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Vulnerability record · CVE-2008-5617 · published 17 December 2008

CVE-2008-5617: Rsyslog permissions and access controls vulnerability

Rsyslog · Rsyslog

The ACL handling in rsyslog 3.12.1 to 3.20.0, 4.1.0, and 4.1.1 does not follow $AllowedSender directive, which allows remote attackers to bypass intended access restrictions and spoof log messages or create a large number of spurious messages.

8.5 CVSS 2.0 High EPSS 2.2% · top 18.2% CWE-264 · Permissions and access controls
8.5CVSS 2.0 base score
2.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References
16 Jun 2026Last modified by NVD

Description

The ACL handling in rsyslog 3.12.1 to 3.20.0, 4.1.0, and 4.1.1 does not follow $AllowedSender directive, which allows remote attackers to bypass intended access restrictions and spoof log messages or create a large number of spurious messages.

AV:N/AC:L/Au:N/C:N/I:P/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://secunia.com/advisories/32857 Vendor Advisory
http://www.rsyslog.com/Article322.phtml PatchVendor Advisory
http://www.rsyslog.com/Article327.phtml
http://www.rsyslog.com/Topic4.phtml
http://www.securityfocus.com/bid/32630
https://exchange.xforce.ibmcloud.com/vulnerabilities/47080
http://secunia.com/advisories/32857 Vendor Advisory
http://www.rsyslog.com/Article322.phtml PatchVendor Advisory
http://www.rsyslog.com/Article327.phtml
http://www.rsyslog.com/Topic4.phtml
http://www.securityfocus.com/bid/32630
https://exchange.xforce.ibmcloud.com/vulnerabilities/47080

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2019-17041Rsyslog out-of-bounds write vulnerabilityAn issue was discovered in Rsyslog v8.1908.0. contrib/pmaixforwardedfrom/pmaixforwardedfrom.c has a heap overflow in the parser for AIX log messages.…EPSS 4.4%9.8CVE-2019-17042Rsyslog improper input validation vulnerabilityAn issue was discovered in Rsyslog v8.1908.0. contrib/pmcisconames/pmcisconames.c has a heap overflow in the parser for Cisco log messages. The parse…EPSS 3.1%9.8CVE-2019-17040Rsyslog out-of-bounds read vulnerabilitycontrib/pmdb2diag/pmdb2diag.c in Rsyslog v8.1908.0 allows out-of-bounds access because the level length is mishandled.EPSS 2.4%9.8CVE-2017-12588Rsyslog vulnerabilityThe zmq3 input and output modules in rsyslog before 8.28.0 interpreted description fields as format strings, possibly allowing a format string attack…EPSS 2.8%8.1CVE-2022-24903Rsyslog classic buffer overflow vulnerabilityRsyslog is a rocket-fast system for log processing. Modules for TCP syslog reception have a potential heap buffer overflow when octet-counted framing…EPSS 3.9%7.5CVE-2026-19654Rsyslog out-of-bounds read vulnerabilityA unauthenticated remote peer may lead rsyslogd to crash due to a flaw in the optional imptcp module. A crafted input sequence during oversize-frame …EPSS 0.47%7.5CVE-2018-16881Rsyslog integer overflow vulnerabilityA denial of service vulnerability was found in rsyslog in the imptcp module. An attacker could send a specially crafted message to the imptcp socket,…EPSS 2.2%7.5CVE-2014-3634Sysklogd project sysklogd memory buffer overflow vulnerabilityrsyslog before 7.6.6 and 8.x before 8.4.1 and sysklogd 1.5 and earlier allows remote attackers to cause a denial of service (crash), possibly execute…EPSS 7.5%

Source: NIST National Vulnerability Database (record CVE-2008-5617), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.