CVE-2011-2334 - Use After Free

Severity

65%

Complexity

27%

Confidentiality

60%

Use after free vulnerability exists in WebKit in Google Chrome before Blink M12 in RenderLayerwhen removing elements with reflections.

Use after free vulnerability exists in WebKit in Google Chrome before Blink M12 in RenderLayerwhen removing elements with reflections.

CVSS 3.1 Base Score 6.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H).

CVSS 2.0 Base Score 4.3. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:P).

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

First reported 5 years ago

2019-11-12 21:15:00

Last updated 5 years ago

2019-11-14 19:52:00

Affected Software

Google Blink for Chromium

chromium

References

http://trac.webkit.org/changeset/86005

Mailing List, Patch, Vendor Advisory

https://bugs.chromium.org/p/chromium/issues/detail?id=81348

Exploit, Issue Tracking, Mailing List, Vendor Advisory

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