A stack buffer overflow issue was found in the get_raw_socket() routine of the Host kernel accelerator for virtio net (vhost-net) driver. It could occur while doing an ictol(VHOST_NET_SET_BACKEND) call, and retrieving socket name in a kernel stack variable via get_raw_socket(). A user able to perform ioctl(2) calls on the '/dev/vhost-net' device may use this flaw to crash the kernel resulting in DoS issue.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 1 | kernel | 2020-04-20 19:25 | ALAS-2020-1360 |
Amazon Linux 2 - Core | kernel | 2020-03-23 16:25 | ALAS2-2020-1405 |
Amazon Linux 2 - Livepatch Extra | kernel-livepatch-4.14.165-131.185 | 2020-05-29 20:13 | ALAS2LIVEPATCH-2020-014 |
Amazon Linux 2 - Livepatch Extra | kernel-livepatch-4.14.165-133.209 | 2020-05-29 20:13 | ALAS2LIVEPATCH-2020-015 |
Amazon Linux 2 - Livepatch Extra | kernel-livepatch-4.14.171-136.231 | 2020-05-29 20:13 | ALAS2LIVEPATCH-2020-016 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv3 | 5.3 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H |
NVD | CVSSv2 | 5.4 | AV:L/AC:M/Au:N/C:N/I:P/A:C |
NVD | CVSSv3 | 5.3 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H |