0.0
NA
CVE-2024-41091
Linux TUN Network Stack Ethernet Header Length Validation Buffer Overflow
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 :

July 29, 2024, 2:12 p.m.

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remotely Exploitable :

No

Impact Score :

Exploitability Score :

Affected Products

The following products are affected by CVE-2024-41091 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
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.

URL Resource
https://git.kernel.org/stable/c/049584807f1d797fc3078b68035450a9769eb5c3
https://git.kernel.org/stable/c/32b0aaba5dbc85816898167d9b5d45a22eae82e9
https://git.kernel.org/stable/c/589382f50b4a5d90d16d8bc9dcbc0e927a3e39b2
https://git.kernel.org/stable/c/6100e0237204890269e3f934acfc50d35fd6f319
https://git.kernel.org/stable/c/8418f55302fa1d2eeb73e16e345167e545c598a5
https://git.kernel.org/stable/c/a9d1c27e2ee3b0ea5d40c105d6e728fc114470bb
https://git.kernel.org/stable/c/ad6b3f622ccfb4bfedfa53b6ebd91c3d1d04f146
https://git.kernel.org/stable/c/d5ad89b7d01ed4e66fd04734fc63d6e78536692a

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.

  • 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]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
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.

NONE - Vulnerability Scoring System
: