CVE-2015-5589: Input Validation

Q: What is the severity of CVE-2015-5589?

CVE-2015-5589 has a medium severity rating as it can lead to denial of service via a segmentation fault.

Q: How do I fix CVE-2015-5589?

To fix CVE-2015-5589, upgrade your PHP installation to version 5.4.43, 5.5.27, or 5.6.11 or later.

Q: What versions of PHP are affected by CVE-2015-5589?

CVE-2015-5589 affects PHP versions prior to 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11.

Q: Does CVE-2015-5589 allow for remote code execution?

No, CVE-2015-5589 does not allow for remote code execution but it can cause a denial of service.

Q: What specific function in PHP is vulnerable in CVE-2015-5589?

The vulnerable function in CVE-2015-5589 is phar_convert_to_other in the ext/phar/phar_object.c file.

Published May 16, 2016

Updated

The pharconverttoother function in ext/phar/pharobject.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 does not validate a file pointer before a close operation, which allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted TAR archive that is mishandled in a Phar::convertToData call.

Affected Software

59 affected components

PHP PHP=5.6.0-alpha1

PHP PHP=5.6.0-alpha2

PHP PHP=5.6.0-alpha3

PHP PHP=5.6.0-alpha4

PHP PHP=5.6.0-alpha5

PHP PHP=5.6.0-beta1

PHP PHP=5.6.0-beta2

PHP PHP=5.6.0-beta3

PHP PHP=5.6.0-beta4

PHP PHP=5.6.1

PHP PHP=5.6.2

PHP PHP=5.6.3

PHP PHP=5.6.4

PHP PHP=5.6.5

PHP PHP=5.6.6

PHP PHP=5.6.7

PHP PHP=5.6.8

PHP PHP=5.6.9

PHP PHP=5.6.10

PHP PHP=5.5.0

PHP PHP=5.5.0-alpha1

PHP PHP=5.5.0-alpha2

PHP PHP=5.5.0-alpha3

PHP PHP=5.5.0-alpha4

PHP PHP=5.5.0-alpha5

PHP PHP=5.5.0-alpha6

PHP PHP=5.5.0-beta1

PHP PHP=5.5.0-beta2

PHP PHP=5.5.0-beta3

PHP PHP=5.5.0-beta4

PHP PHP=5.5.0-rc1

PHP PHP=5.5.0-rc2

PHP PHP=5.5.1

PHP PHP=5.5.2

PHP PHP=5.5.3

PHP PHP=5.5.4

PHP PHP=5.5.5

PHP PHP=5.5.6

PHP PHP=5.5.7

PHP PHP=5.5.8

PHP PHP=5.5.9

PHP PHP=5.5.10

PHP PHP=5.5.11

PHP PHP=5.5.12

PHP PHP=5.5.13

PHP PHP=5.5.14

PHP PHP=5.5.15

PHP PHP=5.5.16

PHP PHP=5.5.17

PHP PHP=5.5.18

PHP PHP=5.5.19

PHP PHP=5.5.20

PHP PHP=5.5.21

PHP PHP=5.5.22

PHP PHP=5.5.23

PHP PHP=5.5.24

PHP PHP=5.5.25

PHP PHP=5.5.26

PHP PHP<=5.4.42

Event History

May 16, 2016

CVE Published

via MITRE·10:00 AM

Data Sourced

via MITRE·10:00 AM

Description

Frequently Asked Questions

What is the severity of CVE-2015-5589?

CVE-2015-5589 has a medium severity rating as it can lead to denial of service via a segmentation fault.

How do I fix CVE-2015-5589?

To fix CVE-2015-5589, upgrade your PHP installation to version 5.4.43, 5.5.27, or 5.6.11 or later.

What versions of PHP are affected by CVE-2015-5589?