PHP up to 5.5.33/5.6.19/7.0.4 rawurlencode ext/standard/url.c php_raw_url_encode denial of service ⚔ [Disputed]

Summaryinfo

A vulnerability classified as problematic was found in PHP up to 5.5.33/5.6.19/7.0.4. This vulnerability affects the function php_raw_url_encode of the file ext/standard/url.c of the component rawurlencode Handler. The manipulation results in denial of service. This vulnerability is reported as CVE-2016-4070. The attack can be launched remotely. No exploit exists. It is still unclear if this vulnerability genuinely exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic has been found in PHP up to 5.5.33/5.6.19/7.0.4. Affected is the function php_raw_url_encode of the file ext/standard/url.c of the component rawurlencode Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability.

The advisory is available at bugs.php.net. This vulnerability is traded as CVE-2016-4070. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

The real existence of this vulnerability is still doubted at the moment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169006 (SUSE Enterprise Linux Security Update for php53 (SUSE-SU-2016:1638-1)).

Upgrading to version 5.5.34, 5.6.20 or 7.0.5 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.php.net. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Programming Language Software

Name

• PHP

Version

• 5.5.0
• 5.5.1
• 5.5.2
• 5.5.3
• 5.5.4
• 5.5.5
• 5.5.6
• 5.5.7
• 5.5.8
• 5.5.9
• 5.5.10
• 5.5.11
• 5.5.12
• 5.5.13
• 5.5.14
• 5.5.15
• 5.5.16
• 5.5.17
• 5.5.18
• 5.5.19
• 5.5.20
• 5.5.21
• 5.5.22
• 5.5.23
• 5.5.24
• 5.5.25
• 5.5.26
• 5.5.27
• 5.5.28
• 5.5.29
• 5.5.30
• 5.5.31
• 5.5.32
• 5.5.33
• 5.6.0
• 5.6.1
• 5.6.2
• 5.6.3
• 5.6.4
• 5.6.5
• 5.6.6
• 5.6.7
• 5.6.8
• 5.6.9
• 5.6.10
• 5.6.11
• 5.6.12
• 5.6.13
• 5.6.14
• 5.6.15
• 5.6.16
• 5.6.17
• 5.6.18
• 5.6.19
• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4

License

• open-source

Website

• Product: https://www.php.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion