CVE-2019-16746
Vulnerability Summary
Timeline
Description
An issue was discovered in net/wireless/nl80211.c in the Linux kernel through 5.2.17. It does not check the length of variable elements in a beacon head, leading to a buffer overflow.
CVSS Metrics
- v4.0•MEDIUM•Score: 6.8CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
- v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- v2.0•HIGH•Score: 7.5AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS Trends
Current EPSS score: 12.65%• Percentile: 96%
Techniques & Countermeasures
- CWE-120•Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
Affected Systems
- canonical•ubuntu_linux
16.04 | 18.04 | 19.04 | 19.10
- debian•linux
< 5.3.7-1 | < 5.3.7-1 | < 5.3.7-1 | < 5.3.7-1
- ubuntu•linux
all | < 4.4.0-168.197 | < 4.15.0-72.81
- ubuntu•linux-aws
< 4.4.0-1058.62 | < 4.4.0-1098.109 | < 4.15.0-1056.58
- ubuntu•linux-aws-5.0
< 5.0.0-1022.25~18.04.1
- ubuntu•linux-aws-fips
< 4.15.0-2018.18 | all
- ubuntu•linux-aws-hwe
< 4.15.0-1056.58~16.04.1
- ubuntu•linux-azure
< 4.15.0-1064.69~14.04.1 | < 4.15.0-1064.69 | < 5.0.0-1027.29~18.04.1
- 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
< 4.4.0-1025.30 | all
- ubuntu•linux-gcp
< 4.15.0-1050.53 | < 5.0.0-1026.27~18.04.1
- ubuntu•linux-gcp-edge
all
- ubuntu•linux-gcp-fips
all
- ubuntu•linux-gke
all
- ubuntu•linux-gke-4.15
< 4.15.0-1049.52
- ubuntu•linux-gke-5.0
< 5.0.0-1026.27~18.04.2
- ubuntu•linux-hwe
< 4.15.0-72.81~16.04.1 | < 5.0.0-37.40~18.04.1
- ubuntu•linux-hwe-edge
all | all
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-kvm
< 4.4.0-1062.69 | < 4.15.0-1051.51
- ubuntu•linux-lts-xenial
< 4.4.0-168.197~14.04.1
- ubuntu•linux-oem
< 4.15.0-1065.75
- ubuntu•linux-oem-osp1
< 5.0.0-1030.34
- ubuntu•linux-oracle
< 4.15.0-1030.33~16.04.1 | < 4.15.0-1030.33
- ubuntu•linux-oracle-5.0
< 5.0.0-1008.13~18.04.1
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
< 4.4.0-1125.134 | < 4.15.0-1052.56 | all
- ubuntu•linux-realtime
all
- ubuntu•linux-riscv
all | all
- ubuntu•linux-snapdragon
< 4.4.0-1129.137 | < 4.15.0-1069.76
- debian•debian_linux
8.0
- fedoraproject•fedora
30
- linux•linux_kernel
≥ 2.6.25, < 3.16.79 | ≥ 3.17, < 4.4.197 | ≥ 4.5, < 4.9.197 | ≥ 4.10, < 4.14.149 | ≥ 4.15, < 4.19.79 | ≥ 4.20, < 5.3.6
- opensuse•leap
15.1
References (21)
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TASE2ESEZAER6DTZH3DJ4K2JNO46TVL7/
- https://seclists.org/bugtraq/2019/Nov/11
- https://usn.ubuntu.com/4183-1/
- https://usn.ubuntu.com/4186-1/
- https://usn.ubuntu.com/4209-1/
- https://usn.ubuntu.com/4210-1/
- https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html
- https://www.oracle.com/security-alerts/cpuApr2021.html
- http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- https://marc.info/?l=linux-wireless&m=156901391225058&w=2
- https://security.netapp.com/advisory/ntap-20191031-0005/
- https://ubuntu.com/security/CVE-2019-16746
- https://ubuntu.com/security/notices/USN-4183-1
- https://ubuntu.com/security/notices/USN-4186-1
- https://ubuntu.com/security/notices/USN-4209-1
- https://ubuntu.com/security/notices/USN-4210-1
- https://www.cve.org/CVERecord?id=CVE-2019-16746
- https://security-tracker.debian.org/tracker/CVE-2019-16746