Vulnerability in OpenSSL
CVE-2011-1473
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
EPSS: 0.672 (99.2th percentile) — read the EPSS interpretation.
Affected products
- Openssl — versions 0.9.8m, 0.9.8n, 0.9.8o
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC)
- cve@mitre.org (mailing-list, x_refsource_MLIST)
- cve@mitre.org (mailing-list, x_refsource_MLIST)
- cve@mitre.org (x_refsource_MISC)
- cve@mitre.org (mailing-list, x_refsource_BUGTRAQ)
- cve@mitre.org (x_refsource_MISC)
- cve@mitre.org (mailing-list, x_refsource_MLIST)
- cve@mitre.org (x_refsource_HP, vendor-advisory)
- cve@mitre.org (mailing-list, x_refsource_MLIST)
- cve@mitre.org (x_refsource_MISC)
Frequently asked questions
- What is CVE-2011-1473?
- CVE-2011-1473 is a vulnerability in OpenSSL, classified under CWE-264. Published 2012-06-16.
- Is CVE-2011-1473 known to be exploited?
- 35 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.