CVE-2009-1138

Description

The LDAP service in Active Directory on Microsoft Windows 2000 SP4 does not properly free memory for LDAP and LDAPS requests, which allows remote attackers to execute arbitrary code via a request that uses hexadecimal encoding, whose associated memory is not released, related to a "DN AttributeValue," aka "Active Directory Invalid Free Vulnerability." NOTE: this issue is probably a memory leak.

Category

10.0
CVSS
Severity: Critical
CVSS 2.0 •
EPSS 60.40% Top 5%
Vendor Advisory microsoft.com Vendor Advisory secunia.com Vendor Advisory vupen.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/35226 patch vdb entry
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=804 third party advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6180 signature vdb entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-018 vendor advisory
http://support.avaya.com/elmodocs2/security/ASA-2009-214.htm
http://www.securitytracker.com/id?1022349 vdb entry
http://www.vupen.com/english/advisories/2009/1537 patch vendor advisory vdb entry
http://www.us-cert.gov/cas/techalerts/TA09-160A.html third party advisory us government resource
http://secunia.com/advisories/35355 third party advisory vendor advisory
http://osvdb.org/54937 vdb entry

Frequently Asked Questions

What is the severity of CVE-2009-1138?
CVE-2009-1138 has been scored as a critical severity vulnerability.
How to fix CVE-2009-1138?
To fix CVE-2009-1138, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2009-1138 being actively exploited in the wild?
It is possible that CVE-2009-1138 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~60% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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