Use-after-free in Linux kernel - CVE-2018-9517

Vulnerability identifier: #VU19987

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-2018-9517

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in pppol2tp_connect. A local user can trigger memory corruption and escalate privileges on the system.

Linux kernel
SUSE Linux Enterprise Server 11
SUSE CaaS Platform
SUSE Enterprise Storage
Red Hat Enterprise Linux for Real Time for NFV
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 for Power, little endian
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux Server
SUSE OpenStack Cloud
SUSE OpenStack Cloud Crowbar
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE
SUSE Linux Enterprise Server
SUSE Linux Enterprise High Availability
SUSE Linux Enterprise Live Patching
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Workstation Extension
SUSE Linux Enterprise Software Development Kit
SUSE Linux Enterprise Real Time Extension
Slackware Linux
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Module for Live Patching

kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel-livepatch-4_12_14-150_78-default
kernel-livepatch-4_12_14-150_78-default-debuginfo
kernel-livepatch-4_12_14-197_102-default
kgraft-patch-4_12_14-95_83-default
kgraft-patch-4_12_14-122_88-default
kernel-trace-devel
kernel-default-devel
kernel-ec2-base
kernel-default-base
kernel-source
kernel-xen-base
kernel-trace-base
kernel-syms
kernel-xen-devel
kernel-ec2-devel
kernel-xen
kernel-ec2
kernel-trace
kernel-default
kernel-macros
kernel-devel
kernel-default-debugsource
kernel-default-debuginfo
kernel-default-base-debuginfo
linux-4.4.227/kernel-modules
linux-4.4.227/kernel-generic
linux-4.4.227/kernel-huge
linux-4.4.227/kernel-headers
kernel-devel-rt
kernel-source-rt
kernel-syms-rt
kernel-rt-devel
cluster-md-kmp-rt
cluster-md-kmp-rt-debuginfo
dlm-kmp-rt
dlm-kmp-rt-debuginfo
gfs2-kmp-rt
gfs2-kmp-rt-debuginfo
kernel-rt
kernel-rt-base
kernel-rt-base-debuginfo
kernel-rt-debuginfo
kernel-rt-debugsource
kernel-rt-devel-debuginfo
kernel-rt_debug
kernel-rt_debug-debuginfo
kernel-rt_debug-debugsource
kernel-rt_debug-devel
kernel-rt_debug-devel-debuginfo
ocfs2-kmp-rt
ocfs2-kmp-rt-debuginfo
kernel-devel-azure
kernel-source-azure
kernel-syms-azure
kernel-azure-base-debuginfo
kernel-azure-debugsource
kernel-azure-debuginfo
kernel-azure
kernel-azure-devel
kernel-azure-base
ocfs2-kmp-default-debuginfo
ocfs2-kmp-default
gfs2-kmp-default-debuginfo
gfs2-kmp-default
dlm-kmp-default-debuginfo
dlm-kmp-default
cluster-md-kmp-default-debuginfo
cluster-md-kmp-default
kernel-default-kgraft-devel
kernel-default-kgraft
kernel-default-man
kernel-default-devel-debuginfo
kernel-default-extra-debuginfo
kernel-default-extra
kernel-docs
kernel-obs-build-debugsource
kernel-obs-build
reiserfs-kmp-default-debuginfo
kernel-zfcpdump-debuginfo
kernel-zfcpdump-debugsource
kernel-default-livepatch
reiserfs-kmp-default
kernel-vanilla-debugsource
kernel-vanilla-base
kernel-vanilla-base-debuginfo
kernel-vanilla-debuginfo
kernel-default-livepatch-devel
Red Hat Virtualization Host

Install updates from vendor's website.

Linux kernel - update to 3.10.107
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-livepatch-4_12_14-150_78-default - update to 1-1.3.1
kernel-livepatch-4_12_14-150_78-default-debuginfo - update to 1-1.3.1
kernel-livepatch-4_12_14-197_102-default - update to 1-3.3.1
kgraft-patch-4_12_14-95_83-default - update to 1-6.3.1
kgraft-patch-4_12_14-122_88-default - update to 1-8.5.1
kernel-trace-devel - update to 3.0.101-108.141.1
kernel-default-devel - addressed in versions 3.0.101-108.141.1, 4.4.121-92.199.1, 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
kernel-ec2-base - update to 3.0.101-108.141.1
kernel-default-base - addressed in versions 3.0.101-108.141.1, 4.4.121-92.199.1, 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
kernel-source - addressed in versions 3.0.101-108.141.1, 4.4.121-92.199.1, 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
kernel-xen-base - update to 3.0.101-108.141.1
kernel-trace-base - update to 3.0.101-108.141.1
kernel-syms - addressed in versions 3.0.101-108.141.1, 4.4.121-92.199.1, 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
kernel-xen-devel - update to 3.0.101-108.141.1
kernel-ec2-devel - update to 3.0.101-108.141.1
kernel-xen - update to 3.0.101-108.141.1
kernel-ec2 - update to 3.0.101-108.141.1
kernel-trace - update to 3.0.101-108.141.1
kernel-default - addressed in versions 3.0.101-108.141.1, 4.4.121-92.199.1, 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
kernel-macros - addressed in versions 4.4.121-92.199.1, 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
kernel-devel - addressed in versions 4.4.121-92.199.1, 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
kernel-default-debugsource - addressed in versions 4.4.121-92.199.1, 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
kernel-default-debuginfo - addressed in versions 4.4.121-92.199.1, 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
kernel-default-base-debuginfo - addressed in versions 4.4.121-92.199.1, 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-197.102.2
linux-4.4.227/kernel-modules - update to 4.4.227
linux-4.4.227/kernel-generic - update to 4.4.227
linux-4.4.227/kernel-huge - update to 4.4.227
linux-4.4.227/kernel-headers - update to 4.4.227_smp
kernel-devel-rt - update to 4.12.14-10.57.1
kernel-source-rt - update to 4.12.14-10.57.1
kernel-syms-rt - update to 4.12.14-10.57.1
kernel-rt-devel - update to 4.12.14-10.57.2
cluster-md-kmp-rt - update to 4.12.14-10.57.2
cluster-md-kmp-rt-debuginfo - update to 4.12.14-10.57.2
dlm-kmp-rt - update to 4.12.14-10.57.2
dlm-kmp-rt-debuginfo - update to 4.12.14-10.57.2
gfs2-kmp-rt - update to 4.12.14-10.57.2
gfs2-kmp-rt-debuginfo - update to 4.12.14-10.57.2
kernel-rt - update to 4.12.14-10.57.2
kernel-rt-base - update to 4.12.14-10.57.2
kernel-rt-base-debuginfo - update to 4.12.14-10.57.2
kernel-rt-debuginfo - update to 4.12.14-10.57.2
kernel-rt-debugsource - update to 4.12.14-10.57.2
kernel-rt-devel-debuginfo - update to 4.12.14-10.57.2
kernel-rt_debug - update to 4.12.14-10.57.2
kernel-rt_debug-debuginfo - update to 4.12.14-10.57.2
kernel-rt_debug-debugsource - update to 4.12.14-10.57.2
kernel-rt_debug-devel - update to 4.12.14-10.57.2
kernel-rt_debug-devel-debuginfo - update to 4.12.14-10.57.2
ocfs2-kmp-rt - update to 4.12.14-10.57.2
ocfs2-kmp-rt-debuginfo - update to 4.12.14-10.57.2
kernel-devel-azure - update to 4.12.14-16.73.1
kernel-source-azure - update to 4.12.14-16.73.1
kernel-syms-azure - update to 4.12.14-16.73.1
kernel-azure-base-debuginfo - update to 4.12.14-16.73.2
kernel-azure-debugsource - update to 4.12.14-16.73.2
kernel-azure-debuginfo - update to 4.12.14-16.73.2
kernel-azure - update to 4.12.14-16.73.2
kernel-azure-devel - update to 4.12.14-16.73.2
kernel-azure-base - update to 4.12.14-16.73.2
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
ocfs2-kmp-default - addressed in versions 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
gfs2-kmp-default - addressed in versions 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
dlm-kmp-default - addressed in versions 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
cluster-md-kmp-default - addressed in versions 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
kernel-default-kgraft-devel - addressed in versions 4.12.14-95.83.2, 4.12.14-122.88.1
kernel-default-kgraft - addressed in versions 4.12.14-95.83.2, 4.12.14-122.88.1
kernel-default-man - addressed in versions 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
kernel-default-devel-debuginfo - addressed in versions 4.12.14-95.83.2, 4.12.14-122.88.1, 4.12.14-150.78.1, 4.12.14-197.102.2
kernel-default-extra-debuginfo - update to 4.12.14-122.88.1
kernel-default-extra - update to 4.12.14-122.88.1
kernel-docs - addressed in versions 4.12.14-122.88.1, 4.12.14-150.78.2, 4.12.14-197.102.2
kernel-obs-build-debugsource - addressed in versions 4.12.14-122.88.2, 4.12.14-150.78.2, 4.12.14-197.102.1
kernel-obs-build - addressed in versions 4.12.14-122.88.2, 4.12.14-150.78.2, 4.12.14-197.102.1
reiserfs-kmp-default-debuginfo - addressed in versions 4.12.14-150.78.1, 4.12.14-197.102.2
kernel-zfcpdump-debuginfo - addressed in versions 4.12.14-150.78.1, 4.12.14-197.102.2
kernel-zfcpdump-debugsource - addressed in versions 4.12.14-150.78.1, 4.12.14-197.102.2
kernel-default-livepatch - addressed in versions 4.12.14-150.78.1, 4.12.14-197.102.2
reiserfs-kmp-default - addressed in versions 4.12.14-150.78.1, 4.12.14-197.102.2
kernel-vanilla-debugsource - update to 4.12.14-150.78.1
kernel-vanilla-base - update to 4.12.14-150.78.1
kernel-vanilla-base-debuginfo - update to 4.12.14-150.78.1
kernel-vanilla-debuginfo - update to 4.12.14-150.78.1
kernel-default-livepatch-devel - update to 4.12.14-197.102.2

• https://source.android.com/security/bulletin/pixel/2018-09-01
• https://usn.ubuntu.com/3932-1/
• https://usn.ubuntu.com/3932-2/

• Red Hat update for kernel-rt
• Red Hat update for kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• Slackware Linux update for kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel