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Kerberos V5 "krb5_aname_to_localname()" Buffer Overflow Vulnerabilities
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Secunia Advisory:
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SA11753
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Release Date:
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2004-06-02
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Last Update:
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2004-06-05
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Popularity:
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13,420 views
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Critical:
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Moderately critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Kerberos 5.x
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
Vulnerabilities have been discovered in Kerberos V5, which can be exploited by malicious users to compromise a vulnerable system.
The vulnerabilities are caused due to boundary errors within the "krb5_aname_to_localname()" library function during conversion of Kerberos principal names into local account names. These can be exploited to cause heap-based buffer overflows by passing an overly long principal name when authenticating.
Exploitation may allow execution of arbitrary code on a vulnerable system with root privileges. However, this requires successful authentication to a vulnerable service, and the explicit mapping or rules-based mapping functionality has been enabled (not default configuration).
The vulnerabilities affect version 1.3.3 and prior.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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