Buffer overflow in Linux Kernel
CVE-2019-16746
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.127 (96.1th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.127 · newest: 0.127 · change: 0.000
Affected products
- Linux Kernel
- Canonical Ubuntu Linux — versions 16.04, 18.04, 19.04
- Debian Linux — versions 8.0
- Fedoraproject Fedora — versions 30
- openSUSE Leap — versions 15.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- seclists.org/bugtraq/2019/Nov/11 (mailing-list, Mailing List, Third Party Advisory)
- usn.ubuntu.com/4183-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4186-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4209-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4210-1/ (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/01/msg00013.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/03/msg00001.html (mailing-list, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-16746?
- CVE-2019-16746 is a critical-severity vulnerability in Linux Kernel, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2019-09-24.
- How severe is CVE-2019-16746?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-16746 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.