Race condition in Linux kernel - CVE-2018-14625

Vulnerability identifier: #VU16514

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-2018-14625

CWE-ID: CWE-362

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local attacker to obtain potentially sensitive information.

The weakness exists due to a race condition between connect() and close() function. A local attacker can use the AF_VSOCK protocol to obtain sensitive information possibly intercept or corrupt AF_VSOCK messages destined to other clients.

Linux kernel
Red Hat Enterprise Linux for Power 9
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for IBM System z (Structure A)
Fedora

kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel-alt (Red Hat package)
linux (Ubuntu package)
linux-hwe (Ubuntu package)
kernel
kernel-headers
kernel-tools
Red Hat Virtualization Host

Update to version 4.14.88.

Linux kernel - addressed in versions 4.2, 4.9.145, 4.14.88, 4.19.9
kernel (Red Hat package) - update to 3.10.0-1062.el7
kernel-rt (Red Hat package) - update to 3.10.0-1062.rt56.1022.el7
kernel-alt (Red Hat package) - update to 4.14.0-115.16.1.el7a
linux (Ubuntu package) - update to 4.18.0-15.16
linux-hwe (Ubuntu package) - update to 4.18.0-15.16~18.04.1
kernel - addressed in versions 4.19.9-200.fc28, 4.19.9-300.fc29, 4.19.10-200.fc28
kernel-headers - addressed in versions 4.19.9-200.fc28, 4.19.9-300.fc29, 4.19.10-200.fc28
kernel-tools - update to 4.19.10-200.fc28

• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.88
• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20
• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.145
• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.9

• Ubuntu update for Linux kernel
• Red Hat update for kernel-rt
• Red Hat update for kernel
• Red Hat update for kernel-alt
• Fedora 28 update for kernel, kernel-headers
• Fedora 29 update for kernel, kernel-headers
• Fedora 28 update for kernel, kernel-headers, kernel-tools