CVE-2023-53000 Affecting rtla package, versions *


Severity

Recommended
high

Based on CentOS security rating.

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  • Snyk IDSNYK-CENTOS9-RTLA-9541670
  • published28 Mar 2025
  • disclosed27 Mar 2025

Introduced: 27 Mar 2025

NewCVE-2023-53000  (opens in a new tab)

How to fix?

There is no fixed version for Centos:9 rtla.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rtla package and not the rtla package as distributed by Centos. See How to fix? for Centos:9 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

netlink: prevent potential spectre v1 gadgets

Most netlink attributes are parsed and validated from __nla_validate_parse() or validate_nla()

u16 type = nla_type(nla);

if (type == 0 || type > maxtype) { /* error or continue */ }

@type is then used as an array index and can be used as a Spectre v1 gadget.

array_index_nospec() can be used to prevent leaking content of kernel memory to malicious users.

This should take care of vast majority of netlink uses, but an audit is needed to take care of others where validation is not yet centralized in core netlink functions.

CVSS Base Scores

version 3.1