CVE Kennung:	CVE-2019-6454
Beschreibung:	An issue was discovered in sd-bus in systemd 239. bus_process_object() in libsystemd/sd-bus/bus-objects.c allocates a variable-length stack buffer for temporarily storing the object path of incoming D-Bus messages. An unprivileged local user can exploit this by sending a specially crafted message to PID1, causing the stack pointer to jump over the stack guard pages into an unmapped memory region and trigger a denial of service (systemd PID1 crash and kernel panic).
Test Kennungen:	1.3.6.1.4.1.25623.1.0.891684   1.3.6.1.4.1.25623.1.0.852325   1.3.6.1.4.1.25623.1.0.883009   1.3.6.1.4.1.25623.1.0.704393   1.3.6.1.4.1.25623.1.0.852324   1.3.6.1.4.1.25623.1.0.875502   1.3.6.1.4.1.25623.1.0.843910   1.3.6.1.4.1.25623.1.0.876042   1.3.6.1.4.1.25623.1.0.876816   1.3.6.1.4.1.25623.1.1.2.2019.1107   1.3.6.1.4.1.25623.1.1.2.2019.1196   1.3.6.1.4.1.25623.1.1.2.2019.1153   1.3.6.1.4.1.25623.1.1.2.2019.1256   1.3.6.1.4.1.25623.1.1.4.2019.0424.1   1.3.6.1.4.1.25623.1.1.4.2019.0425.1   1.3.6.1.4.1.25623.1.1.4.2019.0428.1   1.3.6.1.4.1.25623.1.1.4.2019.0426.1
Querverweise:	Common Vulnerability Exposure (CVE) ID: CVE-2019-6454 BugTraq ID: 107081 http://www.securityfocus.com/bid/107081 Debian Security Information: DSA-4393-1 (Google Search) https://www.debian.org/security/2019/dsa-4393 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N67IOBOTDOMVNQJ5QRU2MXLEECXPGNVJ/ https://github.com/systemd/systemd/commits/master/src/libsystemd/sd-bus/bus-objects.c https://lists.debian.org/debian-lts-announce/2019/02/msg00031.html http://www.openwall.com/lists/oss-security/2019/02/18/3 http://www.openwall.com/lists/oss-security/2019/02/19/1 http://www.openwall.com/lists/oss-security/2021/07/20/2 RedHat Security Advisories: RHSA-2019:0368 https://access.redhat.com/errata/RHSA-2019:0368 RedHat Security Advisories: RHSA-2019:0990 https://access.redhat.com/errata/RHSA-2019:0990 RedHat Security Advisories: RHSA-2019:1322 https://access.redhat.com/errata/RHSA-2019:1322 RedHat Security Advisories: RHSA-2019:1502 https://access.redhat.com/errata/RHSA-2019:1502 RedHat Security Advisories: RHSA-2019:2805 https://access.redhat.com/errata/RHSA-2019:2805 SuSE Security Announcement: SUSE-SA:2019:0255-1 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00070.html SuSE Security Announcement: openSUSE-SU-2019:1450 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00062.html https://usn.ubuntu.com/3891-1/