Description
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
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
043d222f93ab8c76b56a3b315cd8692e35affb6c to < 32b0aaba5dbc85816898167d9b5d45a22eae82e9affected043d222f93ab8c76b56a3b315cd8692e35affb6c to < 6100e0237204890269e3f934acfc50d35fd6f319affected043d222f93ab8c76b56a3b315cd8692e35affb6c to < 589382f50b4a5d90d16d8bc9dcbc0e927a3e39b2affected043d222f93ab8c76b56a3b315cd8692e35affb6c to < ad6b3f622ccfb4bfedfa53b6ebd91c3d1d04f146affected043d222f93ab8c76b56a3b315cd8692e35affb6c to < d5ad89b7d01ed4e66fd04734fc63d6e78536692aaffected043d222f93ab8c76b56a3b315cd8692e35affb6c to < a9d1c27e2ee3b0ea5d40c105d6e728fc114470bbaffected043d222f93ab8c76b56a3b315cd8692e35affb6c to < 8418f55302fa1d2eeb73e16e345167e545c598a5affected043d222f93ab8c76b56a3b315cd8692e35affb6c to < 049584807f1d797fc3078b68035450a9769eb5c3affected
Linux Linux
Default version status: affected
4.20affected0 to < 4.20unaffected5.4.281 to ≤ 5.4.*unaffected5.10.223 to ≤ 5.10.*unaffected5.15.164 to ≤ 5.15.*unaffected6.1.102 to ≤ 6.1.*unaffected6.6.43 to ≤ 6.6.*unaffected6.9.12 to ≤ 6.9.*unaffected6.10.2 to ≤ 6.10.*unaffected6.11 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/32b0aaba5dbc85816898167d9b5d45a22eae82e9 ↗
- https://git.kernel.org/stable/c/6100e0237204890269e3f934acfc50d35fd6f319 ↗
- https://git.kernel.org/stable/c/589382f50b4a5d90d16d8bc9dcbc0e927a3e39b2 ↗
- https://git.kernel.org/stable/c/ad6b3f622ccfb4bfedfa53b6ebd91c3d1d04f146 ↗
- https://git.kernel.org/stable/c/d5ad89b7d01ed4e66fd04734fc63d6e78536692a ↗
- https://git.kernel.org/stable/c/a9d1c27e2ee3b0ea5d40c105d6e728fc114470bb ↗
- https://git.kernel.org/stable/c/8418f55302fa1d2eeb73e16e345167e545c598a5 ↗
- https://git.kernel.org/stable/c/049584807f1d797fc3078b68035450a9769eb5c3 ↗
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html ↗