Race condition in Linux kernel - CVE-2019-14898

Vulnerability identifier: #VU95687

CSH Severity: Low

CVSS v4: 7.3 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-14898

CWE-ID: CWE-362

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to execute arbitrary code.

The fix for CVE-2019-11599, affecting the Linux kernel before 5.0.10 was not complete. A local user could use this flaw to obtain sensitive information, cause a denial of service, or possibly have other unspecified impacts by triggering a race condition with mmget_not_zero or get_task_mm calls.

Linux kernel
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 IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux Server - TUS
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Virtualization Host
kernel (Red Hat package)
kernel-rt (Red Hat package)

Install update from vendor's repository.

kernel (Red Hat package) - addressed in versions 3.10.0-1062.12.1.el7, 4.18.0-147.5.1.el8_1
kernel-rt (Red Hat package) - addressed in versions 3.10.0-1062.12.1.rt56.1042.el7, 4.18.0-147.5.1.rt24.98.el8_1

• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.37
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14898
• https://bugs.chromium.org/p/project-zero/issues/detail?id=1790
• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.114
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.10
• https://security.netapp.com/advisory/ntap-20200608-0001/
• https://www.oracle.com/security-alerts/cpuApr2021.html

• Race condition in Linux kernel
• Red Hat Enterprise Linux 8 update for kernel-rt
• Red Hat Enterprise Linux 8 update for kernel
• Red Hat Enterprise Linux 7 update for kernel-rt
• Red Hat Enterprise Linux 7 update for kernel