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OpenSSL SSL/TLS Handshake Denial of Service Vulnerabilities
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Secunia Advisory:
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SA11139
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Release Date:
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2004-03-17
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Popularity:
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32,056 views
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Critical:
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Moderately critical
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Impact:
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DoS
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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: | OpenSSL 0.9.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:
Three vulnerabilities have been discovered in OpenSSL, which can be exploited by malicious people to cause a DoS (Denial-of-Service).
1) A NULL-pointer assignment in the "do_change_cipher_spec()" function used during the SSL/TLS handshake can be exploited to cause OpenSSL to crash via a specially crafted SSL/TLS handshake.
This vulnerability affects all versions of OpenSSL 0.9.6c through 0.9.6k and 0.9.7a through 0.9.7c.
2) An unspecified error in a fix added to OpenSSL 0.9.6d some time ago can result in a DoS caused by an infinite loop.
This vulnerability only affects older 0.9.6 versions with backported security patches.
3) An out-of-bounds read error exists in a routine used during the SSL/TLS handshake when using Kerberos ciphersuites. This can be exploited to crash OpenSSL via a specially crafted SSL/TLS handshake.
This vulnerability affects versions 0.9.7a, 0.9.7b, and 0.9.7c.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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