.0 (including) 6.6.18 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7.0 (including) 6.7.6 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools