Memory Leak Affecting kernel package, versions <0:6.1.87-99.174.amzn2023


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-AMZN2023-KERNEL-8494763
  • published11 Dec 2024
  • disclosed19 May 2024

Introduced: 19 May 2024

CVE-2024-35908  (opens in a new tab)
CWE-401  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 kernel to version 0:6.1.87-99.174.amzn2023 or higher.
This issue was patched in ALAS2023-2024-613.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

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

tls: get psock ref after taking rxlock to avoid leak

At the start of tls_sw_recvmsg, we take a reference on the psock, and then call tls_rx_reader_lock. If that fails, we return directly without releasing the reference.

Instead of adding a new label, just take the reference after locking has succeeded, since we don't need it before.

CVSS Base Scores

version 3.1