CVE-2015-2515 - Use After Free

Severity

93%

Complexity

86%

Confidentiality

165%

CWE-416: Use After Free

Use-after-free vulnerability in Windows Shell in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 allows remote attackers to execute arbitrary code via a crafted toolbar object, aka "Toolbar Use After Free Vulnerability."

CWE-416: Use After Free

CVSS 2.0 Base Score 9.3. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:C/I:C/A:C).

Demo Examples

Use After Free

CWE-416

The following example demonstrates the weakness.


               
}
free(buf3R2);

Use After Free

CWE-416

The following code illustrates a use after free error:


               
}
free(ptr);
logError("operation aborted before commit", ptr);

When an error occurs, the pointer is immediately freed. However, this pointer is later incorrectly used in the logError function.

Overview

Type

Microsoft Windows

First reported 9 years ago

2015-10-14 01:59:00

Last updated 5 years ago

2019-05-16 17:00:00

Affected Software

Microsoft Windows RT

Microsoft Windows RT 8.1

Microsoft Windows Server 2008 Service Pack 2

Microsoft Windows Server 2012

Microsoft Windows Vista Service Pack 2

References

1033799

Third Party Advisory, VDB Entry

MS15-109

Patch, Vendor Advisory

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