8.3
CWE
119 20
Advisory Published
CVE Published
Updated

CVE-2019-9503: Broadcom brcmfmac driver is vulnerable to a frame validation bypass

First published: Tue Feb 19 2019(Updated: )

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 not be processed. 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 and this can result in denial of service (DoS) condition.

Credit: cret@cert.org cret@cert.org

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:3.10.0-1127.rt56.1093.el7
0:3.10.0-1127.rt56.1093.el7
redhat/kernel<0:3.10.0-1127.el7
0:3.10.0-1127.el7
redhat/kernel<0:3.10.0-1062.26.1.el7
0:3.10.0-1062.26.1.el7
redhat/kernel-rt<0:4.18.0-80.11.1.rt9.156.el8_0
0:4.18.0-80.11.1.rt9.156.el8_0
redhat/kernel<0:4.18.0-80.11.1.el8_0
0:4.18.0-80.11.1.el8_0
Broadcom brcmfmac driver
Redhat Enterprise Linux=6.0
Redhat Enterprise Linux=7.0
IBM Data Risk Manager<=2.0.6
debian/linux
5.10.223-1
5.10.226-1
6.1.106-3
6.1.112-1
6.11.4-1
6.11.5-1

Remedy

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a4176ec356c73a46c07c181c6d04039fafa34a9f

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

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