Home/CVE/An allocation of memory without limits, that could result in the stack clashing with another memory region, was discover
CVE

CVE-2018-16865

An allocation of memory without limits, that could result in the stack clashing with another memory region, was discover

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.

HIGH · CVSS 7.8 EPSS 0.01222
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-770Allocation of Resources Without Limits or Throttling
CWE-770Allocation of Resources Without Limits or Throttling
▤

Affected Products & Versions

11
systemd project systemd<= 240
redhat enterprise linux desktopall versions
redhat enterprise linux serverall versions
redhat enterprise linux server ausall versions
redhat enterprise linux server eusall versions
redhat enterprise linux server tusall versions
redhat enterprise linux workstationall versions
debian linuxall 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

7.8
HIGH · 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 · 09:29 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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

15
suse-csafopenSUSE-SU-2024:11420-1
msrcCVE-2018-16865
suse-csafSUSE-SU-2019:0054-2
suse-csafopenSUSE-SU-2019:0098-1
suse-csafSUSE-SU-2019:0135-1
🔗

References & Sources

13
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.openwall.com/lists/oss-security/2021/07/20/2Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/106525Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHBA-2019:0327Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16865Issue TrackingPatch
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