Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2023-52881

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
29/05/2024
Last modified:
27/09/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> tcp: do not accept ACK of bytes we never sent<br /> <br /> This patch is based on a detailed report and ideas from Yepeng Pan<br /> and Christian Rossow.<br /> <br /> ACK seq validation is currently following RFC 5961 5.2 guidelines:<br /> <br /> The ACK value is considered acceptable only if<br /> it is in the range of ((SND.UNA - MAX.SND.WND)

Impact

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

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 3.0.58 (including) 3.1 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 3.2.37 (including) 3.3 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 3.4.25 (including) 3.5 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 3.8 (including) 4.14.333 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.15 (including) 4.19.302 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.20 (including) 5.4.264 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.5 (including) 5.10.204 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11 (including) 5.15.143 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 6.1.68 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.6.7 (excluding)
cpe:2.3:o:linux:linux_kernel:6.7:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.7:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.7:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.7:rc4:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools