CVE-2020-8444

In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to a use-after-free during processing of…

published January 30, 2020

CVSS
—
EPSS
2%
Percentile
84.5
In the wild
Unconfirmed
What it is

⚠️ A use-after-free vulnerability lurks in OSSEC-HIDS, affecting versions 2.7 through 3.5.0 — it's like a chef trying to use a well-loved recipe after the most important ingredient has spilled everywhere! Think of it like an assembly line where a worker tries to pick up a tool that has already been misplaced. The confusion can lead to a major halt, just as this flaw can disrupt log processing when the system tries to access memory that’s already freed up. An attacker could exploit this vulnerability to potentially crash the analysis server or manipulate the processing queue. While it’s not known to be exploited yet, the chaos it can unleash makes it concerning. Imagine all that precious log data going haywire!

Put simply

Think of it like an assembly line where a worker tries to pick up a tool that has already been misplaced. The confusion can lead to a major halt, just as this flaw can disrupt log processing when the system tries to access memory that’s already freed up. This use-after-free flaw occurs in the ossec-analysisd component when it incorrectly handles alerts from authenticated remote agents. It results in accessing freed memory, which can lead to crashes or unpredictable behavior.

What to do

An attacker could exploit this vulnerability to potentially crash the analysis server or manipulate the processing queue. While it’s not known to be exploited yet, the chaos it can unleash makes it concerning. Imagine all that precious log data going haywire! Update your OSSEC-HIDS to the latest version available to ensure this vulnerability is patched. Regularly monitor the release notes for any updates and consider implementing additional logging to detect anomalies during log analysis. You've got this! Stay proactive, and let's keep those logs safe and sound! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02489 · 84.5th percentile
Published
2020-01-30T00:33Z
EPSS history
Timeline
  • 30 JAN 00:33Z
    In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to a use-after-free during processing of…
    cvelistv5