(Sun Issues Fix) Kerberos krb5_recvauth() Double-Free Error May Let Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1014472 |
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SecurityTracker URL: http://securitytracker.com/id/1014472
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CVE Reference:
CVE-2005-1689
(Links to External Site)
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Updated: Aug 30 2005
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Original Entry Date: Jul 13 2005
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Impact:
Execution of arbitrary code via network, Root access via network, User access via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): krb5-1.4.1 and prior versions
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Description:
A double-free memory vulnerability was reported in Kerberos in the krb5_recvauth() function. A remote user may be able to execute arbitrary code.
A remote user can create certain error conditions to cause the krb5_recvauth() function to free memory that has been previously freed. Arbitrary code may be executed.
If the target system is a Kerberos Key Distribution Center (KDC) host, then the entire Kerberos realm may be compromised.
The 'kpropd', 'klogind', and 'krshd' applications are affected.
The vulnerability resides in 'krb/recvauth.c'.
The vendor credits Magnus Hagander with reporting this vulnerability.
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Impact:
A remote user may be able to execute arbitrary code.
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Solution:
Sun has issued a fix.
SPARC Platform
Solaris 8 with the Solaris Supplemental Encryption packages and with patch 112390-11 or later
Solaris 8 with patch 112237-13 or later
Solaris 9 with patch 112908-20 or later
Solaris 10 with patch 120469-02 or later
x86 Platform
Solaris 8 with the Solaris Supplemental Encryption packages and with patch 112240-10 or later
Solaris 8 with patch 112238-12 or later
Solaris 9 with patch 115168-08 or later
Solaris 10 with patch 120470-02 or later
The vendor's advisory is available at:
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101810-1
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Vendor URL: sunsolve.sun.com/search/document.do?assetkey=1-26-101810-1 (Links to External Site)
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Cause:
State error
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Underlying OS:
UNIX (Solaris - SunOS)
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Wed, 13 Jul 2005 03:33:16 -0400
Subject: http://sunsolve.sun.com/search/document.do?assetkey=1-26-101810-1
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# Sun Alert ID: 101810
# Synopsis: Security Vulnerability in the Kerberos krb5_recvauth() Library
# Category: Security
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Product: Solaris 9 Operating System, Solaris 10 Operating System, Sun Enterprise
Authentication Mechanism Software, Solaris 7 Operating System, Solaris 8 Operating
System
# BugIDs: 6284864
# Avoidance: Workaround
# State: Workaround
# Date Released: 12-Jul-2005
# Date Closed:
# Date Modified:
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