CVE-2011-3414
The CaseInsensitiveHashProvider.getHashCode function in the HashTable implementation in the ASP.NET subsystem in Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5 SP1, 3.5.1, and 4.0 computes hash values for form parameters without restricting the ability…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 57.7%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
The CaseInsensitiveHashProvider.getHashCode function in the HashTable implementation in the ASP.NET subsystem in Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5 SP1, 3.5.1, and 4.0 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters, aka "Collisions in HashTable May Cause DoS Vulnerability."
- CVSS 2.0
- 7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 57.69% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- microsoft/windows 7 · microsoft/windows server 2003 · microsoft/windows server 2008 · microsoft/windows vista · microsoft/windows xp
- Source
- secure@microsoft.com
References
- http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html
- http://www.kb.cert.org/vuls/id/903934US Government Resource
- http://www.nruns.com/_downloads/advisory28122011.pdf
- http://www.ocert.org/advisories/ocert-2011-003.html
- http://www.us-cert.gov/cas/techalerts/TA11-347A.htmlUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-100
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14588
- http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html
- http://www.kb.cert.org/vuls/id/903934US Government Resource
- http://www.nruns.com/_downloads/advisory28122011.pdf
- http://www.ocert.org/advisories/ocert-2011-003.html
- http://www.us-cert.gov/cas/techalerts/TA11-347A.htmlUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-100
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14588
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.