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    CVE-2014-3683

    Integer overflow in rsyslog before 7.6.7 and 8.x before 8.4.2 and sysklogd 1.5 and earlier allows remote attackers to cause a denial of service (crash) via a large priority (PRI) value. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-3634.

    Published:Oct 2, 2014
    Last Modified:Apr 12, 2025
    EPS:Nov 2, 2014
    EPSS Score:0.01888
    CVSS Score:5

    Affected Products

    Vendor
    Rsyslog
    Product
    Rsyslog
    Vendor
    Sysklogd Project
    Product
    Sysklogd

    Exploits

    http://www.rsyslog.com/remote-syslog-pri-vulnerability-cve-2014-3683/http://www.rsyslog.com/remote-syslog-pri-vulnerability-cve-2014-3683/

    Common Weakness Enumeration

    CWE-190 Integer Overflow or Wraparound

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

    CVE-2026-78002 (CVSS 7.5) — A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the Rain…
    CVE-2026-19654 (CVSS 7.5) — A unauthenticated remote peer may lead rsyslogd to crash due to a flaw in the optional imptcp module. A crafte…
    CVE-2022-24903 (CVSS 8.1) — Rsyslog is a rocket-fast system for log processing. Modules for TCP syslog reception have a potential heap buf…
    CVE-2019-17042 (CVSS 9.8) — An issue was discovered in Rsyslog v8.1908.0. contrib/pmcisconames/pmcisconames.c has a heap overflow in the p…
    CVE-2019-17041 (CVSS 9.8) — An issue was discovered in Rsyslog v8.1908.0. contrib/pmaixforwardedfrom/pmaixforwardedfrom.c has a heap overf…
    CVE-2019-17040 (CVSS 9.8) — contrib/pmdb2diag/pmdb2diag.c in Rsyslog v8.1908.0 allows out-of-bounds access because the level length is mis…
    CVE-2017-12588 (CVSS 9.8) — The zmq3 input and output modules in rsyslog before 8.28.0 interpreted description fields as format strings, p…
    CVE-2018-16881 (CVSS 7.5) — A denial of service vulnerability was found in rsyslog in the imptcp module. An attacker could send a speciall…
    CVE-2015-3243 (CVSS 5.5) — rsyslog uses weak permissions for generating log files, which allows local users to obtain sensitive informati…
    CVE-2014-3634 (CVSS 7.5) — rsyslog before 7.6.6 and 8.x before 8.4.1 and sysklogd 1.5 and earlier allows remote attackers to cause a deni…

    References

    http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00005.html
    http://lists.opensuse.org/opensuse-updates/2014-10/msg00020.html
    http://lists.opensuse.org/opensuse-updates/2014-10/msg00021.html
    http://secunia.com/advisories/61494
    http://www.debian.org/security/2014/dsa-3047
    http://www.openwall.com/lists/oss-security/2014/09/30/15
    http://www.openwall.com/lists/oss-security/2014/10/03/1
    http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
    http://www.rsyslog.com/remote-syslog-pri-vulnerability-cve-2014-3683/
    http://www.ubuntu.com/usn/USN-2381-1
    http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00005.html
    http://lists.opensuse.org/opensuse-updates/2014-10/msg00020.html
    http://lists.opensuse.org/opensuse-updates/2014-10/msg00021.html
    http://secunia.com/advisories/61494
    http://www.debian.org/security/2014/dsa-3047
    http://www.openwall.com/lists/oss-security/2014/09/30/15
    http://www.openwall.com/lists/oss-security/2014/10/03/1
    http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
    http://www.rsyslog.com/remote-syslog-pri-vulnerability-cve-2014-3683/
    http://www.ubuntu.com/usn/USN-2381-1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High