7.1

CVE-2024-41091

tun: add missing verification for short frame

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 tun_xdp_one() path, which could cause a corrupted skb to be sent
downstack. Even 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.

In the alternative path, tun_get_user() 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 tun_get_user() does.

CVE: CVE-2024-41091
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.281
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.223
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.164
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.102
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.43
Linux ≫ Linux Kernel Version >= 6.7 < 6.9.12
Linux ≫ Linux Kernel Version >= 6.10 < 6.10.2
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.25% 0.167
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.1 1.8 5.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

https://git.kernel.org/stable/c/049584807f1d797fc3078b68035450a9769eb5c3
Patch
https://git.kernel.org/stable/c/32b0aaba5dbc85816898167d9b5d45a22eae82e9
Patch
https://git.kernel.org/stable/c/589382f50b4a5d90d16d8bc9dcbc0e927a3e39b2
Patch
https://git.kernel.org/stable/c/6100e0237204890269e3f934acfc50d35fd6f319
Patch
https://git.kernel.org/stable/c/8418f55302fa1d2eeb73e16e345167e545c598a5
Patch
https://git.kernel.org/stable/c/a9d1c27e2ee3b0ea5d40c105d6e728fc114470bb
Patch
https://git.kernel.org/stable/c/ad6b3f622ccfb4bfedfa53b6ebd91c3d1d04f146
Patch
https://git.kernel.org/stable/c/d5ad89b7d01ed4e66fd04734fc63d6e78536692a
Patch
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html