CVE-2024-53206

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

27/12/2024

Last modified:

03/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix use-after-free of nreq in reqsk_timer_handler(). The cited commit replaced inet_csk_reqsk_queue_drop_and_put() with __inet_csk_reqsk_queue_drop() and reqsk_put() in reqsk_timer_handler(). Then, oreq should be passed to reqsk_put() instead of req; otherwise use-after-free of nreq could happen when reqsk is migrated but the retry attempt failed (e.g. due to timeout). Let&#39;s pass oreq to reqsk_put().

Impact

Vector 3.x

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

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.15.170 (including)	5.15.174 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.1.115 (including)	6.1.120 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.6.59 (including)	6.6.64 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.11.6 (including)	6.11.11 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.12 (including)	6.12.2 (excluding)

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

CVE-2024-53206

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools