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Servers and applications

CVE-2011-4577

OpenSSL before 0.9.8s and 1.x before 1.0.0f, when RFC 3779 support is enabled, allows remote attackers to cause a denial of service (assertion failure) via an X.509 certificate containing certificate-extension data associated with (1) IP address blocks or (2) Autonomous System (AS) identifiers.

Severity
Medium 4.3
Published
6 Jan 2012
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
8.2% in the next 30 daysHigher than 94% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-399
Attack
Over the network · No login needed
Attacker can
Slow it down
CVSS vector
AV:N/AC:M/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSLServers and applications · cpe:a:openssl:openssl
  • Version 1.0.0d
  • Version 1.0.0c
  • Version 1.0.0b
  • Version 1.0.0a
All 64 release lines
  • Every version up to 0.9.8r
  • Every version up to 1.0.0e
  • Version 0.9.1c
  • Version 0.9.2b
  • Version 0.9.4
  • Version 0.9.5
  • Version 0.9.5a
  • Version 0.9.6
  • Version 0.9.6a
  • Version 0.9.6b
  • Version 0.9.6c
  • Version 0.9.6d
  • Version 0.9.6e
  • Version 0.9.6f
  • Version 0.9.6g
  • Version 0.9.6h
  • Version 0.9.6h-bogus
  • Version 0.9.6i
  • Version 0.9.6j
  • Version 0.9.6k
  • Version 0.9.6l
  • Version 0.9.6m
  • Version 0.9.7
  • Version 0.9.7a
  • Version 0.9.7b
  • Version 0.9.7c
  • Version 0.9.7d
  • Version 0.9.7e
  • Version 0.9.7f
  • Version 0.9.7g
  • Version 0.9.7h
  • Version 0.9.7i
  • Version 0.9.7j
  • Version 0.9.7k
  • Version 0.9.7l
  • Version 0.9.7m
  • Version 0.9.8
  • Version 0.9.8a
  • Version 0.9.8b
  • Version 0.9.8c
  • Version 0.9.8d
  • Version 0.9.8e
  • Version 0.9.8f
  • Version 0.9.8g
  • Version 0.9.8h
  • Version 0.9.8i
  • Version 0.9.8j
  • Version 0.9.8k
  • Version 0.9.8l
  • Version 0.9.8m
  • Version 0.9.8n
  • Version 0.9.8o
  • Version 0.9.8p
  • Version 0.9.8q
  • Version 1.0.0-beta1
  • Version 1.0.0-beta2
  • Version 1.0.0-beta3
  • Version 1.0.0-beta4
  • Version 1.0.0-beta5
  • Version 1.0.0
  • Version 1.0.0a
  • Version 1.0.0b
  • Version 1.0.0c
  • Version 1.0.0d

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-4577
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-4577