CVE-2018-16865

Public Exploit

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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 2.07% Top 20%
Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory gentoo.org Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: The systemd Project systemd
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2019:0342 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00016.html third party advisory mailing list
http://www.securityfocus.com/bid/106525 third party advisory vdb entry
https://www.debian.org/security/2019/dsa-4367 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2019:0204 third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16865 patch issue tracking
https://security.netapp.com/advisory/ntap-20190117-0001/ third party advisory
https://www.qualys.com/2019/01/09/system-down/system-down.txt third party advisory exploit
https://usn.ubuntu.com/3855-1/ third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2019:0049 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2019:0271 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2019:0361 third party advisory vendor advisory
https://security.gentoo.org/glsa/201903-07 third party advisory vendor advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html third party advisory patch
https://access.redhat.com/errata/RHBA-2019:0327 third party advisory vendor advisory
http://www.openwall.com/lists/oss-security/2019/05/10/4 third party advisory mailing list
https://seclists.org/bugtraq/2019/May/25 third party advisory mailing list
http://packetstormsecurity.com/files/152841/System-Down-A-systemd-journald-Exploit.html third party advisory vdb entry
http://seclists.org/fulldisclosure/2019/May/21 third party advisory mailing list
https://access.redhat.com/errata/RHSA-2019:2402 third party advisory vendor advisory
http://www.openwall.com/lists/oss-security/2021/07/20/2 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2018-16865?
CVE-2018-16865 has been scored as a high severity vulnerability.
How to fix CVE-2018-16865?
To fix CVE-2018-16865, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-16865 being actively exploited in the wild?
It is possible that CVE-2018-16865 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-16865?
CVE-2018-16865 affects The systemd Project systemd.
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