#VU45332 Input validation error in Kerberos - CVE-2011-0282
Vulnerability identifier: #VU45332
Vulnerability risk: Medium
CVSSv4.0: 2.7 [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:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Kerberos
Server applications /
Encryption software
Vendor: MIT
Description
The vulnerability allows remote attackers to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (NULL pointer dereference or buffer over-read, and daemon crash) via a crafted principal name.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Kerberos: 5-1.6.3
External links
https://lists.opensuse.org/opensuse-security-announce/2011-02/msg00004.html
https://secunia.com/advisories/43260
https://secunia.com/advisories/43273
https://secunia.com/advisories/43275
https://secunia.com/advisories/46397
https://securityreason.com/securityalert/8073
https://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-002.txt
https://www.mandriva.com/security/advisories?name=MDVSA-2011:024
https://www.mandriva.com/security/advisories?name=MDVSA-2011:025
https://www.redhat.com/support/errata/RHSA-2011-0199.html
https://www.redhat.com/support/errata/RHSA-2011-0200.html
https://www.securityfocus.com/archive/1/516299/100/0/threaded
https://www.securityfocus.com/archive/1/520102/100/0/threaded
https://www.securityfocus.com/bid/46271
https://www.securitytracker.com/id?1025037
https://www.vmware.com/security/advisories/VMSA-2011-0012.html
https://www.vupen.com/english/advisories/2011/0330
https://www.vupen.com/english/advisories/2011/0333
https://www.vupen.com/english/advisories/2011/0347
https://www.vupen.com/english/advisories/2011/0464
https://exchange.xforce.ibmcloud.com/vulnerabilities/65323
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
