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01 Record

CVE-2022-24903

Buffer overflow in TCP syslog server (receiver) components in rsyslog

HighPUBLISHEDCNA: GitHub_M
CNA base score8.1 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
View raw JSON

02 Description

Buffer overflow in TCP syslog server (receiver) components in rsyslog

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
3.94% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 90.0% of scored records. A rank, not a probability.
NVD base score
8.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2022-05-05 00:00Z4 YR AGO
Last updated
2025-04-23 18:31Z1 YR AGO
Reserved
2022-02-10
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
High (CVSS 8.1)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base
  • CWE-1284Improper Validation of Specified Quantity in InputBase
  • CWE-787Out-of-bounds WriteBase
Data version
5.1
Document digest
4f3df6eb026cc191c5a3a3a97b0dd7ad2b8b85fc91abdfadbdb407de86c3ab00

05 Affected products

VendorProductVersionsPlatforms
rsyslogrsyslog< 8.2204.1—

06 References

07 Fixed in

AlmaLinux 8

  • rsyslog
    Fixed in 8.2102.0-7.el8
  • rsyslog-crypto
    Fixed in 8.2102.0-7.el8
  • rsyslog-doc
    Fixed in 8.2102.0-7.el8
  • rsyslog-elasticsearch
    Fixed in 8.2102.0-7.el8
  • rsyslog-gnutls
    Fixed in 8.2102.0-7.el8
  • rsyslog-gssapi
    Fixed in 8.2102.0-7.el8
  • rsyslog-kafka
    Fixed in 8.2102.0-7.el8
  • rsyslog-mmaudit
    Fixed in 8.2102.0-7.el8
  • rsyslog-mmfields
    Fixed in 8.2102.0-7.el8
  • rsyslog-mmjsonparse
    Fixed in 8.2102.0-7.el8
  • rsyslog-mmkubernetes
    Fixed in 8.2102.0-7.el8
  • rsyslog-mmnormalize
    Fixed in 8.2102.0-7.el8
  • rsyslog-mmsnmptrapd
    Fixed in 8.2102.0-7.el8
  • rsyslog-mysql
    Fixed in 8.2102.0-7.el8
  • rsyslog-omamqp1
    Fixed in 8.2102.0-7.el8
  • rsyslog-openssl
    Fixed in 8.2102.0-7.el8
  • rsyslog-pgsql
    Fixed in 8.2102.0-7.el8
  • rsyslog-relp
    Fixed in 8.2102.0-7.el8
  • rsyslog-snmp
    Fixed in 8.2102.0-7.el8
  • rsyslog-udpspoof
    Fixed in 8.2102.0-7.el8

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • rsyslog
    Fixed in 8.2102.0-7.el8
  • rsyslog-crypto
    Fixed in 8.2102.0-7.el8
  • rsyslog-doc
    Fixed in 8.2102.0-7.el8
  • rsyslog-elasticsearch
    Fixed in 8.2102.0-7.el8
  • rsyslog-gnutls
    Fixed in 8.2102.0-7.el8
  • rsyslog-gssapi
    Fixed in 8.2102.0-7.el8
  • rsyslog-kafka
    Fixed in 8.2102.0-7.el8
  • rsyslog-mmaudit
    Fixed in 8.2102.0-7.el8
  • rsyslog-mmfields
    Fixed in 8.2102.0-7.el8
  • rsyslog-mmjsonparse
    Fixed in 8.2102.0-7.el8
  • rsyslog-mmkubernetes
    Fixed in 8.2102.0-7.el8
  • rsyslog-mmnormalize
    Fixed in 8.2102.0-7.el8
  • rsyslog-mmsnmptrapd
    Fixed in 8.2102.0-7.el8
  • rsyslog-mysql
    Fixed in 8.2102.0-7.el8
  • rsyslog-omamqp1
    Fixed in 8.2102.0-7.el8
  • rsyslog-openssl
    Fixed in 8.2102.0-7.el8
  • rsyslog-pgsql
    Fixed in 8.2102.0-7.el8
  • rsyslog-relp
    Fixed in 8.2102.0-7.el8
  • rsyslog-snmp
    Fixed in 8.2102.0-7.el8
  • rsyslog-udpspoof
    Fixed in 8.2102.0-7.el8

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • rsyslog
    Fixed in 8.2204.1-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • rsyslog
    Fixed in 8.2204.1-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • rsyslog
    Fixed in 8.2204.1-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 14.04 LTS

  • rsyslog
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • rsyslog
    Fixed in 8.32.0-1ubuntu4.2

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • rsyslog
    Fixed in 8.2001.0-1ubuntu1.3

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • rsyslog
    Fixed in 8.2112.0-2ubuntu2.2

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • rsyslog
    Fixed in 8.16.0-1ubuntu3.1+esm2
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.