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:
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 |
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 |