CVE-2024-58240

Published Aug 28, 2025

Last updated a month ago

CVSS high 7.8
Linux Kernel

Overview

AI description

Automated description summarized from trusted sources.

CVE-2024-58240 is a vulnerability in the Linux kernel's TLS subsystem related to how it handles non-asynchronous decryption requests. The vulnerability stems from the handling process when asynchronous operations are not in use. In these cases, the process is simplified, and reference counting is omitted, with the system only needing to wait for completion to wake up and return the result. The resolution involves using a separate crypto_wait for non-async operations. This issue was addressed in August 2025, and patches have been made available for the Linux kernel. System administrators are advised to apply the latest kernel updates to mitigate the vulnerability.

Description
In the Linux kernel, the following vulnerability has been resolved: tls: separate no-async decryption request handling from async If we're not doing async, the handling is much simpler. There's no reference counting, we just need to wait for the completion to wake us up and return its result. We should preferably also use a separate crypto_wait. I'm not seeing a UAF as I did in the past, I think aec7961916f3 ("tls: fix race between async notify and socket close") took care of it. This will make the next fix easier.
Source
416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD status
Modified
Products
linux_kernel, debian_linux

Risk scores

CVSS 3.1

Type
Primary
Base score
7.8
Impact score
5.9
Exploitability score
1.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity
HIGH

Weaknesses

nvd@nist.gov
CWE-416

Social media

Hype score
Not currently trending

  1. We recently claimed the cos-113 slot with an exploit for CVE-2024-58240😎 A backport for an exploitable UAF was missed for 6.1.x for the past 1.5 years🧐 Maybe when we have healed from our recent 100k bug bounty typo will we tell the full story🤪 https://t.co/i8GucxeLpB

    @cor_ctf

    7 Sept 2025

    3703 Impressions

    5 Retweets

    70 Likes

    17 Bookmarks

    1 Reply

    0 Quotes

Configurations

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References

Sources include official advisories and independent security research.