Use-after-free in Linux kernel - CVE-2019-18814

Vulnerability identifier: #VU24434

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-2019-18814

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when "aa_label_parse()" fails in "aa_audit_rule_init()" in security/apparmor/audit.c. A local user can execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Linux kernel
SUSE MicroOS
SUSE Linux Enterprise Module for Realtime
SUSE Linux Enterprise High Availability
SUSE Linux Enterprise Module for Basesystem
SUSE Linux Enterprise Module for Development Tools
SUSE Linux Enterprise Module for Legacy Software
SUSE Linux Enterprise Module for Live Patching
SUSE Linux Enterprise Workstation Extension
SUSE Linux Enterprise Module for Public Cloud
kernel-livepatch-SLE15-SP2_Update_12-debugsource
kernel-livepatch-5_3_18-24_61-default-debuginfo
kernel-livepatch-5_3_18-24_61-default
kernel-livepatch-SLE15-SP3_Update_1-debugsource
kernel-livepatch-5_3_18-59_5-default-debuginfo
kernel-livepatch-5_3_18-59_5-default
kernel-rt
kernel-rt-debuginfo
kernel-rt-debugsource
kernel-source-azure
kernel-devel-azure
kernel-azure-devel-debuginfo
kernel-azure-devel
kernel-syms-azure
kernel-azure
kernel-azure-debuginfo
kernel-azure-debugsource
kernel-docs
dlm-kmp-default-debuginfo
kernel-preempt-devel-debuginfo
kernel-preempt-devel
kernel-preempt-debugsource
kernel-preempt-debuginfo
kernel-syms
kernel-obs-build-debugsource
kernel-obs-build
reiserfs-kmp-default-debuginfo
reiserfs-kmp-default
kernel-source
kernel-default-devel
kernel-default-devel-debuginfo
kernel-preempt
kernel-devel
kernel-macros
cluster-md-kmp-default
cluster-md-kmp-default-debuginfo
dlm-kmp-default
gfs2-kmp-default
gfs2-kmp-default-debuginfo
ocfs2-kmp-default
ocfs2-kmp-default-debuginfo
kernel-default-livepatch
kernel-default-livepatch-devel
kernel-default
kernel-default-debuginfo
kernel-default-debugsource
kernel-default-extra
kernel-default-extra-debuginfo
kernel-preempt-extra
kernel-preempt-extra-debuginfo
kernel-default-base
kernel-rt_debug-devel
dlm-kmp-rt
cluster-md-kmp-rt-debuginfo
cluster-md-kmp-rt
dlm-kmp-rt-debuginfo
gfs2-kmp-rt
gfs2-kmp-rt-debuginfo
kernel-rt-devel
kernel-rt-devel-debuginfo
kernel-rt_debug-debuginfo
kernel-rt_debug-debugsource
kernel-rt_debug-devel-debuginfo
kernel-syms-rt
ocfs2-kmp-rt
ocfs2-kmp-rt-debuginfo
kernel-devel-rt
kernel-source-rt
kernel-zfcpdump
kernel-64kb
kernel-64kb-debuginfo
kernel-64kb-debugsource
kernel-64kb-devel
kernel-64kb-devel-debuginfo
kernel-zfcpdump-debuginfo
kernel-zfcpdump-debugsource

Install updates from vendor's website.

Linux kernel - update to 5.3.10
kernel-livepatch-SLE15-SP2_Update_12-debugsource - update to 1-5.3.4
kernel-livepatch-5_3_18-24_61-default-debuginfo - update to 1-5.3.4
kernel-livepatch-5_3_18-24_61-default - update to 1-5.3.4
kernel-livepatch-SLE15-SP3_Update_1-debugsource - update to 1-7.5.1
kernel-livepatch-5_3_18-59_5-default-debuginfo - update to 1-7.5.1
kernel-livepatch-5_3_18-59_5-default - update to 1-7.5.1
kernel-rt - addressed in versions 5.3.18-8.7.1, 5.3.18-33.1
kernel-rt-debuginfo - addressed in versions 5.3.18-8.7.1, 5.3.18-33.1
kernel-rt-debugsource - addressed in versions 5.3.18-8.7.1, 5.3.18-33.1
kernel-source-azure - addressed in versions 5.3.18-18.41.1, 5.3.18-38.3.1
kernel-devel-azure - addressed in versions 5.3.18-18.41.1, 5.3.18-38.3.1
kernel-azure-devel-debuginfo - addressed in versions 5.3.18-18.41.1, 5.3.18-38.3.1
kernel-azure-devel - addressed in versions 5.3.18-18.41.1, 5.3.18-38.3.1
kernel-syms-azure - addressed in versions 5.3.18-18.41.1, 5.3.18-38.3.1
kernel-azure - addressed in versions 5.3.18-18.41.1, 5.3.18-38.3.1
kernel-azure-debuginfo - addressed in versions 5.3.18-18.41.1, 5.3.18-38.3.1
kernel-azure-debugsource - addressed in versions 5.3.18-18.41.1, 5.3.18-38.3.1
kernel-docs - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
dlm-kmp-default-debuginfo - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-preempt-devel-debuginfo - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-preempt-devel - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-preempt-debugsource - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-preempt-debuginfo - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-syms - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.1
kernel-obs-build-debugsource - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.1
kernel-obs-build - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.1
reiserfs-kmp-default-debuginfo - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
reiserfs-kmp-default - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-source - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-devel - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-devel-debuginfo - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-preempt - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-devel - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-macros - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
cluster-md-kmp-default - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
cluster-md-kmp-default-debuginfo - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
dlm-kmp-default - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
gfs2-kmp-default - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
gfs2-kmp-default-debuginfo - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
ocfs2-kmp-default - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
ocfs2-kmp-default-debuginfo - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-livepatch - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-livepatch-devel - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-debuginfo - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-debugsource - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-extra - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-extra-debuginfo - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-preempt-extra - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-preempt-extra-debuginfo - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-base - addressed in versions 5.3.18-24.61.1.9.26.4, 5.3.18-59.5.2.18.2.2
kernel-rt_debug-devel - update to 5.3.18-33.1
dlm-kmp-rt - update to 5.3.18-33.1
cluster-md-kmp-rt-debuginfo - update to 5.3.18-33.1
cluster-md-kmp-rt - update to 5.3.18-33.1
dlm-kmp-rt-debuginfo - update to 5.3.18-33.1
gfs2-kmp-rt - update to 5.3.18-33.1
gfs2-kmp-rt-debuginfo - update to 5.3.18-33.1
kernel-rt-devel - update to 5.3.18-33.1
kernel-rt-devel-debuginfo - update to 5.3.18-33.1
kernel-rt_debug-debuginfo - update to 5.3.18-33.1
kernel-rt_debug-debugsource - update to 5.3.18-33.1
kernel-rt_debug-devel-debuginfo - update to 5.3.18-33.1
kernel-syms-rt - update to 5.3.18-33.1
ocfs2-kmp-rt - update to 5.3.18-33.1
ocfs2-kmp-rt-debuginfo - update to 5.3.18-33.1
kernel-devel-rt - update to 5.3.18-33.1
kernel-source-rt - update to 5.3.18-33.1
kernel-zfcpdump - update to 5.3.18-59.5.2
kernel-64kb - update to 5.3.18-59.5.2
kernel-64kb-debuginfo - update to 5.3.18-59.5.2
kernel-64kb-debugsource - update to 5.3.18-59.5.2
kernel-64kb-devel - update to 5.3.18-59.5.2
kernel-64kb-devel-debuginfo - update to 5.3.18-59.5.2
kernel-zfcpdump-debuginfo - update to 5.3.18-59.5.2
kernel-zfcpdump-debugsource - update to 5.3.18-59.5.2

• https://lore.kernel.org/patchwork/patch/1142523/
• https://support.f5.com/csp/article/K21561554?utm_source=f5support&utm_medium=RSS

• Multiple vulnerabilities in 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
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel