PHP 5.5.x < 5.5.35, 5.6.x < 5.6.21, 7.x < 7.0.6 Multiple Vulnerabilities

high Log Correlation Engine Plugin ID 802031
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Synopsis

The specific version of PHP that the system is running is reportedly affected by multiple vulnerabilities.

Description

The specific version of PHP that the system is running is reportedly affected by the following vulnerabilities:

- PHP contains an out-of-bounds read flaw in ext/intl/grapheme/grapheme_string.c that is triggered when handling negative offsets in zif_grapheme_stripos. This may allow a remote attacker to crash a process utilizing the language or potentially disclose memory contents. (CVE-2016-4540)

- PHP contains an out-of-bounds read flaw in the php_str2num() function in ext/bcmath/bcmath.c that is triggered when accepting negative scales. This may allow a remote attacker to crash a process utilizing the language or potentially disclose memory contents. (CVE-2016-4537)

- PHP contains an out-of-bounds read flaw in the exif_read_data() function in ext/exif/exif.c that is triggered when handling exif headers. This may allow a remote attacker to crash a process utilizing the language or potentially disclose memory contents. (CVE-2016-4542)

- PHP contains a flaw in the xml_parse_into_struct() function in ext/xml/xml.c that is triggered during the handling of a specially crafted XML content. This may allow a remote attacker to cause a denial of service. (CVE-2016-4539)

Solution

Upgrade to PHP 5.5.35, 5.6.21, 7.0.6 or higher.

See Also

http://php.net/ChangeLog-5.php#5.6.21

http://php.net/ChangeLog-7.php#7.0.6

https://bugs.php.net/bug.php?id=72061

https://bugs.php.net/bug.php?id=72093

https://bugs.php.net/bug.php?id=72099

http://php.net/ChangeLog-5.php#5.5.35

Plugin Details

Severity: High

ID: 802031

Family: Web Servers

Published: 11/1/2016

Updated: 11/1/2016

Risk Information

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.2

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

Vulnerability Information

Patch Publication Date: 4/28/2016

Vulnerability Publication Date: 4/26/2016

Reference Information

CVE: CVE-2016-4537, CVE-2016-4539, CVE-2016-4540, CVE-2016-4542