Memory leak in Linux kernel - CVE-2019-18808

Vulnerability identifier: #VU24433

CSH Severity: Low

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

CVE-ID: CVE-2019-18808

CWE-ID: CWE-401

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the "ccp_run_sha_cmd()" function in drivers/crypto/ccp/ccp-ops.c in the Linux kernel through 5.3.9 allows a local user to cause a denial of service (memory consumption).

Linux kernel
Anolis OS
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for IBM System z (Structure A)
Red Hat Enterprise Linux for Power 9
Red Hat Enterprise Linux for ARM 64
Red Hat CodeReady Linux Builder for x86_64
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Ubuntu
Fedora
kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel-alt (Red Hat package)
linux-image-virtual (Ubuntu package)
linux-image-generic-lpae (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-4.15.0-118-generic-lpae (Ubuntu package)
linux-image-4.15.0-118-lowlatency (Ubuntu package)
linux-image-4.15.0-118-generic (Ubuntu package)
linux-image-generic-hwe-16.04 (Ubuntu package)
linux-image-generic-lpae-hwe-16.04 (Ubuntu package)
linux-image-lowlatency-hwe-16.04 (Ubuntu package)
linux-image-virtual-hwe-16.04 (Ubuntu package)
linux-image-oem (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 (Ubuntu package)
linux-image-gke-4.15 (Ubuntu package)
linux-image-raspi2 (Ubuntu package)
linux-image-4.15.0-1071-raspi2 (Ubuntu package)
linux-image-kvm (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-snapdragon (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-cross-headers
bpftool
kernel
kernel-core
kernel-doc
kernel-debug
kernel-debug-core
kernel-debug-devel
kernel-debug-modules
kernel-debug-modules-extra
kernel-devel
kernel-headers
kernel-modules
kernel-modules-extra
kernel-tools
kernel-tools-libs
perf
python3-perf
kernel-abi-stablelists
kernel-tools-libs-devel
kernel-modules-internal
python-perf
linux-image-oem-osp1 (Ubuntu package)
linux-image-5.4.0-48-generic (Ubuntu package)
linux-image-5.4.0-48-generic-lpae (Ubuntu package)
linux-image-5.4.0-48-lowlatency (Ubuntu package)
linux-image-lowlatency-hwe-18.04 (Ubuntu package)
linux-image-virtual-hwe-18.04 (Ubuntu package)
linux-image-snapdragon-hwe-18.04 (Ubuntu package)
linux-image-generic-lpae-hwe-18.04 (Ubuntu package)
linux-image-generic-hwe-18.04 (Ubuntu package)
linux-image-5.4.0-1019-raspi (Ubuntu package)
linux-image-raspi-hwe-18.04 (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-5.4.0-1024-kvm (Ubuntu package)
linux-image-aws (Ubuntu package)
linux-image-5.4.0-1025-aws (Ubuntu package)
linux-image-5.4.0-1025-gcp (Ubuntu package)
linux-image-5.4.0-1025-oracle (Ubuntu package)
linux-image-5.4.0-1026-azure (Ubuntu package)

Install update from vendor's website.

Linux kernel - update to 5.3.10
kernel (Red Hat package) - addressed in versions 3.10.0-1160.el7, 4.18.0-240.el8
kernel-rt (Red Hat package) - update to 3.10.0-1160.rt56.1131.el7
kernel-alt (Red Hat package) - update to 4.14.0-115.26.1.el7a
linux-image-virtual (Ubuntu package) - addressed in versions 4.15.0.118.105, 5.4.0.48.51
linux-image-generic-lpae (Ubuntu package) - addressed in versions 4.15.0.118.105, 5.4.0.48.51
linux-image-generic (Ubuntu package) - addressed in versions 4.15.0.118.105, 5.4.0.48.51
linux-image-lowlatency (Ubuntu package) - addressed in versions 4.15.0.118.105, 5.4.0.48.51
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-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-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-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-lowlatency-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-oem (Ubuntu package) - addressed in versions 4.15.0.118.119, 4.15.0.1097.101, 5.4.0.48.51
linux-image-oracle (Ubuntu package) - addressed in versions 4.15.0.1054.44, 5.4.0.1025.9, 5.4.0.1025.22
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 (Ubuntu package) - addressed in versions 4.15.0.1070.74, 4.15.0.1084.85, 5.4.0.1025.22
linux-image-gke-4.15 (Ubuntu package) - update to 4.15.0.1070.74
linux-image-raspi2 (Ubuntu package) - addressed in versions 4.15.0.1071.68, 5.4.0.1019.54
linux-image-4.15.0-1071-raspi2 (Ubuntu package) - update to 4.15.0-1071.75
linux-image-kvm (Ubuntu package) - addressed in versions 4.15.0.1075.71, 5.4.0.1024.22
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) - addressed in versions 4.15.0.1084.85, 5.4.0.1025.13, 5.4.0.1025.22
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-snapdragon (Ubuntu package) - update to 4.15.0.1087.90
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, 5.4.0.1026.9, 5.4.0.1026.25
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-cross-headers - update to 4.18.0-372.9.1
bpftool - addressed in versions 4.18.0-372.9.1, 4.19.91-23.4, 4.19.91-25.6, 4.19.91-26
kernel - addressed in versions 4.18.0-372.9.1, 4.19.91-23.4, 4.19.91-25.6, 4.19.91-26
kernel-core - addressed in versions 4.18.0-372.9.1, 4.19.91-23.4, 4.19.91-25.6
kernel-doc - update to 4.18.0-372.9.1
kernel-debug - addressed in versions 4.18.0-372.9.1, 4.19.91-23.4, 4.19.91-25.6, 4.19.91-26
kernel-debug-core - addressed in versions 4.18.0-372.9.1, 4.19.91-23.4, 4.19.91-25.6
kernel-debug-devel - addressed in versions 4.18.0-372.9.1, 4.19.91-23.4, 4.19.91-25.6, 4.19.91-26
kernel-debug-modules - addressed in versions 4.18.0-372.9.1, 4.19.91-23.4, 4.19.91-25.6
kernel-debug-modules-extra - addressed in versions 4.18.0-372.9.1, 4.19.91-23.4, 4.19.91-25.6
kernel-devel - addressed in versions 4.18.0-372.9.1, 4.19.91-23.4, 4.19.91-25.6, 4.19.91-26
kernel-headers - addressed in versions 4.18.0-372.9.1, 4.19.91-23.4, 4.19.91-25.6, 4.19.91-26
kernel-modules - addressed in versions 4.18.0-372.9.1, 4.19.91-23.4, 4.19.91-25.6
kernel-modules-extra - addressed in versions 4.18.0-372.9.1, 4.19.91-23.4, 4.19.91-25.6
kernel-tools - addressed in versions 4.18.0-372.9.1, 4.19.91-23.4, 4.19.91-25.6, 4.19.91-26
kernel-tools-libs - addressed in versions 4.18.0-372.9.1, 4.19.91-23.4, 4.19.91-25.6, 4.19.91-26
perf - addressed in versions 4.18.0-372.9.1, 4.19.91-23.4, 4.19.91-25.6, 4.19.91-26
python3-perf - addressed in versions 4.18.0-372.9.1, 4.19.91-23.4, 4.19.91-25.6
kernel-abi-stablelists - update to 4.18.0-372.9.1
kernel-tools-libs-devel - addressed in versions 4.19.91-23.4, 4.19.91-25.6, 4.19.91-26
kernel-modules-internal - update to 4.19.91-25.6
python-perf - update to 4.19.91-26
kernel - addressed in versions 5.3.14-200.fc30, 5.3.14-300.fc31
linux-image-oem-osp1 (Ubuntu package) - update to 5.4.0.48.51
linux-image-5.4.0-48-generic (Ubuntu package) - update to 5.4.0-48.52~18.04.1
linux-image-5.4.0-48-generic-lpae (Ubuntu package) - update to 5.4.0-48.52~18.04.1
linux-image-5.4.0-48-lowlatency (Ubuntu package) - update to 5.4.0-48.52~18.04.1
linux-image-lowlatency-hwe-18.04 (Ubuntu package) - update to 5.4.0.48.52~18.04.42
linux-image-virtual-hwe-18.04 (Ubuntu package) - update to 5.4.0.48.52~18.04.42
linux-image-snapdragon-hwe-18.04 (Ubuntu package) - update to 5.4.0.48.52~18.04.42
linux-image-generic-lpae-hwe-18.04 (Ubuntu package) - update to 5.4.0.48.52~18.04.42
linux-image-generic-hwe-18.04 (Ubuntu package) - update to 5.4.0.48.52~18.04.42
linux-image-5.4.0-1019-raspi (Ubuntu package) - update to 5.4.0-1019.21~18.04.1
linux-image-raspi-hwe-18.04 (Ubuntu package) - update to 5.4.0.1019.23
linux-image-raspi (Ubuntu package) - update to 5.4.0.1019.54
linux-image-5.4.0-1024-kvm (Ubuntu package) - update to 5.4.0-1024.24
linux-image-aws (Ubuntu package) - addressed in versions 5.4.0.1025.10, 5.4.0.1025.26
linux-image-5.4.0-1025-aws (Ubuntu package) - update to 5.4.0-1025.25~18.04.1
linux-image-5.4.0-1025-gcp (Ubuntu package) - update to 5.4.0-1025.25~18.04.1
linux-image-5.4.0-1025-oracle (Ubuntu package) - update to 5.4.0-1025.25~18.04.1
linux-image-5.4.0-1026-azure (Ubuntu package) - update to 5.4.0-1026.26~18.04.1

• https://github.com/torvalds/linux/commit/128c66429247add5128c03dc1e144ca56f05a4e2
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LYIFGYEDQXP5DVJQQUARQRK2PXKBKQGY/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YWWOOJKZ4NQYN4RMFIVJ3ZIXKJJI3MKP/
• https://security.netapp.com/advisory/ntap-20191205-0001/

• Multiple vulnerabilities in Linux kernel
• Anolis OS update for kernel(ANCK)4.19
• Anolis OS update for kernel
• Anolis OS update for kernel(ANCK)4.19
• Ubuntu update for linux
• Ubuntu update for linux
• Red Hat Enterprise Linux 8 update for kernel
• Red Hat Enterprise Linux 7 update for kernel-alt
• Red Hat Enterprise Linux 7 update for kernel-rt
• Red Hat Enterprise Linux 7 update for kernel
• Fedora 31 update for kernel
• Fedora 30 update for kernel
• Anolis OS update for kernel