CVE-2011-4109

Double free vulnerability in OpenSSL 0.9.8 before 0.9.8s, when X509_V_FLAG_POLICY_CHECK is enabled, allows remote attackers to have an unspecified impact by…

published January 6, 2012

CVSS
—
EPSS
17%
Percentile
97.1
In the wild
Unconfirmed
What it is

⚠️ A double free vulnerability lurks in OpenSSL 0.9.8 before version 0.9.8s, just waiting to ruin your policy checks! Think of it like a restaurant serving the same table twice for dessert — once for each course. If they don’t manage the orders properly, it could lead to confusion and leave your guests feeling unsatisfied! This vulnerability could allow attackers to disrupt the crucial policy checks, potentially leading to unexpected behaviors in the system. While the impact isn't specified, a failure in security checks can definitely spell trouble for any system relying on OpenSSL for secure communications.

Put simply

Think of it like a restaurant serving the same table twice for dessert — once for each course. If they don’t manage the orders properly, it could lead to confusion and leave your guests feeling unsatisfied! The double free vulnerability occurs when the software attempts to free the same memory location twice. This can result in unpredictable behavior during policy checks when the X509_V_FLAG_POLICY_CHECK is enabled, making it easier for attackers to exploit the situation.

What to do

This vulnerability could allow attackers to disrupt the crucial policy checks, potentially leading to unexpected behaviors in the system. While the impact isn't specified, a failure in security checks can definitely spell trouble for any system relying on OpenSSL for secure communications. Upgrade to OpenSSL version 0.9.8s or later to mitigate this vulnerability. It's also a good idea to audit your environment for any configurations that may still enable this flag and ensure you're not leaving any gaps in your security posture. You've got this! With a quick update, you’ll keep your systems secure and running smoothly. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.16910 · 97.1th percentile
Published
2012-01-06T01:00Z
EPSS history
Timeline
  • 06 JAN 01:00Z
    Double free vulnerability in OpenSSL 0.9.8 before 0.9.8s, when X509_V_FLAG_POLICY_CHECK is enabled, allows remote attackers to have an unspecified impact by…
    cvelistv5