CVE-2019-10220
Vulnerability Summary
Timeline
Description
Linux kernel CIFS implementation, version 4.9.0 is vulnerable to a relative paths injection in directory entry lists.
CVSS Metrics
- v3.1•HIGH•Score: 8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- v3.0•HIGH•Score: 8CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- v2.0•HIGH•Score: 9.3AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS Trends
Current EPSS score: 5.12%• Percentile: 92%
Techniques & Countermeasures
- CWE-22•Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
Affected Systems
- canonical•ubuntu_linux
18.04 | 19.04
- debian•linux
< 5.3.9-1 | < 5.3.9-1 | < 5.3.9-1 | < 5.3.9-1
- ubuntu•linux
all | < 4.4.0-173.203 | < 4.15.0-88.88
- ubuntu•linux-aws
< 4.4.0-1061.65 | < 4.4.0-1101.112 | < 4.15.0-1060.62
- ubuntu•linux-aws-5.0
< 5.0.0-1023.26~18.04.1
- ubuntu•linux-aws-fips
< 4.15.0-2018.18 | all
- ubuntu•linux-aws-hwe
< 4.15.0-1060.62~16.04.1
- ubuntu•linux-azure
< 4.15.0-1071.76~14.04.1 | < 4.15.0-1071.76 | < 5.0.0-1028.30~18.04.1
- ubuntu•linux-azure-5.3
< 5.3.0-1008.9~18.04.1
- ubuntu•linux-azure-edge
all
- ubuntu•linux-azure-fde
all
- ubuntu•linux-azure-fips
< 4.15.0-2006.7 | all
- ubuntu•linux-bluefield
all
- ubuntu•linux-fips
< 4.4.0-1028.33 | all
- ubuntu•linux-gcp
< 4.15.0-1055.59 | < 5.0.0-1028.29~18.04.1
- ubuntu•linux-gcp-5.3
< 5.3.0-1009.10~18.04.1
- ubuntu•linux-gcp-edge
all
- ubuntu•linux-gcp-fips
all
- ubuntu•linux-gke
all
- ubuntu•linux-gke-4.15
< 4.15.0-1052.55
- ubuntu•linux-gke-5.0
< 5.0.0-1027.28~18.04.1
- ubuntu•linux-hwe
< 4.15.0-88.88~16.04.1 | < 5.3.0-26.28~18.04.1
- ubuntu•linux-hwe-edge
all | < 5.3.0-24.26~18.04.2
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-kvm
< 4.4.0-1065.72 | < 4.15.0-1053.53
- ubuntu•linux-lts-xenial
< 4.4.0-173.203~14.04.1
- ubuntu•linux-oem
< 4.15.0-1073.83
- ubuntu•linux-oem-osp1
< 5.0.0-1033.38
- ubuntu•linux-oracle
< 4.15.0-1033.36~16.04.1 | < 4.15.0-1033.36
- ubuntu•linux-oracle-5.0
< 5.0.0-1009.14~18.04.1
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
< 4.4.0-1128.137 | < 4.15.0-1055.59 | all
- ubuntu•linux-realtime
all
- ubuntu•linux-riscv
all
- ubuntu•linux-snapdragon
< 4.4.0-1132.140 | < 4.15.0-1072.79
- debian•debian_linux
8.0
- linux•linux_kernel
≥ 2.6.12, < 3.16.81 | ≥ 3.17, < 4.4.208 | ≥ 4.5, < 4.9.208 | ≥ 4.10, < 4.14.162 | ≥ 4.15, < 4.19.93 | ≥ 4.20, < 5.3.8
- suse•kernel:
kernel version 4.9.0
References (9)
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10220
- https://security.netapp.com/advisory/ntap-20200103-0001/
- https://usn.ubuntu.com/4226-1/
- https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
- https://ubuntu.com/security/CVE-2019-10220
- https://ubuntu.com/security/notices/USN-4226-1
- https://www.cve.org/CVERecord?id=CVE-2019-10220
- https://security-tracker.debian.org/tracker/CVE-2019-10220