7.8

CVE-2018-16865: canonical ubuntu_linux

Modified
AliasesUBUNTU-CVE-2018-16865DEBIAN-CVE-2018-16865CGA-3hhx-87fc-gmcx
Published 11-01-2019Last modified 09-06-2025

Vulnerability summary

CVE-2018-16865 is a high (CVSS 7.8) vulnerability in canonical ubuntu_linux. EPSS estimates a 3.02% chance of exploitation in the next 30 days, higher than 87.4% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritisepublic exploit

Public exploit (reference, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
3.02%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 16 · Related 9
DLA-1639-1DSA-4367-1OPENSUSE-SU-2019:0098-1OPENSUSE-SU-2024:11420-1RHSA-2019:0049RHSA-2019:0204

Timeline

  1. 11-01-2019
    PublishedVulnerability first disclosed.
  2. 09-06-2025
    Last modifiedVulnerability information updated.

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 metrics

8 scores · 5 sources · 3 versions

EPSS trend

Probability

3.02%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

No change 0.00 pp

From 3.02% on 05-10-2026

05-10-202604-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (qualys.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat6 products
Chainguard5 products
  • py3-systemdAll versions (No fix recorded)
  • py3.10-systemdAll versions (No fix recorded)
  • py3.11-systemdAll versions (No fix recorded)
  • py3.12-systemdAll versions (No fix recorded)
  • py3.13-systemdAll versions (No fix recorded)
Debian2 products
Oracle2 products
Canonical1 product
Systemd_project1 product
The systemd project1 product
Ubuntu1 product
  • systemd< 229-4ubuntu21.15 | < 237-3ubuntu10.11

8 vendors · 19 products

References

26 links
Show all 26 references