A buffer overflow flaw in the Linux kernel BPF subsystem was found in the way users run BPF with long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions. A local user could use this flaw to crash the system or escalate their privileges on the system.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 1 | kernel | 2022-03-07 23:19 | ALAS-2022-1571 |
Amazon Linux 2 - Core | kernel | 2022-03-07 23:32 | ALAS2-2022-1761 |
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 | CVSSv2 | 4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
NVD | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |