CVE-2009-2511 Integer overflow in n/a

What is CVE-2009-2511?

CVE-2009-2511 is a high-severity vulnerability in Microsoft Windows 2000, published on 14 Oct 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Integer overflow in the CryptoAPI component in Microsoft Windows 2000 SP4, Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 allows man-in-the-middle attackers to spoof arbitrary SSL servers and other entities via an X.509 certificate that has a malformed ASN.1 Object Identifier (OID) and was issued by a legitimate Certification Authority, aka "Integer Overflow in X.509 Object Identifiers Vulnerability."

Weakness: CWE-189

Which versions are affected by CVE-2009-2511?

It affects 6 products.

Products include Microsoft Windows 2000, Microsoft Windows 7, Microsoft Windows Server 2003, Microsoft Windows Server 2008, Microsoft Windows Vista, Microsoft Windows Xp.

How do I fix CVE-2009-2511?

No fix has been published for CVE-2009-2511 yet. Limit exposure of the affected software until one is available.

Is CVE-2009-2511 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-2511 exists.

Public exploit code: 1 Exploit-DB entry.

Other vulnerabilities in Microsoft Windows 2000

• CVE-2008-4250 Microsoft Windows Buffer Overflow Exploited Critical 9.8
• CVE-2010-0232 Microsoft Windows Kernel Exception Handler Exploited High 7.8
• CVE-2009-1123 Microsoft Windows Improper Input Validation Exploited High 7.8
• CVE-2002-0367 Microsoft Windows Privilege Escalation Exploited High 7.8
• CVE-2010-0269 Memory corruption in n/a Critical 10.0

All Microsoft Windows 2000 vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-f8c8-v22w-8vv8.