Home/CVE/An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon '
CVE

CVE-2018-16866

An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon '

An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon ':'. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable.

LOW · CVSS 3.3 EPSS 0.00061
Schedule remediation
  • Public exploit or PoC is available
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-125Out-of-bounds Read
CWE-125Out-of-bounds Read
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
▤

Affected Products & Versions

21
systemd project systemd>= 221 and <= 239
debian linuxall versions
canonical ubuntu linuxall versions
netapp active iq performance analytics servicesall versions
netapp element softwareall versions
redhat enterprise linuxall versions
redhat enterprise linux compute node eusall versions
redhat enterprise linux desktopall versions
⚠

Public Exploits & PoCs

2
pocpacketstormsecurity.com · System-Down-A-systemd-journald-Exploit.htmlpacketstormsecurity.com
pocwww.qualys.com · system-down.txtwww.qualys.com
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumSystemd Service Creation
▣

Scoring & Timeline

3.3
LOW · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 Jan 2019 · 07:29 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

10
msrcCVE-2018-16866
rhsaRHBA-2020:0547Important
suse-csafopenSUSE-SU-2019:0098-1
suse-csafSUSE-SU-2019:0135-1
suse-csafSUSE-SU-2019:0137-1
🔗

References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://seclists.org/fulldisclosure/2019/May/21Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2019/05/10/4Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/106527Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16866Issue TrackingPatchThird Party Advisory
https://seclists.org/bugtraq/2019/May/25Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/201903-07Third Party Advisory
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