CVE-2019-9500

NameCVE-2019-9500
DescriptionThe Broadcom brcmfmac WiFi driver prior to commit 1b5e2423164b3670e8bc9174e4762d297990deff is vulnerable to a heap buffer overflow. If the Wake-up on Wireless LAN functionality is configured, a malicious event frame can be constructed to trigger an heap buffer overflow in the brcmf_wowl_nd_results function. This vulnerability can be exploited with compromised chipsets to compromise the host, or when used in combination with CVE-2019-9503, can be used remotely. 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-1824-1, DSA-4465-1
NVD severityhigh

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie3.16.56-1+deb8u1fixed
jessie (security)3.16.81-1fixed
stretch4.9.210-1fixed
stretch (security)4.9.189-3+deb9u2fixed
buster4.19.118-2fixed
buster (security)4.19.98-1+deb10u1fixed
bullseye, sid5.6.14-1fixed
linux-4.9 (PTS)jessie (security)4.9.210-1~deb8u1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.19.37-4
linuxsourcejessie(not affected)
linuxsourcestretch4.9.168-1+deb9u3DSA-4465-1
linux-4.9sourcejessie4.9.168-1+deb9u3~deb8u1DLA-1824-1

Notes

[jessie] - linux <not-affected> (Vulnerable code introduced later)
https://git.kernel.org/linus/1b5e2423164b3670e8bc9174e4762d297990deff (5.1-rc1)

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