CVE-2019-16746Classic Buffer Overflow in Kernel

Severity
9.8CRITICALNVD
OSV6.7OSV6.5
EPSS
2.6%
top 14.36%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedSep 24
Latest updateMay 24

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 vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages6 packages

NVDlinux/linux_kernel2.6.253.16.79+5
Debianlinux/linux_kernel< 5.3.7-1+3
Ubuntulinux/linux_kernel< 4.4.0-168.197+2
debiandebian/linux< linux 5.3.7-1 (bookworm)
NVDopensuse/leap15.1

Also affects: Debian Linux 8.0, Ubuntu Linux 16.04, 18.04, 19.04, 19.10, Fedora 30

Patches

🔴Vulnerability Details

8
GHSA
GHSA-7rf2-mmqc-5w99: An issue was discovered in net/wireless/nl802112022-05-24
Kernel
fortify: Detect struct member overflows in memcpy() at compile-time2021-04-20
OSV
CVE-2019-16746: In multiple methods, there is a possible out of bounds read due to a missing bounds check during initial processing of a beacon packet2020-08-01
OSV
linux, linux-aws, linux-aws-hwe, linux-gcp, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities2019-12-03
OSV
linux, linux-aws, linux-aws-5.0, linux-gcp, linux-gke-5.0, linux-hwe, linux-kvm, linux-oem-osp1, linux-oracle, linux-oracle-5.0, linux-raspi2 vulnerabilities2019-12-02

📋Vendor Advisories

9
Android
CVE-2019-16746: Linux Wireless Subsystem2020-08-01
Ubuntu
Linux kernel vulnerabilities2019-12-03
Ubuntu
Linux kernel vulnerabilities2019-12-02
Ubuntu
Linux kernel vulnerabilities2019-11-13
Ubuntu
Linux kernel vulnerabilities2019-11-13

💬Community

2
Bugzilla
CVE-2019-16746 kernel: buffer-overflow in net/wireless/nl80211.c [fedora-all]2019-10-10
Bugzilla
CVE-2019-16746 kernel: buffer-overflow hardening in WiFi beacon validation code.2019-10-10