Denial of service in Red Hat Enterprise Linux for x86_64 - CVE-2018-10872

Vulnerability identifier: #VU13877

CSH Severity: Low

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-10872

CWE-ID: CWE-264

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

The vulnerability exists due to a flaw in the way the Linux kernel handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, processor does not deliver interrupts and exceptions, they are delivered once the first instruction after the stack switch is executed. A remote attacker can crash the system kernel resulting in DoS.

Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems)
Red Hat Enterprise Linux Server - Extended Life Cycle Support
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

kernel (Red Hat package)

Install update from vendor's website.

kernel (Red Hat package) - update to 2.6.32-754.2.1.el6

• https://access.redhat.com/security/cve/cve-2018-10872

• Denial of service in Red Hat Enterprise Linux
• Red Hat update for kernel