Buffer overflow in Linux Kernel
CVE-2019-17133
In the Linux kernel through 5.3.2, cfg80211_mgd_wext_giwessid in net/wireless/wext-sme.c does not reject a long SSID IE, 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: 0.067 (93.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.067 · newest: 0.067 · change: +0.001
Affected products
- Linux Kernel
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Debian Linux — versions 8.0
- openSUSE Leap — versions 15.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.opensuse.org/opensuse-security-announce/2019-10/msg00064.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-11/msg00010.html (vendor-advisory, Mailing List, Third Party Advisory)
- seclists.org/bugtraq/2019/Nov/11 (mailing-list, Mailing List, Third Party Advisory)
- usn.ubuntu.com/4211-2/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4208-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4210-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4211-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4226-1/ (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/01/msg00013.html (mailing-list, Mailing List, Third Party Advisory)
- access.redhat.com/errata/RHSA-2020:0174 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-17133?
- CVE-2019-17133 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 2019-10-04.
- How severe is CVE-2019-17133?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-17133 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.