CVE-2018-10021

NameCVE-2018-10021
Description** DISPUTED ** drivers/scsi/libsas/sas_scsi_host.c in the Linux kernel before 4.16 allows local users to cause a denial of service (ata qc leak) by triggering certain failure conditions. NOTE: a third party disputes the relevance of this report because the failure can only occur for physically proximate attackers who unplug SAS Host Bus Adapter cables.
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-1423-1, DLA-1529-1
NVD severitymedium (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie3.16.56-1+deb8u1vulnerable
jessie (security)3.16.59-1fixed
stretch4.9.110-1fixed
stretch (security)4.9.110-3+deb9u6fixed
buster, sid4.18.10-2fixed
linux-4.9 (PTS)jessie (security)4.9.110-3+deb9u5~deb8u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.15.17-1medium
linuxsourcejessie3.16.59-1mediumDLA-1529-1
linuxsourcestretch4.9.107-1medium
linuxsourcewheezy(not affected)
linux-4.9sourcejessie4.9.110-1~deb8u1mediumDLA-1423-1

Notes

[wheezy] - linux <not-affected> (Vulnerable code introduced later)
Fixed by: https://git.kernel.org/linus/318aaf34f1179b39fa9c30fa0f3288b645beee39 (4.16-rc7)
Low security impact, failure can only occur for physically
proximate attackers who unplug SAS Host Bus Adapter cables.

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