PT-2024-29261 · Linux+9 · Linux Kernel+9
Dongli Zhang
·
Published
2024-07-24
·
Updated
2026-01-12
·
CVE-2024-41091
CVSS v3.1
7.1
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to a missing verification for short frames in the tun xdp one() path, which could cause a corrupted skb to be sent downstack. Before the skb is transmitted, the tun xdp one-->eth type trans() may access the Ethernet header although it can be less 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. The alternative path, tun get user(), already prohibits short frames with lengths less than the Ethernet header size from being transmitted for IFF TAP. This is to drop any frame shorter than the Ethernet header size.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Out of bounds Read
RCE
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Related Identifiers
Affected Products
Almalinux
Astra Linux
Centos
Linuxmint
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu