CVE-2011-4577

Medium

not-fixedNot Available

Security vulnerability in openssl

Description

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.

Impact Assessment

This medium-severity vulnerability could be exploited under certain conditions to compromise security controls or access sensitive information. Should be addressed in a timely manner.

CVSS v3.1 Score

4.3

AV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS — Exploit Prediction

8.19%

Probability of exploitation in the next 30 days · more likely than 94.8% of all CVEs.

Quick Facts

PublishedJan 1, 1

Last ModifiedJan 1, 1

Discovered ByIndependent Security Researcher

Statusnot-fixed

Weakness Types

CWE-399

Unknown CWE

This vulnerability is associated with CWE-399. This type of weakness can lead to security issues if not properly addressed.

Attack Metrics

CVSS v3.1 Metrics Breakdown

attack Vector

attack Complexity

privileges Required

user Interaction

scope

Unchanged

confidentiality Impact

Medium

integrity Impact

Medium

availability Impact

Medium

Remediation Guide

How to Fix This Vulnerability

Remediation Steps

1Review and audit affected systems for potential exploitation
2Implement additional security controls if immediate patching is not possible
3Monitor for suspicious activity related to this vulnerability

Mitigation Strategies

Network Segmentation

Medium

Isolate affected systems from untrusted networks until patching is complete

Monitoring and Detection

Medium

Implement enhanced monitoring for exploitation attempts and unusual behavior

Event History

Vulnerability Timeline

Vulnerability published

0001-01-01T00:00:00Z

published

▪ Common questions

How severe is CVE-2011-4577?

CVE-2011-4577 is rated MEDIUM with a CVSS score of 4.3.

What kind of weakness is CVE-2011-4577?

CVE-2011-4577 is classified as CWE-399 — Security vulnerability in openssl.

Back to All Vulnerabilities

CVE-2011-4577

Medium

not-fixedNot Available

Security vulnerability in openssl

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Description

Impact Assessment

This medium-severity vulnerability could be exploited under certain conditions to compromise security controls or access sensitive information. Should be addressed in a timely manner.

CVSS v3.1 Score

4.3

AV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS — Exploit Prediction

8.19%

Probability of exploitation in the next 30 days · more likely than 94.8% of all CVEs.

Quick Facts

PublishedJan 1, 1

Last ModifiedJan 1, 1

Discovered ByIndependent Security Researcher

Statusnot-fixed

Weakness Types

CWE-399

Unknown CWE

This vulnerability is associated with CWE-399. This type of weakness can lead to security issues if not properly addressed.

Attack Metrics

CVSS v3.1 Metrics Breakdown

attack Vector

attack Complexity

privileges Required

user Interaction

scope

Unchanged

confidentiality Impact

Medium

integrity Impact

Medium

availability Impact

Medium

Remediation Guide

How to Fix This Vulnerability

Remediation Steps

1Review and audit affected systems for potential exploitation
2Implement additional security controls if immediate patching is not possible
3Monitor for suspicious activity related to this vulnerability

Mitigation Strategies

Network Segmentation

Medium

Isolate affected systems from untrusted networks until patching is complete

Monitoring and Detection

Medium

Implement enhanced monitoring for exploitation attempts and unusual behavior

Event History

Vulnerability Timeline

Vulnerability published

0001-01-01T00:00:00Z

published

▪ Common questions

How severe is CVE-2011-4577?

CVE-2011-4577 is rated MEDIUM with a CVSS score of 4.3.

What kind of weakness is CVE-2011-4577?

CVE-2011-4577 is classified as CWE-399 — Security vulnerability in openssl.

Back to All Vulnerabilities