A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.
The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT.
We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 1 | kernel | 2024-02-14 20:03 | ALAS-2024-1919 |
Amazon Linux 2 - Core | kernel | 2024-02-15 03:52 | ALAS2-2024-2453 |
Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2024-02-15 04:09 | ALAS2KERNEL-5.10-2024-050 |
Amazon Linux 2 - Kernel-5.15 Extra | kernel | 2024-02-15 04:09 | ALAS2KERNEL-5.15-2024-038 |
Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2024-02-15 04:09 | ALAS2KERNEL-5.4-2024-060 |
Amazon Linux 2023 | kernel | 2024-02-15 02:51 | ALAS2023-2024-517 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
NVD | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |