Input validation error in Kerberos 5 - CVE-2010-4022
Published: February 10, 2011 / Updated: August 11, 2020
Vulnerability identifier: #VU45334
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2010-4022
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: MIT
Affected software:
Kerberos 5
Kerberos 5
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
The do_standalone function in the MIT krb5 KDC database propagation daemon (kpropd) in Kerberos 1.7, 1.8, and 1.9, when running in standalone mode, does not properly handle when a worker child process "exits abnormally," which allows remote attackers to cause a denial of service (listening process termination, no new connections, and lack of updates in slave KVC) via unspecified vectors.
How to mitigate CVE-2010-4022
Install update from vendor's website.
Sources
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00004.html
- http://secunia.com/advisories/43260
- http://secunia.com/advisories/43275
- http://securityreason.com/securityalert/8070
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-001.txt
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:025
- http://www.redhat.com/support/errata/RHSA-2011-0200.html
- http://www.securityfocus.com/archive/1/516286/100/0/threaded
- http://www.securityfocus.com/bid/46269
- http://www.securitytracker.com/id?1025035
- http://www.vupen.com/english/advisories/2011/0329
- http://www.vupen.com/english/advisories/2011/0333
- http://www.vupen.com/english/advisories/2011/0347
- http://www.vupen.com/english/advisories/2011/0464