UBUNTU-CVE-2024-41090
In the Linux kernel, the following vulnerability has been resolved: tap: add missing verification for short frame The cited commit missed to check against the validity of the frame length in the tap_get_user_xdp() path, which could cause a corrupted skb to be sent downstack. Even before the skb is transmitted, the tap_get_user_xdp()-->skb_set_network_header() may assume the size is more 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, tap_get_user() already prohibits short frame which has the length less than Ethernet header size from being transmitted. This is to drop any frame shorter than the Ethernet header size just like how tap_get_user() does. CVE: CVE-2024-41090
02 / AFFECTED SOFTWARE
Affected packages
33 explicit affected versions
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52 explicit affected versions
7 explicit affected versions
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10 explicit affected versions
14 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
44 explicit affected versions
37 explicit affected versions
15 explicit affected versions
14 explicit affected versions
38 explicit affected versions
47 explicit affected versions
9 explicit affected versions
47 explicit affected versions
11 explicit affected versions
55 explicit affected versions
7 explicit affected versions
28 explicit affected versions
59 explicit affected versions
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53 explicit affected versions
13 explicit affected versions
43 explicit affected versions
53 explicit affected versions
10 explicit affected versions
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10 explicit affected versions
14 explicit affected versions
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4 explicit affected versions
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11 explicit affected versions
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03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: tap: add missing verification for short frame The cited commit missed to check against the validity of the frame length in the tap_get_user_xdp() path, which could cause a corrupted skb to be sent downstack. Even before the skb is transmitted, the tap_get_user_xdp()-->skb_set_network_header() may assume the size is more 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, tap_get_user() already prohibits short frame which has the length less than Ethernet header size from being transmitted. This is to drop any frame shorter than the Ethernet header size just like how tap_get_user() does. CVE: CVE-2024-41090
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/ed7f2afdd0e043a397677e597ced0830b83ba0b3
- https://git.kernel.org/stable/c/73d462a38d5f782b7c872fe9ae8393d9ef5483da
- https://git.kernel.org/stable/c/7431144b406ae82807eb87d8c98e518475b0450f
- https://git.kernel.org/stable/c/8be915fc5ff9a5e296f6538be12ea75a1a93bdea
- https://git.kernel.org/stable/c/aa6a5704cab861c9b2ae9f475076e1881e87f5aa
- https://git.kernel.org/stable/c/e1a786b9bbb767fd1c922d424aaa8078cc542309
- https://git.kernel.org/stable/c/e5e5e63c506b93b89b01f522b6a7343585f784e6
- https://git.kernel.org/stable/c/ed7f2afdd0e043a397677e597ced0830b83ba0b3
- https://git.kernel.org/stable/c/ee93e6da30377cf2a75e16cd32bb9fcd86a61c46
- https://ubuntu.com/security/CVE-2024-41090
- https://ubuntu.com/security/notices/USN-7088-1
- https://ubuntu.com/security/notices/USN-7088-2
- https://ubuntu.com/security/notices/USN-7088-3
- https://ubuntu.com/security/notices/USN-7088-4
- https://ubuntu.com/security/notices/USN-7088-5
- https://ubuntu.com/security/notices/USN-7089-1
- https://ubuntu.com/security/notices/USN-7089-2
- https://ubuntu.com/security/notices/USN-7089-3
- https://ubuntu.com/security/notices/USN-7089-4
- https://ubuntu.com/security/notices/USN-7089-5
- https://ubuntu.com/security/notices/USN-7089-6
- https://ubuntu.com/security/notices/USN-7089-7
- https://ubuntu.com/security/notices/USN-7090-1
- https://ubuntu.com/security/notices/USN-7095-1
- https://ubuntu.com/security/notices/USN-7100-1
- https://ubuntu.com/security/notices/USN-7100-2
- https://ubuntu.com/security/notices/USN-7119-1
- https://ubuntu.com/security/notices/USN-7123-1
- https://ubuntu.com/security/notices/USN-7144-1
- https://ubuntu.com/security/notices/USN-7156-1
- https://ubuntu.com/security/notices/USN-7194-1
- https://www.cve.org/CVERecord?id=CVE-2024-41090