CVE-2020-11494

NameCVE-2020-11494
DescriptionAn issue was discovered in slc_bump in drivers/net/can/slcan.c in the Linux kernel through 5.6.2. It allows attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL, aka CID-b9258a2cece4.
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-2241-1, DLA-2242-1, DSA-4698-1
NVD severitylow

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)stretch4.9.228-1fixed
stretch (security)4.9.210-1+deb9u1fixed
buster4.19.132-1fixed
buster (security)4.19.118-2+deb10u1fixed
bullseye, sid5.8.7-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcejessie3.16.84-1DLA-2241-1
linuxsourcestretch4.9.210-1+deb9u1DSA-4698-1
linuxsourcebuster4.19.118-1
linuxsource(unstable)5.5.17-1
linux-4.9sourcejessie4.9.210-1+deb9u1~deb8u1DLA-2242-1

Notes

https://lore.kernel.org/netdev/20200401100639.20199-1-rpalethorpe@suse.com/

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