PHP up to 5.5.0 RC1 User Input Sanitizer SndToJewish numeric error

CVSS Meta Temp Score
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9.0$0-$5k0.00

A vulnerability, which was classified as critical, was found in PHP up to 5.5.0 RC1 (Programming Language Software). This affects the function SndToJewish of the component User Input Sanitizer. The manipulation with an unknown input leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Integer overflow in the SdnToJewish function in jewish.c in the Calendar component in PHP before 5.3.26 and 5.4.x before 5.4.16 allows context-dependent attackers to cause a denial of service (application hang) via a large argument to the jdtojewish function.

The weakness was released 05/22/2013 as not defined advisory (Website). The advisory is shared at bugs.php.net. This vulnerability is uniquely identified as CVE-2013-4635 since 06/21/2013. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

After immediately, there has been an exploit disclosed. The exploit is shared for download at bugs.php.net. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 68918 (FreeBSD : PHP5 -- Integer overflow in Calendar module (5def3175-f3f9-4476-ba40-b46627cc638c)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166451 (OpenSuSE Security Update for php5 (openSUSE-SU-2013:1244-1)).

Upgrading to version 5.5.0 RC2 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. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 14007.

The vulnerability is also documented in the databases at X-Force (85161) and Tenable (68918). Entries connected to this vulnerability are available at 3695, 5786, 5794 and 7893.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
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CVSSv2info

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Exploitinginfo

Class: Numeric error
CWE: CWE-189
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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Nessus ID: 68918
Nessus Name: FreeBSD : PHP5 -- Integer overflow in Calendar module (5def3175-f3f9-4476-ba40-b46627cc638c)
Nessus File: 🔍
Nessus Risk: 🔍
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Nessus Port: 🔍

OpenVAS ID: 803678
OpenVAS Name: PHP Multiple Vulnerabilities - June13 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Upgrade: PHP 5.5.0 RC2
Patch: git.php.net
TippingPoint: 🔍

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Timelineinfo

05/22/2013 🔍
05/22/2013 +0 days 🔍
05/22/2013 +0 days 🔍
06/06/2013 +15 days 🔍
06/06/2013 +0 days 🔍
06/07/2013 +1 days 🔍
06/21/2013 +14 days 🔍
06/21/2013 +0 days 🔍
07/17/2013 +26 days 🔍
07/24/2013 +7 days 🔍
07/25/2013 +1 days 🔍
05/14/2021 +2850 days 🔍

Sourcesinfo

Product: php.org

Advisory: bugs.php.net
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-4635 (🔍)
OVAL: 🔍

X-Force: 85161
SecurityTracker: 1028699
Vulnerability Center: 40693 - PHP before 5.3.26 and 5.4.0 - 5.4.15 Remote DoS Vulnerability in Calendar Component, Medium
SecurityFocus: 60731 - PHP Calendar Extension 'SndToJewish()' Remote Denial of Service Vulnerability
Secunia: 54070 - SUSE update for php5, Moderately Critical
OSVDB: 93968

See also: 🔍

Entryinfo

Created: 06/07/2013 18:09
Updated: 05/14/2021 13:28
Changes: 06/07/2013 18:09 (80), 05/06/2017 19:37 (12), 05/14/2021 13:23 (2), 05/14/2021 13:28 (1)
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