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

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2023-53369

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
18/09/2025
Last modified:
12/12/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> net: dcb: choose correct policy to parse DCB_ATTR_BCN<br /> <br /> The dcbnl_bcn_setcfg uses erroneous policy to parse tb[DCB_ATTR_BCN],<br /> which is introduced in commit 859ee3c43812 ("DCB: Add support for DCB<br /> BCN"). Please see the comment in below code<br /> <br /> static int dcbnl_bcn_setcfg(...)<br /> {<br /> ...<br /> ret = nla_parse_nested_deprecated(..., dcbnl_pfc_up_nest, .. )<br /> // !!! dcbnl_pfc_up_nest for attributes<br /> // DCB_PFC_UP_ATTR_0 to DCB_PFC_UP_ATTR_ALL in enum dcbnl_pfc_up_attrs<br /> ...<br /> for (i = DCB_BCN_ATTR_RP_0; i

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:*:*:*:*:*:*:*:* 2.6.29 (including) 5.4.253 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.5 (including) 5.10.190 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11 (including) 5.15.126 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 6.1.45 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.4.10 (excluding)
cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools