CVE-2018-16865

systemd: stack overflow when receiving many journald entries

Published Jan 11, 2019 CVSS 3.1 · 7.8 High EPSS 3.0% KEV · Not listed
Description
An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when many entries are sent to the journal socket. A local attacker, or a remote one if systemd-journal-remote is used, may use this flaw to crash systemd-journald or execute code with journald privileges. Versions through v240 are vulnerable.

Analysis

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Remediation

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Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-1639-1 systemd security update
Debian DSA Debian DSA DSA-4367-1 systemd security update
EUVD EUVD EUVD-2018-8656 An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when many entries are sent to the journal socket. A local attacker, or a remote one if systemd-journal-remote is used, may use this flaw to crash systemd-journald or execute code with journald privileges. Versions through v240 are vulnerable.
Ubuntu USN Ubuntu USN USN-3855-1 systemd vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}