CVE-2019-9503
Broadcom brcmfmac WiFi Driver Frame Validation Bypass Vulnerability
Description
The Broadcom brcmfmac WiFi driver prior to commit a4176ec356c73a46c07c181c6d04039fafa34a9f is vulnerable to a frame validation bypass. If the brcmfmac driver receives a firmware event frame from a remote source, the is_wlc_event_frame function will cause this frame to be discarded and unprocessed. If the driver receives the firmware event frame from the host, the appropriate handler is called. This frame validation can be bypassed if the bus used is USB (for instance by a wifi dongle). This can allow firmware event frames from a remote source to be processed. In the worst case scenario, by sending specially-crafted WiFi packets, a remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system. More typically, this vulnerability will result in denial-of-service conditions.
INFO
Published Date :
Jan. 16, 2020, 9:15 p.m.
Last Modified :
April 18, 2022, 6:09 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
6.0
Exploitability Score :
1.6
Public PoC/Exploit Available at Github
CVE-2019-9503 has a 9 public PoC/Exploit
available at Github.
Go to the Public Exploits
tab to see the list.
Affected Products
The following products are affected by CVE-2019-9503
vulnerability.
Even if cvefeed.io
is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-9503
.
URL | Resource |
---|---|
https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.html | Third Party Advisory |
https://bugzilla.redhat.com/show_bug.cgi?id=1701842 | Issue Tracking Third Party Advisory |
https://bugzilla.suse.com/show_bug.cgi?id=1132828 | Issue Tracking Third Party Advisory |
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a4176ec356c73a46c07c181c6d04039fafa34a9f | Patch Third Party Advisory |
https://kb.cert.org/vuls/id/166939/ | Third Party Advisory US Government Resource |
https://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-9503.html | Third Party Advisory |
https://security-tracker.debian.org/tracker/CVE-2019-9503 | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
None
Map Vulnerabilities into Different Layers of the Container Image
Python
None
None
None
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✍️ A curated list of CVE PoCs.
awesome cve poc
A collection of links related to Linux kernel security and exploitation
linux-kernel kernel-exploitation exploit privilege-escalation security
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-9503
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-9503
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Apr. 18, 2022
Action Type Old Value New Value Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1701842 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1701842 Issue Tracking, Third Party Advisory Changed Reference Type https://bugzilla.suse.com/show_bug.cgi?id=1132828 No Types Assigned https://bugzilla.suse.com/show_bug.cgi?id=1132828 Issue Tracking, Third Party Advisory Changed Reference Type https://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-9503.html No Types Assigned https://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-9503.html Third Party Advisory Changed Reference Type https://security-tracker.debian.org/tracker/CVE-2019-9503 No Types Assigned https://security-tracker.debian.org/tracker/CVE-2019-9503 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Feb. 18, 2022
Action Type Old Value New Value Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1701842 [No Types Assigned] Added Reference https://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-9503.html [No Types Assigned] Added Reference https://security-tracker.debian.org/tracker/CVE-2019-9503 [No Types Assigned] Added Reference https://bugzilla.suse.com/show_bug.cgi?id=1132828 [No Types Assigned] -
Initial Analysis by [email protected]
Jan. 29, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:A/AC:M/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H Changed Reference Type https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.html No Types Assigned https://blog.quarkslab.com/reverse-engineering-broadcom-wireless-chipsets.html Third Party Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a4176ec356c73a46c07c181c6d04039fafa34a9f No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a4176ec356c73a46c07c181c6d04039fafa34a9f Patch, Third Party Advisory Changed Reference Type https://kb.cert.org/vuls/id/166939/ No Types Assigned https://kb.cert.org/vuls/id/166939/ Third Party Advisory, US Government Resource Added CWE NIST CWE-20 Added CPE Configuration OR *cpe:2.3:a:broadcom:brcmfmac_driver:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-9503
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-9503
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.18 }} 0.02%
score
0.54889
percentile