CVE-2018-16865

moderate-risk
Published 2019-01-11

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.

Do I need to act?

~
1.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (20)

Affected Vendors

Debian Redhat Oracle Canonical Systemd Project

References (42)

Third Party Advisory http://packetstormsecurity.com/files/152841/System-Down-A-systemd-journald-Explo...
Mailing List http://seclists.org/fulldisclosure/2019/May/21
Mailing List http://www.openwall.com/lists/oss-security/2019/05/10/4
Mailing List http://www.openwall.com/lists/oss-security/2021/07/20/2
Third Party Advisory http://www.securityfocus.com/bid/106525
Third Party Advisory https://access.redhat.com/errata/RHBA-2019:0327
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0049
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0204
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0271
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0342
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0361
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:2402
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16865
Mailing List https://lists.debian.org/debian-lts-announce/2019/01/msg00016.html
Mailing List https://seclists.org/bugtraq/2019/May/25
Third Party Advisory https://security.gentoo.org/glsa/201903-07
Third Party Advisory https://security.netapp.com/advisory/ntap-20190117-0001/
Third Party Advisory https://usn.ubuntu.com/3855-1/
Third Party Advisory https://www.debian.org/security/2019/dsa-4367
Patch https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
and 22 more references
48
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 4/34 · Minimal
Exposure 20/34 · Moderate