CVE-2018-16865 Information

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.

CVSS Vector

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

Reference

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.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 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16865 https://lists.debian.org/debian-lts-announce/2019/01/msg00016.html https://seclists.org/bugtraq/2019/May/25 https://security.gentoo.org/glsa/201903-07 https://security.netapp.com/advisory/ntap-20190117-0001/ https://usn.ubuntu.com/3855-1/ https://www.debian.org/security/2019/dsa-4367 https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html https://www.qualys.com/2019/01/09/system-down/system-down.txt

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8