What’s Vulnerable › Vulnerabilities

CVE-2018-16865

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-01-11 · updated 2026-06-17
• Weakness: CWE-770

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.

Affected products

• Canonical Ubuntu Linux: 16.04, 18.04, 18.10
• Debian Linux: 8.0, 9.0
• Oracle Corporation Communications Session Border Controller: 8.0.0, 8.1.0, 8.2.0
• Oracle Corporation Enterprise Communications Broker: 3.0.0, 3.1.0
• RedHat Enterprise Linux Desktop: 7.0
• RedHat Enterprise Linux Server: 7.0
• RedHat Enterprise Linux Server Aus: 7.3, 7.6
• RedHat Enterprise Linux Server Eus: 7.5, 7.6
• RedHat Enterprise Linux Server Tus: 7.3, 7.6
• RedHat Enterprise Linux Workstation: 7.0
• systemd: through 240

References

• http://packetstormsecurity.com/files/152841/System-Down-A-systemd-journald-Exploit.html
• http://seclists.org/fulldisclosure/2019/May/21
• http://www.openwall.com/lists/oss-security/2019/05/10/4
• http://www.openwall.com/lists/oss-security/2021/07/20/2
• http://www.securityfocus.com/bid/106525
• https://access.redhat.com/errata/RHBA-2019:0327
• https://access.redhat.com/errata/RHSA-2019:0049
• https://access.redhat.com/errata/RHSA-2019:0204
• https://access.redhat.com/errata/RHSA-2019:0271
• https://access.redhat.com/errata/RHSA-2019:0342
• https://access.redhat.com/errata/RHSA-2019:0361
• https://access.redhat.com/errata/RHSA-2019:2402

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