SB2012060402 - Input validation error in Xinetd
Published: June 4, 2012 Updated: August 11, 2020
Security Bulletin ID
SB2012060402
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2012-0862)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
builtins.c in Xinetd before 2.3.15 does not check the service type when the tcpmux-server service is enabled, which exposes all enabled services and allows remote attackers to bypass intended access restrictions via a request to tcpmux port 1.
Remediation
Install update from vendor's website.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2012-May/081428.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-May/081446.html
- http://rhn.redhat.com/errata/RHSA-2013-1302.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:155
- http://www.openwall.com/lists/oss-security/2012/05/09/5
- http://www.openwall.com/lists/oss-security/2012/05/10/2
- http://www.osvdb.org/81774
- http://www.securityfocus.com/bid/53720
- http://www.securitytracker.com/id?1027050
- http://www.xinetd.org/#changes
- https://bugzilla.redhat.com/attachment.cgi?id=583311
- https://bugzilla.redhat.com/show_bug.cgi?id=790940
- https://exchange.xforce.ibmcloud.com/vulnerabilities/75965