Out-of-Bounds The advisory has been revoked - it doesn't affect any version of package systemd (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1404-SYSTEMD-611624
- published19 Feb 2019
- disclosed21 Mar 2019
Introduced: 19 Feb 2019
CVE-2019-6454 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:14.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Ubuntu.
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).
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-6454
- https://kc.mcafee.com/corporate/index?page=content&id=SB10278
- https://www.debian.org/security/2019/dsa-4393
- https://lists.debian.org/debian-lts-announce/2019/02/msg00031.html
- https://security-tracker.debian.org/tracker/CVE-2019-6454
- 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://security.netapp.com/advisory/ntap-20190327-0004/
- http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00070.html
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00062.html
- http://www.openwall.com/lists/oss-security/2019/02/18/3
- http://www.openwall.com/lists/oss-security/2019/02/19/1
- https://access.redhat.com/errata/RHSA-2019:1502
- https://access.redhat.com/errata/RHSA-2019:2805
- https://access.redhat.com/errata/RHSA-2019:0368
- https://access.redhat.com/errata/RHSA-2019:0990
- https://access.redhat.com/errata/RHSA-2019:1322
- http://www.securityfocus.com/bid/107081
- https://usn.ubuntu.com/3891-1/
- http://www.openwall.com/lists/oss-security/2021/07/20/2
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N67IOBOTDOMVNQJ5QRU2MXLEECXPGNVJ/