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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2018
- CVE-2018-16876ansible before versions 2.5.14, 2.6.11, 2.7.5 is vulnerable …5.3
- CVE-2018-16877A flaw was found in the way pacemaker's client-server authen…7.8
- CVE-2018-16878A flaw was found in pacemaker up to and including version 2.…5.5
- CVE-2018-16879Ansible Tower before version 3.3.3 does not set a secure cha…9.8
- CVE-2018-1688IBM Jazz Foundation (IBM Rational Collaborative Lifecycle Ma…5.4
- CVE-2018-16880A flaw was found in the Linux kernel's handle_rx() function …7
- CVE-2018-16882A use-after-free issue was found in the way the Linux kernel…8.8
- CVE-2018-16883sssd versions from 1.13.0 to before 2.0.0 did not properly r…2.5
- CVE-2018-16884A flaw was found in the Linux kernel's NFS41+ subsystem. NFS…8
- CVE-2018-16885A flaw was found in the Linux kernel that allows the userspa…4.7
- CVE-2018-16886etcd versions 3.2.x before 3.2.26 and 3.3.x before 3.3.11 ar…8.1
- CVE-2018-16887A cross-site scripting (XSS) flaw was found in the katello c…5.4
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