CVE-2020-15437

NameCVE-2020-15437
DescriptionThe Linux kernel before version 5.8 is vulnerable to a NULL pointer dereference in drivers/tty/serial/8250/8250_core.c:serial8250_isa_init_ports() that allows local users to cause a denial of service by using the p->serial_in pointer which uninitialized.
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)
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)stretch4.9.228-1vulnerable
stretch (security)4.9.246-2fixed
buster4.19.160-2fixed
buster (security)4.19.152-1fixed
bullseye5.10.4-1fixed
sid5.10.5-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcestretch4.9.240-1
linuxsourcebuster4.19.146-1
linuxsource(unstable)5.7.17-1

Notes

https://git.kernel.org/linus/f4c23a140d80ef5e6d3d1f8f57007649014b60fa

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