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PHP Heap-based buffer overflow in 'mbstring' extension

Information

Severity

Severity

Critical

Family

Family

Buffer overflow

CVSSv2 Base

CVSSv2 Base

10.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

13 years ago

Modified

Modified

3 years ago

Summary

The host is running PHP and is prone to Buffer Overflow vulnerability.

Insight

Insight

The flaw is due to error in mbfilter_htmlent.c file in the mbstring extension. These can be exploited via mb_convert_encoding, mb_check_encoding, mb_convert_variables, and mb_parse_str functions.

Affected Software

Affected Software

PHP version 4.3.0 to 5.2.6 on all running platform.

Solution

Solution

Upgrade to version 5.2.7 or later.

Common Vulnerabilities and Exposures (CVE)