Vulnerability Details : 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.
Vulnerability category: OverflowDenial of service
Products affected by CVE-2018-16881
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:virtualization_manager:4.3:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-16881
1.03%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 84 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-16881
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
5.3
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
3.9
|
1.4
|
Red Hat, Inc. | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2018-16881
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2018-16881
-
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16881
1658366 – (CVE-2018-16881) CVE-2018-16881 rsyslog: imptcp: integer overflow when Octet-Counted TCP Framing is enabledIssue Tracking;Mitigation;Patch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2022/05/msg00028.html
[SECURITY] [DLA 3016-1] rsyslog security updateMailing List;Third Party Advisory
-
https://access.redhat.com/errata/RHSA-2019:2437
RHSA-2019:2437 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
https://access.redhat.com/errata/RHSA-2019:2110
RHSA-2019:2110 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
https://access.redhat.com/errata/RHBA-2019:2501
RHBA-2019:2501 - Bug Fix Advisory - Red Hat Customer PortalThird Party Advisory
-
https://access.redhat.com/errata/RHSA-2019:2439
RHSA-2019:2439 - Security Advisory - Red Hat Customer PortalThird Party Advisory
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