What is CVE-2011-4577?

CVE-2011-4577 is a vulnerability in Openssl, classified under CWE-399. Published 2012-01-06.

Is CVE-2011-4577 known to be exploited?

5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Openssl

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.

EPSS: 0.093 (94.9th percentile) — read the EPSS interpretation.

Affected products

Openssl — versions 0.9.1c, 0.9.2b, 0.9.4
N/a — versions n/a

Weakness classification (CWE)

CWE-399

Public proof-of-concept exploits

References

secalert@redhat.com (x_refsource_HP, vendor-advisory)
secalert@redhat.com (x_refsource_CONFIRM)
secalert@redhat.com (vendor-advisory, x_refsource_SUSE)
secalert@redhat.com (vendor-advisory, x_refsource_FEDORA)
secalert@redhat.com (x_refsource_CONFIRM)
secalert@redhat.com (vendor-advisory, x_refsource_SUSE)
secalert@redhat.com (x_refsource_CONFIRM)
secalert@redhat.com (vendor-advisory, x_refsource_APPLE)
secalert@redhat.com (US Government Resource, x_refsource_CERT-VN, third-party-advisory)
secalert@redhat.com (x_refsource_HP, vendor-advisory)

Frequently asked questions

What is CVE-2011-4577?: CVE-2011-4577 is a vulnerability in Openssl, classified under CWE-399. Published 2012-01-06.
Is CVE-2011-4577 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.