Buffer overflow in Linux kernel - CVE-2018-20855

Vulnerability details

The vulnerability allows a local attacker to access sensitive information on a targeted system.

The vulnerability exists due to insufficient initialization of the "mlx5_ib_create_qp_resp" function in the "create_qp_common" function in the "drivers/infiniband/hw/mlx5/qp.c" file. A local authenticated attacker can access the system, execute an application that submits malicious input, leak stack memory and access sensitive information on a targeted system.

Affected software

How to mitigate CVE-2018-20855

External References

• 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

Related Security Bulletins

• Buffer overflow in Linux kernel
• OpenSUSE Linux update for the Linux Kernel
• OpenSUSE Linux update for the Linux Kernel