Error handling in Linux kernel - CVE-2018-1000199

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Main Vulnerability Database Vulnerabilities #VU12337

Error handling in Linux kernel - CVE-2018-1000199

Published: May 2, 2018 / Updated: May 2, 2018


Vulnerability identifier: #VU12337
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-1000199
CWE-ID: CWE-388
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in the modify_user_hw_breakpoint() function due to error handling flaw. A local attacker can cause the service to crash.

Affected software

Linux kernel
Debian Linux
Amazon Linux AMI
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power 9
Red Hat Enterprise Linux for IBM System z (Structure A)
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux Server - Extended Update Support
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 for Power, little endian - Extended Update Support
SUSE Linux

MRG Realtime
kernel (Red Hat package)
kernel-rt (Red Hat package)
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
openSUSE Leap
kernel-alt (Red Hat package)

How to mitigate CVE-2018-1000199

Install update from vendor's website.

kernel (Red Hat package) - addressed in versions 3.10.0-327.66.3.el7, 3.10.0-514.48.3.el7, 3.10.0-693.25.4.el7
kernel-rt (Red Hat package) - addressed in versions 3.10.0-693.25.4.rt56.613.el6rt, 3.10.0-862.2.3.rt56.806.el7
kernel-alt (Red Hat package) - update to 4.14.0-49.2.2.el7a

External References

Related Security Bulletins