CVE-2024-41091

Source
https://nvd.nist.gov/vuln/detail/CVE-2024-41091
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-41091.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-41091
Downstream
Related
Published
2024-07-29T06:18:12.019Z
Modified
2025-11-28T02:35:18.825352Z
Summary
tun: add missing verification for short frame
Details

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

tun: add missing verification for short frame

The cited commit missed to check against the validity of the frame length in the tunxdpone() path, which could cause a corrupted skb to be sent downstack. Even before the skb is transmitted, the tunxdpone-->ethtypetrans() 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.

In the alternative path, tungetuser() already prohibits short frame which has the length less than Ethernet header size from being transmitted for IFF_TAP.

This is to drop any frame shorter than the Ethernet header size just like how tungetuser() does.

CVE: CVE-2024-41091

Database specific
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/41xxx/CVE-2024-41091.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
043d222f93ab8c76b56a3b315cd8692e35affb6c
Fixed
32b0aaba5dbc85816898167d9b5d45a22eae82e9
Fixed
6100e0237204890269e3f934acfc50d35fd6f319
Fixed
589382f50b4a5d90d16d8bc9dcbc0e927a3e39b2
Fixed
ad6b3f622ccfb4bfedfa53b6ebd91c3d1d04f146
Fixed
d5ad89b7d01ed4e66fd04734fc63d6e78536692a
Fixed
a9d1c27e2ee3b0ea5d40c105d6e728fc114470bb
Fixed
8418f55302fa1d2eeb73e16e345167e545c598a5
Fixed
049584807f1d797fc3078b68035450a9769eb5c3

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.20.0
Fixed
5.4.281
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.223
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.164
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.102
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.43
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.9.12
Type
ECOSYSTEM
Events
Introduced
6.10.0
Fixed
6.10.2