Test ID:	1.3.6.1.4.1.25623.1.0.891762
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DLA-1762-1)
Summary:	The remote host is missing an update for the Debian 'systemd' package(s) announced via the DLA-1762-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'systemd' package(s) announced via the DLA-1762-1 advisory. Vulnerability Insight: Two vulnerabilities have been addressed in the systemd components systemd-tmpfiles and pam_systemd.so. CVE-2017-18078 systemd-tmpfiles in systemd attempted to support ownership/permission changes on hardlinked files even if the fs.protected_hardlinks sysctl is turned off, which allowed local users to bypass intended access restrictions via vectors involving a hard link to a file for which the user lacked write access. CVE-2019-3842 It was discovered that pam_systemd did not properly sanitize the environment before using the XDG_SEAT variable. It was possible for an attacker, in some particular configurations, to set a XDG_SEAT environment variable which allowed for commands to be checked against polkit policies using the allow_active element rather than allow_any. For Debian 8 Jessie, these problems have been fixed in version 215-17+deb8u12. We recommend that you upgrade your systemd packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references] Affected Software/OS: 'systemd' package(s) on Debian 8. Solution: Please install the updated package(s). CVSS Score: 4.6 CVSS Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2017-18078 https://www.exploit-db.com/exploits/43935/ http://packetstormsecurity.com/files/146184/systemd-Local-Privilege-Escalation.html https://github.com/systemd/systemd/issues/7736 https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E https://lists.debian.org/debian-lts-announce/2019/04/msg00022.html http://www.openwall.com/lists/oss-security/2018/01/29/3 https://www.openwall.com/lists/oss-security/2018/01/29/4 SuSE Security Announcement: openSUSE-SU-2018:0560 (Google Search) http://lists.opensuse.org/opensuse-updates/2018-02/msg00109.html Common Vulnerability Exposure (CVE) ID: CVE-2019-3842 https://www.exploit-db.com/exploits/46743/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/STR36RJE4ZZIORMDXRERVBHMPRNRTHAC/ http://packetstormsecurity.com/files/152610/systemd-Seat-Verification-Active-Session-Spoofing.html SuSE Security Announcement: openSUSE-SU-2019:1450 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00062.html
Copyright	Copyright (C) 2019 Greenbone AG

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