Integer overflow in Rsyslog
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 class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.022 (82.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
- Rsyslog
- The Rsyslog Project Rsyslog: — versions 8.27.0
- Debian Linux — versions 9.0
- Red Hat Enterprise Linux — versions 7.0
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux For IBM Z Systems — versions 7.0
- Red Hat Enterprise Linux For Power Big Endian — versions 7.0
- Red Hat Enterprise Linux For Power Little Endian — versions 7.0
- Red Hat Enterprise Linux For Scientific Computing — versions 7.0
- Red Hat Enterprise Linux Server — versions 7.0
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2019:2110 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:2439 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:2437 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHBA-2019:2501 (vendor-advisory, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Mitigation, Issue Tracking)
- lists.debian.org/debian-lts-announce/2022/05/msg00028.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-16881?
- CVE-2018-16881 is a high-severity vulnerability in Rsyslog, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2019-01-25.
- How severe is CVE-2018-16881?
- High severity. CVSS v3 base score is 7.5 out of 10.