National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2012-1015 Detail

Current Description

The kdc_handle_protected_negotiation function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x, 1.9.x before 1.9.5, and 1.10.x before 1.10.3 attempts to calculate a checksum before verifying that the key type is appropriate for a checksum, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized pointer free, heap memory corruption, and daemon crash) via a crafted AS-REQ request.

Source:  MITRE
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 9.3 HIGH
Vector: (AV:N/AC:M/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-updates/2012-08/msg00016.html
http://rhn.redhat.com/errata/RHSA-2012-1131.html
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2012-001.txt Patch Vendor Advisory
http://www.debian.org/security/2012/dsa-2518
http://www.mandriva.com/security/advisories?name=MDVSA-2012:120

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:mit:kerberos:5-1.8:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:mit:kerberos:5-1.8.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:mit:kerberos:5-1.8.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:mit:kerberos:5-1.8.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:mit:kerberos:5-1.8.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:mit:kerberos:5-1.8.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:mit:kerberos:5-1.8.6:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:a:mit:kerberos:5-1.9.4:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:a:mit:kerberos:5-1.10:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:mit:kerberos:5-1.10.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:mit:kerberos:5-1.10.2:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2012-1015
NVD Published Date:
08/06/2012
NVD Last Modified:
04/04/2013