CVE-2019-18808
Vulnerability Summary
Timeline
Description
A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c in the Linux kernel through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-128c66429247.
CVSS Metrics
- v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- v2.0•LOW•Score: 2.1AV:L/AC:L/Au:N/C:N/I:N/A:P
EPSS Trends
Current EPSS score: 0.33%• Percentile: 26%
Techniques & Countermeasures
- CWE-401•Missing Release of Memory after Effective Lifetime
The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
Affected Systems
- canonical•ubuntu_linux
14.04 | 16.04 | 18.04 | 20.04
- debian•linux
< 5.5.13-1 | < 5.5.13-1 | < 5.5.13-1 | < 5.5.13-1
- ubuntu•linux
< 4.15.0-118.119 | < 5.4.0-48.52
- ubuntu•linux-aws
< 4.15.0-1083.87 | < 5.4.0-1025.25
- ubuntu•linux-aws-5.0
all
- ubuntu•linux-aws-5.3
all
- ubuntu•linux-aws-5.4
< 5.4.0-1025.25~18.04.1
- ubuntu•linux-aws-fips
< 4.15.0-2027.27 | all | < 5.4.0-1069.73+fips2
- ubuntu•linux-aws-hwe
< 4.15.0-1083.87~16.04.1
- ubuntu•linux-azure
< 4.15.0-1096.106~14.04.1 | < 4.15.0-1096.106~16.04.1 | all | < 5.4.0-1026.26
- ubuntu•linux-azure-4.15
< 4.15.0-1096.106
- ubuntu•linux-azure-5.3
all
- ubuntu•linux-azure-5.4
< 5.4.0-1026.26~18.04.1
- ubuntu•linux-azure-edge
all
- ubuntu•linux-azure-fde
all
- ubuntu•linux-azure-fips
< 4.15.0-2009.10 | all | < 5.4.0-1073.76+fips1
- ubuntu•linux-bluefield
all
- ubuntu•linux-fips
< 4.15.0-1041.46 | all
- ubuntu•linux-gcp
< 4.15.0-1084.95~16.04.1 | all | < 5.4.0-1025.25
- ubuntu•linux-gcp-4.15
< 4.15.0-1084.95
- ubuntu•linux-gcp-5.3
all
- ubuntu•linux-gcp-5.4
< 5.4.0-1025.25~18.04.1
- ubuntu•linux-gcp-edge
all
- ubuntu•linux-gcp-fips
all | < 5.4.0-1067.71~20.04.1
- ubuntu•linux-gke-4.15
< 4.15.0-1070.73
- ubuntu•linux-hwe
< 4.15.0-118.119~16.04.1 | all
- ubuntu•linux-hwe-5.4
< 5.4.0-48.52~18.04.1
- ubuntu•linux-hwe-edge
all | all
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-kvm
< 4.15.0-1075.76 | < 5.4.0-1024.24
- ubuntu•linux-oem
< 4.15.0-1097.107
- ubuntu•linux-oracle
< 4.15.0-1054.58~16.04.1 | < 4.15.0-1054.58 | < 5.4.0-1025.25
- ubuntu•linux-oracle-5.0
all
- ubuntu•linux-oracle-5.3
all
- ubuntu•linux-oracle-5.4
< 5.4.0-1025.25~18.04.1
- ubuntu•linux-raspi
< 5.4.0-1019.21
- ubuntu•linux-raspi-5.4
< 5.4.0-1019.21~18.04.1
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
< 4.15.0-1071.75 | all
- ubuntu•linux-realtime
all
- ubuntu•linux-riscv
< 5.4.0-34.38 | all
- ubuntu•linux-snapdragon
< 4.15.0-1087.95
- fedoraproject•fedora
30 | 31
- linux•linux_kernel
≤ 5.3.9
- opensuse•leap
15.1
References (13)
- https://github.com/torvalds/linux/commit/128c66429247add5128c03dc1e144ca56f05a4e2
- https://security.netapp.com/advisory/ntap-20191205-0001/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYIFGYEDQXP5DVJQQUARQRK2PXKBKQGY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YWWOOJKZ4NQYN4RMFIVJ3ZIXKJJI3MKP/
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
- https://usn.ubuntu.com/4526-1/
- https://usn.ubuntu.com/4525-1/
- http://www.openwall.com/lists/oss-security/2021/09/14/1
- https://ubuntu.com/security/CVE-2019-18808
- https://ubuntu.com/security/notices/USN-4525-1
- https://ubuntu.com/security/notices/USN-4526-1
- https://www.cve.org/CVERecord?id=CVE-2019-18808
- https://security-tracker.debian.org/tracker/CVE-2019-18808