CVE-2021-3564

NameCVE-2021-3564
DescriptionA flaw double-free memory corruption in the Linux kernel HCI device initialization subsystem was found in the way user attach malicious HCI TTY Bluetooth device. A local user could use this flaw to crash the system. This flaw affects all the Linux kernel versions starting from 3.13.
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-2689-1, DLA-2690-1
NVD severitylow

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)stretch4.9.228-1vulnerable
stretch (security)4.9.272-1fixed
buster4.19.194-1fixed
buster (security)4.19.171-2vulnerable
bullseye, sid5.10.40-1vulnerable
linux-4.19 (PTS)stretch (security)4.19.194-1~deb9u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcestretch4.9.272-1DLA-2689-1
linuxsourcebuster4.19.194-1
linuxsource(unstable)(unfixed)
linux-4.19sourcestretch4.19.194-1~deb9u1DLA-2690-1

Notes

https://www.openwall.com/lists/oss-security/2021/05/25/1

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