A flaw was found in the Linux kernels eBPF verification code. By default accessing the eBPF verifier is only accessible to privileged users with CAP_SYS_ADMIN. A flaw that triggers Integer underflow when restricting speculative pointer arithmetic allows unprivileged local users to leak the content of kernel memory. The highest threat from this vulnerability is to data confidentiality.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 2 - Core | kernel | 2021-04-20 17:55 | ALAS2-2021-1627 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv3 | 6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H |
NVD | CVSSv2 | 3.6 | AV:L/AC:L/Au:N/C:P/I:N/A:P |
NVD | CVSSv3 | 6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H |