CVE-2018-20855 Information

Description

An issue was discovered in the Linux kernel before 4.18.7. In create_qp_common in drivers/infiniband/hw/mlx5/qp.c mlx5_ib_create_qp_resp was never initialized resulting in a leak of stack memory to userspace.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0625b4ba1a5d4703c7fb01c497bd6c156908af00 https://github.com/torvalds/linux/commit/0625b4ba1a5d4703c7fb01c497bd6c156908af00 https://security.netapp.com/advisory/ntap-20190905-0002/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

3.3