Out-of-bounds read in Linux kernel - CVE-2019-15090

Vulnerability identifier: #VU20812

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-15090

CWE-ID: CWE-125

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists in the QLogic QEDI iSCSI Initiator Driver due to a boundary condition in "drivers/scsi/qedi/qedi_dbg.c". A local authenticated user can trigger out-of-bounds read error and read contents of memory on the system.

Linux kernel
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat CodeReady Linux Builder for x86_64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for ARM 64
kernel (Red Hat package)
kernel-rt (Red Hat package)

Install updates from vendor's website.

Linux kernel - update to 5.1.12
kernel (Red Hat package) - update to 4.18.0-193.el8
kernel-rt (Red Hat package) - update to 4.18.0-193.rt13.51.el8

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.12
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c09581a52765a85f19fc35340127396d5e3379cc
• https://github.com/torvalds/linux/commit/c09581a52765a85f19fc35340127396d5e3379cc
• https://usn.ubuntu.com/4115-1/
• https://usn.ubuntu.com/4118-1/

• Out-of-bounds read in Linux kernel
• Red Hat Enterprise Linux 8 update for kernel-rt
• Red Hat Enterprise Linux 8 update for kernel