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ubuntucveUbuntu.comUB:CVE-2011-1473
HistoryJun 16, 2012 - 12:00 a.m.

CVE-2011-1473

2012-06-1600:00:00
ubuntu.com
ubuntu.com
20

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

0.713 High

EPSS

Percentile

98.0%

DISPUTED OpenSSL before 0.9.8l, and 0.9.8m through 1.x, does not
properly restrict client-initiated renegotiation within the SSL and TLS
protocols, which might make it easier for remote attackers to cause a
denial of service (CPU consumption) by performing many renegotiations
within a single connection, a different vulnerability than CVE-2011-5094.
NOTE: it can also be argued that it is the responsibility of server
deployments, not a security library, to prevent or limit renegotiation when
it is inappropriate within a specific environment.

Bugs

Notes

Author Note
jdstrand Protocol issue. Nothing to be done at this time. Marking low because while renegotiation makes the DoS faster, standard DoS methods still apply for SSL servers that need to setup the SSL connection. per Redhat, should not affect httpd/mod_ssl
mdeslaur this CVE is specific to openssl, nss is in CVE-2011-5094 we’re not going to fix this, since it’s disputed

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

0.713 High

EPSS

Percentile

98.0%

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