Memory leak in Linux kernel - CVE-2019-19074

Vulnerability identifier: #VU23029

CSH Severity: Medium

CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-19074

CWE-ID: CWE-401

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the "ath9k_wmi_cmd()" function in "drivers/net/wireless/ath/ath9k/wmi.c" file. A remote attacker on the local network can cause a denial of service condition (memory consumption).

Linux kernel
Anolis OS
Red Hat Enterprise Linux for Real Time for NFV
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for Real Time
Slackware Linux
Ubuntu
Fedora
linux-image-virtual-lts-xenial (Ubuntu package)
linux-image-powerpc64-smp-lts-xenial (Ubuntu package)
linux-image-powerpc64-emb-lts-xenial (Ubuntu package)
linux-image-powerpc-smp-lts-xenial (Ubuntu package)
linux-image-powerpc-e500mc-lts-xenial (Ubuntu package)
linux-image-lowlatency-lts-xenial (Ubuntu package)
linux-image-generic-lts-xenial (Ubuntu package)
linux-image-generic-lpae-lts-xenial (Ubuntu package)
linux-image-powerpc64-smp (Ubuntu package)
linux-image-powerpc64-emb (Ubuntu package)
linux-image-powerpc-smp (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-powerpc-e500mc (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-generic-lpae (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-4.4.0-190-powerpc64-emb (Ubuntu package)
linux-image-4.4.0-190-powerpc64-smp (Ubuntu package)
linux-image-4.4.0-190-lowlatency (Ubuntu package)
linux-image-4.4.0-190-generic-lpae (Ubuntu package)
linux-image-4.4.0-190-powerpc-e500mc (Ubuntu package)
linux-image-4.4.0-190-powerpc-smp (Ubuntu package)
linux-image-4.4.0-190-generic (Ubuntu package)
linux-image-aws (Ubuntu package)
linux-image-4.4.0-1078-aws (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-4.4.0-1080-kvm (Ubuntu package)
linux-image-4.4.0-1114-aws (Ubuntu package)
linux-image-raspi2 (Ubuntu package)
linux-image-4.4.0-1139-raspi2 (Ubuntu package)
linux-image-snapdragon (Ubuntu package)
linux-image-4.4.0-1143-snapdragon (Ubuntu package)
linux-4.4.240/kernel-modules
linux-4.4.240/kernel-generic
linux-4.4.240/kernel-huge
linux-4.4.240/kernel-headers
linux-image-4.15.0-118-lowlatency (Ubuntu package)
linux-image-generic-hwe-16.04 (Ubuntu package)
linux-image-generic-lpae-hwe-16.04 (Ubuntu package)
linux-image-virtual-hwe-16.04 (Ubuntu package)
linux-image-4.15.0-118-generic-lpae (Ubuntu package)
linux-image-oem (Ubuntu package)
linux-image-4.15.0-118-generic (Ubuntu package)
linux-image-lowlatency-hwe-16.04 (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-4.15.0-1054-oracle (Ubuntu package)
linux-image-oracle-lts-18.04 (Ubuntu package)
linux-image-4.15.0-1070-gke (Ubuntu package)
linux-image-gke-4.15 (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-4.15.0-1071-raspi2 (Ubuntu package)
linux-image-4.15.0-1075-kvm (Ubuntu package)
linux-image-aws-hwe (Ubuntu package)
linux-image-aws-lts-18.04 (Ubuntu package)
linux-image-4.15.0-1083-aws (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-4.15.0-1084-gcp (Ubuntu package)
linux-image-gcp-lts-18.04 (Ubuntu package)
linux-image-4.15.0-1087-snapdragon (Ubuntu package)
linux-image-azure-lts-18.04 (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-azure-edge (Ubuntu package)
linux-image-4.15.0-1096-azure (Ubuntu package)
linux-image-4.15.0-1097-oem (Ubuntu package)
kernel (Red Hat package)
kernel-rt (Red Hat package)
perf
bpftool
kernel
kernel-debug
kernel-debug-devel
kernel-devel
kernel-headers
kernel-tools
kernel-tools-libs
kernel-tools-libs-devel
python-perf
python3-perf
kernel-modules-internal
kernel-modules-extra
kernel-modules
kernel-debug-modules-extra
kernel-debug-modules
kernel-debug-core
kernel-core

Install update from vendor's website.

Linux kernel - update to 5.3.12
linux-image-virtual-lts-xenial (Ubuntu package) - update to 4.4.0.190.166
linux-image-powerpc64-smp-lts-xenial (Ubuntu package) - update to 4.4.0.190.166
linux-image-powerpc64-emb-lts-xenial (Ubuntu package) - update to 4.4.0.190.166
linux-image-powerpc-smp-lts-xenial (Ubuntu package) - update to 4.4.0.190.166
linux-image-powerpc-e500mc-lts-xenial (Ubuntu package) - update to 4.4.0.190.166
linux-image-lowlatency-lts-xenial (Ubuntu package) - update to 4.4.0.190.166
linux-image-generic-lts-xenial (Ubuntu package) - update to 4.4.0.190.166
linux-image-generic-lpae-lts-xenial (Ubuntu package) - update to 4.4.0.190.166
linux-image-powerpc64-smp (Ubuntu package) - update to 4.4.0.190.196
linux-image-powerpc64-emb (Ubuntu package) - update to 4.4.0.190.196
linux-image-powerpc-smp (Ubuntu package) - update to 4.4.0.190.196
linux-image-virtual (Ubuntu package) - addressed in versions 4.4.0.190.196, 4.15.0.118.105
linux-image-powerpc-e500mc (Ubuntu package) - update to 4.4.0.190.196
linux-image-lowlatency (Ubuntu package) - addressed in versions 4.4.0.190.196, 4.15.0.118.105
linux-image-generic-lpae (Ubuntu package) - addressed in versions 4.4.0.190.196, 4.15.0.118.105
linux-image-generic (Ubuntu package) - addressed in versions 4.4.0.190.196, 4.15.0.118.105
linux-image-4.4.0-190-powerpc64-emb (Ubuntu package) - addressed in versions 4.4.0-190.220, 4.4.0-190.220~14.04.1
linux-image-4.4.0-190-powerpc64-smp (Ubuntu package) - addressed in versions 4.4.0-190.220, 4.4.0-190.220~14.04.1
linux-image-4.4.0-190-lowlatency (Ubuntu package) - addressed in versions 4.4.0-190.220, 4.4.0-190.220~14.04.1
linux-image-4.4.0-190-generic-lpae (Ubuntu package) - addressed in versions 4.4.0-190.220, 4.4.0-190.220~14.04.1
linux-image-4.4.0-190-powerpc-e500mc (Ubuntu package) - addressed in versions 4.4.0-190.220, 4.4.0-190.220~14.04.1
linux-image-4.4.0-190-powerpc-smp (Ubuntu package) - addressed in versions 4.4.0-190.220, 4.4.0-190.220~14.04.1
linux-image-4.4.0-190-generic (Ubuntu package) - addressed in versions 4.4.0-190.220, 4.4.0-190.220~14.04.1
linux-image-aws (Ubuntu package) - addressed in versions 4.4.0.1078.75, 4.4.0.1114.119
linux-image-4.4.0-1078-aws (Ubuntu package) - update to 4.4.0-1078.82
linux-image-kvm (Ubuntu package) - addressed in versions 4.4.0.1080.78, 4.15.0.1075.71
linux-image-4.4.0-1080-kvm (Ubuntu package) - update to 4.4.0-1080.87
linux-image-4.4.0-1114-aws (Ubuntu package) - update to 4.4.0-1114.127
linux-image-raspi2 (Ubuntu package) - addressed in versions 4.4.0.1139.139, 4.15.0.1071.68
linux-image-4.4.0-1139-raspi2 (Ubuntu package) - update to 4.4.0-1139.148
linux-image-snapdragon (Ubuntu package) - addressed in versions 4.4.0.1143.135, 4.15.0.1087.90
linux-image-4.4.0-1143-snapdragon (Ubuntu package) - update to 4.4.0-1143.152
linux-4.4.240/kernel-modules - update to 4.4.240
linux-4.4.240/kernel-generic - update to 4.4.240
linux-4.4.240/kernel-huge - update to 4.4.240
linux-4.4.240/kernel-headers - update to 4.4.240_smp
linux-image-4.15.0-118-lowlatency (Ubuntu package) - addressed in versions 4.15.0-118.119, 4.15.0-118.119~16.04.1
linux-image-generic-hwe-16.04 (Ubuntu package) - update to 4.15.0.118.119
linux-image-generic-lpae-hwe-16.04 (Ubuntu package) - update to 4.15.0.118.119
linux-image-virtual-hwe-16.04 (Ubuntu package) - update to 4.15.0.118.119
linux-image-4.15.0-118-generic-lpae (Ubuntu package) - addressed in versions 4.15.0-118.119, 4.15.0-118.119~16.04.1
linux-image-oem (Ubuntu package) - addressed in versions 4.15.0.118.119, 4.15.0.1097.101
linux-image-4.15.0-118-generic (Ubuntu package) - addressed in versions 4.15.0-118.119, 4.15.0-118.119~16.04.1
linux-image-lowlatency-hwe-16.04 (Ubuntu package) - update to 4.15.0.118.119
linux-image-oracle (Ubuntu package) - update to 4.15.0.1054.44
linux-image-4.15.0-1054-oracle (Ubuntu package) - addressed in versions 4.15.0-1054.58, 4.15.0-1054.58~16.04.1
linux-image-oracle-lts-18.04 (Ubuntu package) - update to 4.15.0.1054.64
linux-image-4.15.0-1070-gke (Ubuntu package) - update to 4.15.0-1070.73
linux-image-gke-4.15 (Ubuntu package) - update to 4.15.0.1070.74
linux-image-gke (Ubuntu package) - addressed in versions 4.15.0.1070.74, 4.15.0.1084.85
linux-image-4.15.0-1071-raspi2 (Ubuntu package) - update to 4.15.0-1071.75
linux-image-4.15.0-1075-kvm (Ubuntu package) - update to 4.15.0-1075.76
linux-image-aws-hwe (Ubuntu package) - update to 4.15.0.1083.79
linux-image-aws-lts-18.04 (Ubuntu package) - update to 4.15.0.1083.85
linux-image-4.15.0-1083-aws (Ubuntu package) - addressed in versions 4.15.0-1083.87, 4.15.0-1083.87~16.04.1
linux-image-gcp (Ubuntu package) - update to 4.15.0.1084.85
linux-image-4.15.0-1084-gcp (Ubuntu package) - addressed in versions 4.15.0-1084.95, 4.15.0-1084.95~16.04.1
linux-image-gcp-lts-18.04 (Ubuntu package) - update to 4.15.0.1084.102
linux-image-4.15.0-1087-snapdragon (Ubuntu package) - update to 4.15.0-1087.95
linux-image-azure-lts-18.04 (Ubuntu package) - update to 4.15.0.1096.69
linux-image-azure (Ubuntu package) - addressed in versions 4.15.0.1096.72, 4.15.0.1096.90
linux-image-azure-edge (Ubuntu package) - update to 4.15.0.1096.90
linux-image-4.15.0-1096-azure (Ubuntu package) - addressed in versions 4.15.0-1096.106, 4.15.0-1096.106~14.04.1, 4.15.0-1096.106~16.04.1
linux-image-4.15.0-1097-oem (Ubuntu package) - update to 4.15.0-1097.107
kernel (Red Hat package) - update to 4.18.0-193.el8
kernel-rt (Red Hat package) - update to 4.18.0-193.rt13.51.el8
perf - update to 4.19.91-26
bpftool - update to 4.19.91-26
kernel - update to 4.19.91-26
kernel-debug - update to 4.19.91-26
kernel-debug-devel - update to 4.19.91-26
kernel-devel - update to 4.19.91-26
kernel-headers - update to 4.19.91-26
kernel-tools - update to 4.19.91-26
kernel-tools-libs - update to 4.19.91-26
kernel-tools-libs-devel - update to 4.19.91-26
python-perf - update to 4.19.91-26
python3-perf - update to 4.19.91-26
kernel-modules-internal - update to 4.19.91-26
kernel-modules-extra - update to 4.19.91-26
kernel-modules - update to 4.19.91-26
kernel-debug-modules-extra - update to 4.19.91-26
kernel-debug-modules - update to 4.19.91-26
kernel-debug-core - update to 4.19.91-26
kernel-core - update to 4.19.91-26
kernel - addressed in versions 5.3.12-200.fc30, 5.3.12-300.fc31

• https://github.com/torvalds/linux/commit/728c1e2a05e4b5fc52fab3421dce772a806612a2
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O3PSDE6PTOTVBK2YTKB2TFQP2SUBVSNF/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PY7LJMSPAGRIKABJPDKQDTXYW3L5RX2T/

• Multiple vulnerabilities in Linux kernel
• Red Hat Enterprise Linux 8 update for kernel-rt
• Red Hat Enterprise Linux 8 update for kernel
• Anolis OS update for kernel(ANCK)4.19
• Anolis OS update for kernel
• Ubuntu update for linux
• Ubuntu update for linux
• Slackware Linux update for kernel
• Fedora 31 update for kernel
• Fedora 30 update for kernel