CVE-2024-41090 Affecting kernel-rt package, versions <0:5.14.0-427.33.1.el9_4
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Test your applications- Snyk ID SNYK-ALMALINUX9-KERNELRT-8338424
- published 4 Nov 2024
- disclosed 28 Aug 2024
Introduced: 28 Aug 2024
CVE-2024-41090 Open this link in a new tabHow to fix?
Upgrade AlmaLinux:9 kernel-rt to version 0:5.14.0-427.33.1.el9_4 or higher.
This issue was patched in ALSA-2024:5928.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt package and not the kernel-rt package as distributed by AlmaLinux.
See How to fix? for AlmaLinux:9 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
tap: add missing verification for short frame
The cited commit missed to check against the validity of the frame length in the tap_get_user_xdp() path, which could cause a corrupted skb to be sent downstack. Even before the skb is transmitted, the tap_get_user_xdp()-->skb_set_network_header() may assume the size is more than ETH_HLEN. Once transmitted, this could either cause out-of-bound access beyond the actual length, or confuse the underlayer with incorrect or inconsistent header length in the skb metadata.
In the alternative path, tap_get_user() already prohibits short frame which has the length less than Ethernet header size from being transmitted.
This is to drop any frame shorter than the Ethernet header size just like how tap_get_user() does.
CVE: CVE-2024-41090
References
- https://errata.almalinux.org/9/ALSA-2024-5928.html
- https://errata.almalinux.org/8/ALSA-2024-7000.html
- https://errata.almalinux.org/8/ALSA-2024-7001.html
- https://access.redhat.com/security/cve/CVE-2024-41090
- https://access.redhat.com/errata/RHSA-2024:5928
- https://access.redhat.com/errata/RHSA-2024:7000
- https://access.redhat.com/errata/RHSA-2024:7001
- https://git.kernel.org/stable/c/73d462a38d5f782b7c872fe9ae8393d9ef5483da
- https://git.kernel.org/stable/c/7431144b406ae82807eb87d8c98e518475b0450f
- https://git.kernel.org/stable/c/8be915fc5ff9a5e296f6538be12ea75a1a93bdea
- https://git.kernel.org/stable/c/aa6a5704cab861c9b2ae9f475076e1881e87f5aa
- https://git.kernel.org/stable/c/e1a786b9bbb767fd1c922d424aaa8078cc542309
- https://git.kernel.org/stable/c/e5e5e63c506b93b89b01f522b6a7343585f784e6
- https://git.kernel.org/stable/c/ed7f2afdd0e043a397677e597ced0830b83ba0b3
- https://git.kernel.org/stable/c/ee93e6da30377cf2a75e16cd32bb9fcd86a61c46