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CVE-2022-48651

Public on 2024-04-28
Modified on 2024-05-18
Description

In the Linux kernel, the following vulnerability has been resolved: ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header If an AF_PACKET socket is used to send packets through ipvlan and the default xmit function of the AF_PACKET socket is changed from dev_queue_xmit() to packet_direct_xmit() via setsockopt() with the option name of PACKET_QDISC_BYPASS, the skb->mac_header may not be reset and remains as the initial value of 65535, this may trigger slab-out-of-bounds bugs as following:

Severity
Medium
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CVSS v3 Base Score
5.5
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 kernel 2022-12-01 17:33 ALAS-2022-1645
Amazon Linux 2 - Core kernel 2022-10-31 19:40 ALAS2-2022-1876
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-10-17 22:06 ALAS2KERNEL-5.10-2022-021
Amazon Linux 2 - Kernel-5.15 Extra kernel 2022-10-17 22:06 ALAS2KERNEL-5.15-2022-009
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-10-17 22:06 ALAS2KERNEL-5.4-2022-037

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H