CVE-2011-1473

OpenSSL <0.9.8l, 0.9.8m-1.x - DoS

Title source: llm

Description

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

Exploits (3)

nomisec WORKING POC 4 stars
by XDLDCG · poc
https://github.com/XDLDCG/bash-tls-reneg-attack
nomisec SCANNER
by khaledibnalwalid · poc
https://github.com/khaledibnalwalid/CVE-2011-1473-POC
nomisec NO CODE
by zjt674449039 · poc
https://github.com/zjt674449039/cve-2011-1473

References (25)

... and 5 more

Scores

EPSS 0.7412
EPSS Percentile 98.8%

Details

CWE
CWE-264
Status published
Products (12)
openssl/openssl 0.9.8m (2 CPE variants)
openssl/openssl 0.9.8n
openssl/openssl 0.9.8o
openssl/openssl 0.9.8p
openssl/openssl 0.9.8r
openssl/openssl 0.9.8s
openssl/openssl 0.9.8t
openssl/openssl 0.9.8u
openssl/openssl 0.9.8v
openssl/openssl 0.9.8w
... and 2 more
Published Jun 16, 2012
Tracked Since Feb 18, 2026