Home/CVE/A denial of service vulnerability was found in rsyslog in the imptcp module. An attacker could send a specially crafted
CVE

CVE-2018-16881

A denial of service vulnerability was found in rsyslog in the imptcp module. An attacker could send a specially crafted

A denial of service vulnerability was found in rsyslog in the imptcp module. An attacker could send a specially crafted message to the imptcp socket, which would cause rsyslog to crash. Versions before 8.27.0 are vulnerable.

HIGH · CVSS 7.5 EPSS 0.02616
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-190Integer Overflow or Wraparound
CWE-190Integer Overflow or Wraparound
▤

Affected Products & Versions

12
rsyslog< 8.27.0
redhat virtualization managerall versions
redhat enterprise linux desktopall versions
redhat enterprise linux for ibm z systemsall versions
redhat enterprise linux for power big endianall versions
redhat enterprise linux for power little endianall versions
redhat enterprise linux for scientific computingall versions
redhat enterprise linux serverall versions
◈

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.
productmediumPowershell Detect Virtualization Environment
▣

Scoring & Timeline

7.5
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 NVD25 Jan 2019 · 06:29 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

6
usnUSN-5419-1
rhsaRHSA-2019:2439Moderate
rhsaRHSA-2019:2437Important
suse-csafSUSE-SU-2019:0209-1
rhsaRHBA-2019:2501Moderate
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16881Issue TrackingMitigationPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/05/msg00028.htmlMailing ListThird Party Advisory
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