Double-free memory error in Linux kernel - CVE-2018-10902

Vulnerability identifier: #VU14490

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-10902

CWE-ID: CWE-415

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to double-free memory error in snd_rawmidi_input_params() and snd_rawmidi_output_status() in 'rawmidi.c'. A local attacker can gain elevated privileges and execute arbitrary code.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Linux kernel
Red Hat Enterprise Linux for Power, big endian
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 Scientific Computing
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 Power, little endian - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support

MRG Realtime
kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel-alt (Red Hat package)
Data Computing Appliance (DCA)

Install update from vendor's website.

Linux kernel - update to 4.17.15
kernel (Red Hat package) - addressed in versions 2.6.32-754.11.1.el6, 3.10.0-862.44.2.el7
kernel-rt (Red Hat package) - update to 3.10.0-693.46.1.rt56.639.el6rt
Data Computing Appliance (DCA) - update to 3.5.3.0
kernel-alt (Red Hat package) - update to 4.14.0-115.14.1.el7a

• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=39675f7a7c7e7702f7d534...

• Red Hat update for kernel-rt
• Red Hat update for kernel
• Red Hat 7.5 update for kernel
• Multiple vulnerabilities in Dell EMC Data Computing Appliance (DCA)
• Red Hat Enterprise Linux 7 update for kernel-alt