Out-of-bounds read in Linux kernel - CVE-2020-35519

Vulnerability identifier: #VU51552

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-35519

CWE-ID: CWE-125

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the x25_bind() function in net/x25/af_x25.c in the Linux kernel. A local user can run a specially crafted program to read contents of memory on the system.

Linux kernel
SUSE CaaS Platform
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE MicroOS
SUSE Enterprise Storage
SUSE OpenStack Cloud Crowbar
SUSE OpenStack Cloud
SUSE Linux Enterprise Server
SUSE Linux Enterprise Debuginfo
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Live Patching
SUSE Linux Enterprise High Availability
SUSE Linux Enterprise Real Time Extension
SUSE Linux Enterprise Workstation Extension
SUSE Linux Enterprise Software Development Kit
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Module for Live Patching
SUSE Linux Enterprise Module for Legacy Software
SUSE Linux Enterprise Module for Public Cloud
SUSE Linux Enterprise Module for Basesystem
SUSE Linux Enterprise Module for Realtime
SUSE Linux Enterprise Module for Development Tools
openEuler
Ubuntu
kernel-livepatch-4_12_14-150_72-default
kernel-livepatch-4_12_14-150_72-default-debuginfo
kernel-livepatch-4_12_14-197_89-default
kernel-livepatch-5_3_18-24_61-default
kernel-livepatch-5_3_18-24_61-default-debuginfo
kernel-livepatch-SLE15-SP2_Update_12-debugsource
kgraft-patch-4_12_14-95_74-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
kgraft-patch-4_12_14-122_66-default
kernel-ppc64-extra
kernel-xen-devel-debuginfo
kernel-xen-debugsource
kernel-xen-debuginfo
kernel-ec2-debugsource
kernel-ec2-debuginfo
kernel-trace-devel-debuginfo
kernel-default-devel-debuginfo
kernel-trace-debugsource
kernel-trace-debuginfo
kernel-default-debugsource
kernel-default-debuginfo
kernel-pae-extra
kernel-ppc64-debuginfo
kernel-trace-extra
kernel-xen-extra
kernel-default-extra
kernel-pae-devel
kernel-pae-base
kernel-pae
kernel-ppc64-devel
kernel-ppc64-base
kernel-ppc64
kernel-bigmem-devel
kernel-ec2
kernel-pae-debuginfo
kernel-pae-devel-debuginfo
kernel-pae-debugsource
kernel-default
kernel-default-base
kernel-default-devel
kernel-source
kernel-syms
kernel-trace
kernel-trace-base
kernel-trace-devel
kernel-bigmem-debuginfo
kernel-ec2-base
kernel-ec2-devel
kernel-xen
kernel-xen-base
kernel-xen-devel
kernel-default-man
kernel-bigmem
kernel-bigmem-base
kernel-ppc64-debugsource
kernel-bigmem-debugsource
cluster-md-kmp-rt
kernel-devel-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
kernel-rt-devel-debuginfo
kernel-rt_debug
kernel-rt_debug-debuginfo
kernel-rt_debug-debugsource
kernel-rt_debug-devel
kernel-rt_debug-devel-debuginfo
kernel-syms-rt
ocfs2-kmp-rt
ocfs2-kmp-rt-debuginfo
kernel-source-rt
kernel-azure-base
kernel-azure-debuginfo
kernel-azure-base-debuginfo
kernel-azure
kernel-azure-debugsource
kernel-source-azure
kernel-devel-azure
kernel-syms-azure
kernel-azure-devel
cluster-md-kmp-default
kernel-default-kgraft
kernel-default-kgraft-devel
kernel-macros
cluster-md-kmp-default-debuginfo
dlm-kmp-default
dlm-kmp-default-debuginfo
gfs2-kmp-default
gfs2-kmp-default-debuginfo
ocfs2-kmp-default
ocfs2-kmp-default-debuginfo
kernel-devel
kernel-default-base-debuginfo
kernel-obs-build-debugsource
kernel-default-extra-debuginfo
kernel-obs-build
kernel-docs
kernel-default-livepatch
kernel-zfcpdump-debuginfo
kernel-vanilla-base
kernel-vanilla-base-debuginfo
kernel-vanilla-debuginfo
kernel-vanilla-debugsource
reiserfs-kmp-default
reiserfs-kmp-default-debuginfo
kernel-zfcpdump-debugsource
kernel-default-livepatch-devel
python3-perf-debuginfo
kernel-tools-debuginfo
python3-perf
python2-perf
kernel-debugsource
python2-perf-debuginfo
bpftool
perf-debuginfo
kernel-tools-devel
kernel-tools
bpftool-debuginfo
perf
kernel
kernel-debuginfo
kernel-azure-devel-debuginfo
kernel-preempt-devel-debuginfo
kernel-preempt-devel
kernel-preempt-debugsource
kernel-preempt-debuginfo
kernel-preempt-extra
kernel-preempt-extra-debuginfo
kernel-preempt
kernel-64kb-devel-debuginfo
kernel-zfcpdump
kernel-64kb
kernel-64kb-debuginfo
kernel-64kb-debugsource
kernel-64kb-devel
linux-image-oem-20.04 (Ubuntu package)
linux-image-5.6.0-1056-oem (Ubuntu package)

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

kernel-livepatch-4_12_14-150_72-default - update to 1-1.3.1
kernel-livepatch-4_12_14-150_72-default-debuginfo - update to 1-1.3.1
kernel-livepatch-4_12_14-197_89-default - update to 1-3.3.2
kernel-livepatch-5_3_18-24_61-default - update to 1-5.3.4
kernel-livepatch-5_3_18-24_61-default-debuginfo - update to 1-5.3.4
kernel-livepatch-SLE15-SP2_Update_12-debugsource - update to 1-5.3.4
kgraft-patch-4_12_14-95_74-default - update to 1-6.3.1
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
kgraft-patch-4_12_14-122_66-default - update to 1-8.3.2
kernel-ppc64-extra - update to 3.0.101-108.126.1
kernel-xen-devel-debuginfo - update to 3.0.101-108.126.1
kernel-xen-debugsource - update to 3.0.101-108.126.1
kernel-xen-debuginfo - update to 3.0.101-108.126.1
kernel-ec2-debugsource - update to 3.0.101-108.126.1
kernel-ec2-debuginfo - update to 3.0.101-108.126.1
kernel-trace-devel-debuginfo - update to 3.0.101-108.126.1
kernel-default-devel-debuginfo - addressed in versions 3.0.101-108.126.1, 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-trace-debugsource - update to 3.0.101-108.126.1
kernel-trace-debuginfo - update to 3.0.101-108.126.1
kernel-default-debugsource - addressed in versions 3.0.101-108.126.1, 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-debuginfo - addressed in versions 3.0.101-108.126.1, 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-pae-extra - update to 3.0.101-108.126.1
kernel-ppc64-debuginfo - update to 3.0.101-108.126.1
kernel-trace-extra - update to 3.0.101-108.126.1
kernel-xen-extra - update to 3.0.101-108.126.1
kernel-default-extra - addressed in versions 3.0.101-108.126.1, 4.12.14-122.66.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-pae-devel - update to 3.0.101-108.126.1
kernel-pae-base - update to 3.0.101-108.126.1
kernel-pae - update to 3.0.101-108.126.1
kernel-ppc64-devel - update to 3.0.101-108.126.1
kernel-ppc64-base - update to 3.0.101-108.126.1
kernel-ppc64 - update to 3.0.101-108.126.1
kernel-bigmem-devel - update to 3.0.101-108.126.1
kernel-ec2 - update to 3.0.101-108.126.1
kernel-pae-debuginfo - update to 3.0.101-108.126.1
kernel-pae-devel-debuginfo - update to 3.0.101-108.126.1
kernel-pae-debugsource - update to 3.0.101-108.126.1
kernel-default - addressed in versions 3.0.101-108.126.1, 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-base - addressed in versions 3.0.101-108.126.1, 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1.9.26.4, 5.3.18-59.5.2.18.2.2
kernel-default-devel - addressed in versions 3.0.101-108.126.1, 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-source - addressed in versions 3.0.101-108.126.1, 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-syms - addressed in versions 3.0.101-108.126.1, 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.1
kernel-trace - update to 3.0.101-108.126.1
kernel-trace-base - update to 3.0.101-108.126.1
kernel-trace-devel - update to 3.0.101-108.126.1
kernel-bigmem-debuginfo - update to 3.0.101-108.126.1
kernel-ec2-base - update to 3.0.101-108.126.1
kernel-ec2-devel - update to 3.0.101-108.126.1
kernel-xen - update to 3.0.101-108.126.1
kernel-xen-base - update to 3.0.101-108.126.1
kernel-xen-devel - update to 3.0.101-108.126.1
kernel-default-man - addressed in versions 3.0.101-108.126.1, 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2
kernel-bigmem - update to 3.0.101-108.126.1
kernel-bigmem-base - update to 3.0.101-108.126.1
kernel-ppc64-debugsource - update to 3.0.101-108.126.1
kernel-bigmem-debugsource - update to 3.0.101-108.126.1
cluster-md-kmp-rt - addressed in versions 4.12.14-10.37.1, 5.3.18-33.1
kernel-devel-rt - addressed in versions 4.12.14-10.37.1, 5.3.18-33.1
cluster-md-kmp-rt-debuginfo - addressed in versions 4.12.14-10.37.1, 5.3.18-33.1
dlm-kmp-rt - addressed in versions 4.12.14-10.37.1, 5.3.18-33.1
dlm-kmp-rt-debuginfo - addressed in versions 4.12.14-10.37.1, 5.3.18-33.1
gfs2-kmp-rt - addressed in versions 4.12.14-10.37.1, 5.3.18-33.1
gfs2-kmp-rt-debuginfo - addressed in versions 4.12.14-10.37.1, 5.3.18-33.1
kernel-rt - addressed in versions 4.12.14-10.37.1, 5.3.18-8.7.1, 5.3.18-33.1
kernel-rt-base - update to 4.12.14-10.37.1
kernel-rt-base-debuginfo - update to 4.12.14-10.37.1
kernel-rt-debuginfo - addressed in versions 4.12.14-10.37.1, 5.3.18-8.7.1, 5.3.18-33.1
kernel-rt-debugsource - addressed in versions 4.12.14-10.37.1, 5.3.18-8.7.1, 5.3.18-33.1
kernel-rt-devel - addressed in versions 4.12.14-10.37.1, 5.3.18-33.1
kernel-rt-devel-debuginfo - addressed in versions 4.12.14-10.37.1, 5.3.18-33.1
kernel-rt_debug - update to 4.12.14-10.37.1
kernel-rt_debug-debuginfo - addressed in versions 4.12.14-10.37.1, 5.3.18-33.1
kernel-rt_debug-debugsource - addressed in versions 4.12.14-10.37.1, 5.3.18-33.1
kernel-rt_debug-devel - addressed in versions 4.12.14-10.37.1, 5.3.18-33.1
kernel-rt_debug-devel-debuginfo - addressed in versions 4.12.14-10.37.1, 5.3.18-33.1
kernel-syms-rt - addressed in versions 4.12.14-10.37.1, 5.3.18-33.1
ocfs2-kmp-rt - addressed in versions 4.12.14-10.37.1, 5.3.18-33.1
ocfs2-kmp-rt-debuginfo - addressed in versions 4.12.14-10.37.1, 5.3.18-33.1
kernel-source-rt - addressed in versions 4.12.14-10.37.1, 5.3.18-33.1
kernel-azure-base - update to 4.12.14-16.50.1
kernel-azure-debuginfo - addressed in versions 4.12.14-16.50.1, 5.3.18-18.41.1, 5.3.18-38.3.1
kernel-azure-base-debuginfo - update to 4.12.14-16.50.1
kernel-azure - addressed in versions 4.12.14-16.50.1, 5.3.18-18.41.1, 5.3.18-38.3.1
kernel-azure-debugsource - addressed in versions 4.12.14-16.50.1, 5.3.18-18.41.1, 5.3.18-38.3.1
kernel-source-azure - addressed in versions 4.12.14-16.50.1, 5.3.18-18.41.1, 5.3.18-38.3.1
kernel-devel-azure - addressed in versions 4.12.14-16.50.1, 5.3.18-18.41.1, 5.3.18-38.3.1
kernel-syms-azure - addressed in versions 4.12.14-16.50.1, 5.3.18-18.41.1, 5.3.18-38.3.1
kernel-azure-devel - addressed in versions 4.12.14-16.50.1, 5.3.18-18.41.1, 5.3.18-38.3.1
cluster-md-kmp-default - addressed in versions 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-kgraft - addressed in versions 4.12.14-95.74.1, 4.12.14-122.66.2
kernel-default-kgraft-devel - addressed in versions 4.12.14-95.74.1, 4.12.14-122.66.2
kernel-macros - addressed in versions 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
dlm-kmp-default - addressed in versions 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
gfs2-kmp-default - addressed in versions 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
ocfs2-kmp-default - addressed in versions 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-devel - addressed in versions 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-base-debuginfo - addressed in versions 4.12.14-95.74.1, 4.12.14-122.66.2, 4.12.14-197.89.2
kernel-obs-build-debugsource - addressed in versions 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.1
kernel-default-extra-debuginfo - addressed in versions 4.12.14-122.66.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-obs-build - addressed in versions 4.12.14-122.66.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.1
kernel-docs - addressed in versions 4.12.14-122.66.2, 4.12.14-150.72.2, 4.12.14-197.89.3, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-livepatch - addressed in versions 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-zfcpdump-debuginfo - addressed in versions 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-59.5.2
kernel-vanilla-base - update to 4.12.14-150.72.1
kernel-vanilla-base-debuginfo - update to 4.12.14-150.72.1
kernel-vanilla-debuginfo - update to 4.12.14-150.72.1
kernel-vanilla-debugsource - update to 4.12.14-150.72.1
reiserfs-kmp-default - addressed in versions 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
reiserfs-kmp-default-debuginfo - addressed in versions 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-zfcpdump-debugsource - addressed in versions 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-59.5.2
kernel-default-livepatch-devel - addressed in versions 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
python3-perf-debuginfo - update to 4.19.90-2106.3.0.0095
kernel-tools-debuginfo - update to 4.19.90-2106.3.0.0095
python3-perf - update to 4.19.90-2106.3.0.0095
python2-perf - update to 4.19.90-2106.3.0.0095
kernel-debugsource - update to 4.19.90-2106.3.0.0095
python2-perf-debuginfo - update to 4.19.90-2106.3.0.0095
bpftool - update to 4.19.90-2106.3.0.0095
perf-debuginfo - update to 4.19.90-2106.3.0.0095
kernel-tools-devel - update to 4.19.90-2106.3.0.0095
kernel-tools - update to 4.19.90-2106.3.0.0095
kernel-devel - update to 4.19.90-2106.3.0.0095
bpftool-debuginfo - update to 4.19.90-2106.3.0.0095
kernel-source - update to 4.19.90-2106.3.0.0095
perf - update to 4.19.90-2106.3.0.0095
kernel - update to 4.19.90-2106.3.0.0095
kernel-debuginfo - update to 4.19.90-2106.3.0.0095
kernel-azure-devel-debuginfo - addressed in versions 5.3.18-18.41.1, 5.3.18-38.3.1
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-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-preempt - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-64kb-devel-debuginfo - update to 5.3.18-59.5.2
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
linux-image-oem-20.04 (Ubuntu package) - update to 5.6.0.1056.52
linux-image-5.6.0-1056-oem (Ubuntu package) - update to 5.6.0-1056.60

• http://seclists.org/oss-sec/2021/q1/228

• Information disclosure in x25_bind() 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
• 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
• SUSE update for the Linux Kernel
• Ubuntu update for linux-oem-5.6
• openEuler 20.03 LTS SP1 update for kernel