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ISC BIND "EVP_VerifyFinal()" and "DSA_do_verify()" Spoofing Vulnerability
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Secunia Advisory:
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SA33404
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Release Date:
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2009-01-08
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Last Update:
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2009-01-28
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Popularity:
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4,257 views
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Critical:
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Less critical
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Impact:
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Spoofing
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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: | ISC BIND 9.2.x
ISC BIND 9.3.x
ISC BIND 9.4.x
ISC BIND 9.5.x
ISC BIND 9.6.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:
A vulnerability has been reported in ISC BIND, which potentially can be exploited by malicious people to conduct spoofing attacks.
The vulnerability is caused due to certain ISC BIND functions not correctly verifying the return value of the OpenSSL "EVP_VerifyFinal()" and "DSA_do_verify()" functions when validating the signature of DSA and NSEC3DSA keys. This may be exploited to e.g. send spoofed responses from zones using DSA or NSEC3DSA keys.
Successful exploitation requires that the zone uses the DSA or NSEC3DSA algorithms.
The vulnerability is reported in the following versions:
* BIND 9.0 (all versions)
* BIND 9.1 (all versions)
* BIND 9.2 (all versions)
* BIND 9.3.0, 9.3.1, 9.3.2, 9.3.3, 9.3.4, 9.3.5, 9.3.6
* BIND 9.4.0, 9.4.1, 9.4.2, 9.4.3
* BIND 9.5.0, 9.5.1
* BIND 9.6.0
This is related to:
SA33338
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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