CVE-2018-16881
HIGHCVSS 7.5/10EPSS 2.24%
Last modified
CVE-2018-16881 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 2.24% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Rsyslog | Rsyslog | < 8.27.0 |
| Redhat | Virtualization Manager | 4.3 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux For Ibm Z Systems | 7.0 |
| Redhat | Enterprise Linux For Power Big Endian | 7.0 |
| Redhat | Enterprise Linux For Power Little Endian | 7.0 |
| Redhat | Enterprise Linux For Scientific Computing | 7.0 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Workstation | 7.0 |
| Redhat | Virtualization | 4.0 |
| Redhat | Virtualization Host | 4.0 |
| Debian | Debian Linux | 9.0 |
References
- https://access.redhat.com/errata/RHBA-2019:2501Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2110Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2437Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2439Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16881Issue Tracking, Mitigation, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/05/msg00028.htmlMailing List, Third Party Advisory
- https://access.redhat.com/errata/RHBA-2019:2501Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2110Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2437Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2439Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16881Issue Tracking, Mitigation, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/05/msg00028.htmlMailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-16881?
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.
How severe is CVE-2018-16881?
CVE-2018-16881 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.24% probability of exploitation in the next 30 days.
How do I fix CVE-2018-16881?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2018-16881?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST