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

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CVE-2024-49855

Severity CVSS v4.0:
Pending analysis
Type:
CWE-416 Use After Free
Publication date:
21/10/2024
Last modified:
03/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> nbd: fix race between timeout and normal completion<br /> <br /> If request timetout is handled by nbd_requeue_cmd(), normal completion<br /> has to be stopped for avoiding to complete this requeued request, other<br /> use-after-free can be triggered.<br /> <br /> Fix the race by clearing NBD_CMD_INFLIGHT in nbd_requeue_cmd(), meantime<br /> make sure that cmd-&gt;lock is grabbed for clearing the flag and the<br /> requeue.

Impact

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

Base Score: 7.00 HIGH
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
7.00
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.18.4 (including) 5.19 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.19 (including) 6.1.113 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.6.54 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.10.13 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.11 (including) 6.11.2 (excluding)
cpe:2.3:o:linux:linux_kernel:5.17.15:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools