CVE-2011-3210

2011-09-2200:00:00

ubuntu.com

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.305 Low

EPSS

Percentile

96.9%

JSON

The ephemeral ECDH ciphersuite functionality in OpenSSL 0.9.8 through
0.9.8r and 1.0.x before 1.0.0e does not ensure thread safety during
processing of handshake messages from clients, which allows remote
attackers to cause a denial of service (daemon crash) via out-of-order
messages that violate the TLS protocol.

Notes

Author	Note
jdstrand	from upstream: applications are only affected by the CRL checking vulnerability if they enable OpenSSL’s internal CRL checking which is off by default. For example by setting the verification flag X509_V_FLAG_CRL_CHECK or X509_V_FLAG_CRL_CHECK_ALL The following packages in main use this X509_V_FLAG_CRL_CHECK* curl, dovecot, exim4, freeradius, ipsec-tools, krb5, libio-socket-ssl-perl, libnet-ssleay-perl, likewise-open, mysql-5.1, nmap, openldap, openvpn, postgresql-9.1, ruby1.8, squid, telepathy-gabble, telepathy-salut, wpasupplicant the above need to also support ECDH to be affected

Author

Note

jdstrand

from upstream: applications are only affected by the CRL checking vulnerability if they enable OpenSSL’s internal CRL checking which is off by default. For example by setting the verification flag X509_V_FLAG_CRL_CHECK or X509_V_FLAG_CRL_CHECK_ALL The following packages in main use this X509_V_FLAG_CRL_CHECK* curl, dovecot, exim4, freeradius, ipsec-tools, krb5, libio-socket-ssl-perl, libnet-ssleay-perl, likewise-open, mysql-5.1, nmap, openldap, openvpn, postgresql-9.1, ruby1.8, squid, telepathy-gabble, telepathy-salut, wpasupplicant the above need to also support ECDH to be affected

OSVersionArchitecturePackageVersionFilename
ubuntu8.04noarchopenssl< 0.9.8g-4ubuntu3.15UNKNOWN
ubuntu10.04noarchopenssl< 0.9.8k-7ubuntu8.8UNKNOWN
ubuntu10.10noarchopenssl< 0.9.8o-1ubuntu4.6UNKNOWN
ubuntu11.04noarchopenssl< 0.9.8o-5ubuntu1.2UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	8.04	noarch	openssl	< 0.9.8g-4ubuntu3.15	UNKNOWN
ubuntu	10.04	noarch	openssl	< 0.9.8k-7ubuntu8.8	UNKNOWN
ubuntu	10.10	noarch	openssl	< 0.9.8o-1ubuntu4.6	UNKNOWN
ubuntu	11.04	noarch	openssl	< 0.9.8o-5ubuntu1.2	UNKNOWN