CVE-2019-3811

NameCVE-2019-3811
DescriptionA vulnerability was found in sssd. If a user was configured with no home directory set, sssd would return '/' (the root directory) instead of '' (the empty string / no home directory). This could impact services that restrict the user's filesystem access to within their home directory through chroot() etc. All versions before 2.1 are vulnerable.
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-1635-1
NVD severitylow (attack range: remote)
Debian Bugs919051

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
sssd (PTS)jessie1.11.7-3vulnerable
jessie (security)1.11.7-3+deb8u2fixed
stretch1.15.0-3vulnerable
buster, sid1.16.3-3vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
sssdsource(unstable)(unfixed)low919051
sssdsourcejessie1.11.7-3+deb8u2lowDLA-1635-1

Notes

Upstream ticket: https://pagure.io/SSSD/sssd/issue/3901
Pull request: https://github.com/SSSD/sssd/pull/703
Fixed by: https://github.com/SSSD/sssd/commit/90f32399b4100ce39cf665649fde82d215e5eb49 (master)
Fixed by: https://github.com/SSSD/sssd/commit/28792523a01a7d21bcc8931794164f253e691a68 (sssd-1-16)

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