High severity · published Jan 11, 2019
CVE-2018-16865
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…
7.8
CVSS
3%
EPSS
No
On KEV
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
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.0% · higher than 87% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SY
systemd · The systemd Project
through v240 · source: vendor, NVD
CS
Communications Session Border Controller · Oracle
8.0.0; 8.1.0; 8.2.0 · source: NVD
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
EC
Enterprise Communications Broker · Oracle
3.0.0; 3.1.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.3; 7.6 · source: NVD
EL
Enterprise Linux Server Eus · Redhat
7.5; 7.6 · source: NVD
EL
Enterprise Linux Server Tus · Redhat
7.3; 7.6 · source: NVD
EL
Enterprise Linux Workstation · Redhat
7.0 · source: NVD
UL
Ubuntu Linux · Canonical
16.04; 18.04; 18.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-16865
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-16865
Third Party Advisory
http://packetstormsecurity.com/files/152841/System-Down-A-systemd-journald-Exploit.html
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
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