Memory Leak Affecting kernel-zfcpdump-modules-core package, versions <0:5.14.0-427.13.1.el9_4


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELZFCPDUMPMODULESCORE-6372294
  • published5 Mar 2024
  • disclosed2 Mar 2024

Introduced: 2 Mar 2024

CVE-2023-52581  (opens in a new tab)
CWE-401  (opens in a new tab)

How to fix?

Upgrade RHEL:9 kernel-zfcpdump-modules-core to version 0:5.14.0-427.13.1.el9_4 or higher.
This issue was patched in RHSA-2024:2394.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump-modules-core package and not the kernel-zfcpdump-modules-core package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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

netfilter: nf_tables: fix memleak when more than 255 elements expired

When more than 255 elements expired we're supposed to switch to a new gc container structure.

This never happens: u8 type will wrap before reaching the boundary and nft_trans_gc_space() always returns true.

This means we recycle the initial gc container structure and lose track of the elements that came before.

While at it, don't deref 'gc' after we've passed it to call_rcu.

CVSS Scores

version 3.1