CVE-2018-16865

high

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.

References

https://www.qualys.com/2019/01/09/system-down/system-down.txt

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16865

https://usn.ubuntu.com/3855-1/

http://www.securityfocus.com/bid/106525

https://www.debian.org/security/2019/dsa-4367

https://access.redhat.com/errata/RHSA-2019:0049

https://security.netapp.com/advisory/ntap-20190117-0001/

https://lists.debian.org/debian-lts-announce/2019/01/msg00016.html

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://security.gentoo.org/glsa/201903-07

https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html

https://access.redhat.com/errata/RHBA-2019:0327

http://www.openwall.com/lists/oss-security/2019/05/10/4

https://seclists.org/bugtraq/2019/May/25

http://packetstormsecurity.com/files/152841/System-Down-A-systemd-journald-Exploit.html

http://seclists.org/fulldisclosure/2019/May/21

https://access.redhat.com/errata/RHSA-2019:2402

http://www.openwall.com/lists/oss-security/2021/07/20/2

https://access.redhat.com/security/cve/CVE-2018-16865

https://bugzilla.redhat.com/show_bug.cgi?id=1653861

Details

Source: MITRE

Published: 2019-01-11

Updated: 2023-02-02

Type: CWE-770

Risk Information

CVSS v2

Base Score: 4.6

Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH