Memory corruption in Linux kernel - CVE-2018-8087

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Main Vulnerability Database Vulnerabilities #VU11137

Memory corruption in Linux kernel - CVE-2018-8087

Published: March 16, 2018 / Updated: March 20, 2018


Vulnerability identifier: #VU11137
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-8087
CWE-ID: CWE-401
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 hwsim_new_radio_nl function due to memory leak. A local attacker can trigger memory corruption and cause the service the crash.

Affected software

Linux kernel
Debian Linux
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for Real Time
SUSE Linux
Fedora

kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel
Red Hat Virtualization Host

How to mitigate CVE-2018-8087

Install update from vendor's website.

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 - addressed in versions 4.15.10-200.fc26, 4.15.10-300.fc27

External References

Related Security Bulletins