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CVE

CVE-2006-6696

Double free vulnerability in Microsoft Windows 2000, XP, 2003, and Vista allows local users to gain privileges by callin

Double free vulnerability in Microsoft Windows 2000, XP, 2003, and Vista allows local users to gain privileges by calling the MessageBox function with a MB_SERVICE_NOTIFICATION message with crafted data, which sends a HardError message to Client/Server Runtime Server Subsystem (CSRSS) process, which is not properly handled when invoking the UserHardError and GetHardErrorText functions in WINSRV.DLL.

MEDIUM · CVSS 6.9 EPSS 0.05383
Schedule remediation
  • EPSS percentile: top 10% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

4
microsoft windows 2000all versions
microsoft windows 2003 serverall versions
microsoft windows vistaall versions
microsoft windows xpall versions
⚠

Public Exploits & PoCs

2
localMicrosoft Windows - NtRaiseHardError 'Csrss.exe' Memory Disclosureverified
dosMicrosoft Windows - 'MessageBox' Memory Corruption Local Denial of Serviceverified
▣

Scoring & Timeline

6.9
MEDIUM · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:L/AC:M/Au:N/C:C/I:C/A:C
Published to NVD22 Dec 2006 · 02:28 AM
🔗

References & Sources

23
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://blogs.technet.com/msrc/archive/2006/12/22/new-report-of-a-windows-vulnerability.aspx
http://groups.google.ca/group/microsoft.public.win32.programmer.kernel/browse_thread/thread/c5946bf40f227058/7bd7b5d66a4e5aff
http://isc.sans.org/diary.php?n&storyid=1965
http://lists.grok.org.uk/pipermail/full-disclosure/2006-December/051394.html
http://research.eeye.com/html/alerts/zeroday/20061215.html
http://secunia.com/advisories/23448Vendor Advisory
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