PHP up to 5.2.2 chunk_split numeric error

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6.6	$0-$5k	0.00

Summaryinfo

A vulnerability was found in PHP. It has been classified as problematic. This affects the function chunk_split. The manipulation leads to numeric error. This vulnerability is listed as CVE-2007-2872. In addition, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in PHP (Programming Language Software) and classified as critical. This issue affects the function chunk_split. The manipulation with an unknown input leads to a numeric error vulnerability. Using CWE to declare the problem leads to CWE-189. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Multiple integer overflows in the chunk_split function in PHP 5 before 5.2.3 and PHP 4 before 4.4.8 allow remote attackers to cause a denial of service (crash) or execute arbitrary code via the (1) chunks, (2) srclen, and (3) chunklen arguments.

The weakness was presented 01/03/2008 by Gerhard Wagner (Website). The advisory is shared at php.net. The identification of this vulnerability is CVE-2007-2872 since 05/29/2007. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

The exploit is available at securityfocus.com. 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 26038 (FreeBSD : php -- multiple vulnerabilities (71d903fc-602d-11dc-898c-001921ab2fa4)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165666 (SUSE Enterprise Linux Security Update php4, php5 (SUSE-SA:2008:004)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at php.net. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (39398), Exploit-DB (30117), Tenable (26038), SecurityFocus (BID 24261†) and OSVDB (36083†). See VDB-3287, VDB-3284, VDB-3285 and VDB-3282 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Programming Language Software

Name

• PHP

Version

• 4.4.7
• 5.0.0
• 5.0.1
• 5.0.2
• 5.0.3
• 5.0.4
• 5.0.5
• 5.1
• 5.1.0
• 5.1.1
• 5.1.2
• 5.1.3
• 5.1.4
• 5.1.5
• 5.1.6
• 5.2.0
• 5.2.1
• 5.2.2

License

• open-source

Website

• Product: https://www.php.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 26038
Nessus Name: FreeBSD : php -- multiple vulnerabilities (71d903fc-602d-11dc-898c-001921ab2fa4)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 58309
OpenVAS Name: Slackware Advisory SSA:2007-152-01 php5
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: php.net

Timelineinfo

05/29/2007 🔍
05/31/2007 +2 days 🔍
06/01/2007 +1 days 🔍
06/04/2007 +2 days 🔍
06/04/2007 +0 days 🔍
09/11/2007 +99 days 🔍
09/14/2007 +3 days 🔍
01/03/2008 +111 days 🔍
01/21/2008 +18 days 🔍
05/06/2008 +106 days 🔍
04/19/2025 +6192 days 🔍

Sourcesinfo

Product: php.org

Advisory: php.net
Researcher: Gerhard Wagner
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-2872 (🔍)
GCVE (CVE): GCVE-0-2007-2872
GCVE (VulDB): GCVE-100-3533

OVAL: 🔍

X-Force: 39398 - PHP chunk_split() security bypass, Medium Risk
SecurityFocus: 24261 - PHP Chunk_Split() Function Integer Overflow Vulnerability
Secunia: 30040 - HP-UX update for Apache with PHP, Moderately Critical
OSVDB: 36083 - PHP chunk_split Function Multiple Argument Overflows
SecurityTracker: 1018186
Vupen: ADV-2008-0398

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 01/21/2008 15:07
Updated: 04/19/2025 22:42
Changes: 01/21/2008 15:07 (95), 04/28/2019 08:35 (2), 04/19/2025 22:42 (22)
Complete: 🔍
Cache ID: 216::103

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