CVE-2024-41091
tun: add missing verification for short frame
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
INFO
Published Date :
July 29, 2024, 7:15 a.m.
Last Modified :
Nov. 3, 2025, 10:17 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update all affected kernel and package components.
- Apply available updates for your specific Linux distribution.
- Reboot the system if required by the updates.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-41091.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-41091 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-41091
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-41091 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-41091 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 03, 2025
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html -
Initial Analysis by [email protected]
Sep. 25, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H Added CWE CWE-125 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.164 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.223 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.281 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.102 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.10 up to (excluding) 6.10.2 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.43 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.9.12 Added Reference Type CVE: https://git.kernel.org/stable/c/049584807f1d797fc3078b68035450a9769eb5c3 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/049584807f1d797fc3078b68035450a9769eb5c3 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/32b0aaba5dbc85816898167d9b5d45a22eae82e9 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/32b0aaba5dbc85816898167d9b5d45a22eae82e9 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/589382f50b4a5d90d16d8bc9dcbc0e927a3e39b2 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/589382f50b4a5d90d16d8bc9dcbc0e927a3e39b2 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/6100e0237204890269e3f934acfc50d35fd6f319 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/6100e0237204890269e3f934acfc50d35fd6f319 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/8418f55302fa1d2eeb73e16e345167e545c598a5 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8418f55302fa1d2eeb73e16e345167e545c598a5 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/a9d1c27e2ee3b0ea5d40c105d6e728fc114470bb Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a9d1c27e2ee3b0ea5d40c105d6e728fc114470bb Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/ad6b3f622ccfb4bfedfa53b6ebd91c3d1d04f146 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ad6b3f622ccfb4bfedfa53b6ebd91c3d1d04f146 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/d5ad89b7d01ed4e66fd04734fc63d6e78536692a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d5ad89b7d01ed4e66fd04734fc63d6e78536692a Types: Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/049584807f1d797fc3078b68035450a9769eb5c3 Added Reference https://git.kernel.org/stable/c/32b0aaba5dbc85816898167d9b5d45a22eae82e9 Added Reference https://git.kernel.org/stable/c/589382f50b4a5d90d16d8bc9dcbc0e927a3e39b2 Added Reference https://git.kernel.org/stable/c/6100e0237204890269e3f934acfc50d35fd6f319 Added Reference https://git.kernel.org/stable/c/8418f55302fa1d2eeb73e16e345167e545c598a5 Added Reference https://git.kernel.org/stable/c/a9d1c27e2ee3b0ea5d40c105d6e728fc114470bb Added Reference https://git.kernel.org/stable/c/ad6b3f622ccfb4bfedfa53b6ebd91c3d1d04f146 Added Reference https://git.kernel.org/stable/c/d5ad89b7d01ed4e66fd04734fc63d6e78536692a -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 29, 2024
Action Type Old Value New Value Added 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 Added Reference kernel.org https://git.kernel.org/stable/c/32b0aaba5dbc85816898167d9b5d45a22eae82e9 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/6100e0237204890269e3f934acfc50d35fd6f319 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/589382f50b4a5d90d16d8bc9dcbc0e927a3e39b2 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ad6b3f622ccfb4bfedfa53b6ebd91c3d1d04f146 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d5ad89b7d01ed4e66fd04734fc63d6e78536692a [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/a9d1c27e2ee3b0ea5d40c105d6e728fc114470bb [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/8418f55302fa1d2eeb73e16e345167e545c598a5 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/049584807f1d797fc3078b68035450a9769eb5c3 [No types assigned]