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CVE-2010-4180

OpenSSL before 0.9.8q, and 1.0.x before 1.0.0c, when SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG is enabled, does not properly prevent modification of the ciphersu…

Impact

OpenSSL before 0.9.8q, and 1.0.x before 1.0.0c, when SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG is enabled, does not properly prevent modification of the ciphersuite in the session cache, which allows remote attackers to force the downgrade to an unintended cipher via vectors involving sniffing network traffic to discover a session identifier.

Affected products

VendorProductAffected versions
OpensslOpenssl
before 0.9.8q
from 1.0.0 before 1.0.0c
FedoraprojectFedora
Versions 13, 14
DebianDebian Linux
Version 5.0
CanonicalUbuntu Linux
Versions 6.06, 8.04, 9.04, 10.04, 10.10
OpensuseOpensuse
Versions 11.1, 11.2, 11.3, 11.4
SuseLinux Enterprise
Version 11.0
SuseLinux Enterprise Desktop
Versions 10, 11
SuseLinux Enterprise Server
Versions 9, 10
F5Nginx
before 0.9.2

References