PHP up to 4.4.4 malloc zip_read_entry integer coercion

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in PHP up to 4.4.4. It has been classified as critical. Affected by this vulnerability is the function zip_read_entry of the component malloc. The manipulation leads to integer coercion. This vulnerability is referenced as CVE-2007-1777. Furthermore, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in PHP up to 4.4.4 (Programming Language Software) and classified as critical. This issue affects the function zip_read_entry of the component malloc. The manipulation with an unknown input leads to a integer coercion vulnerability. Using CWE to declare the problem leads to CWE-192. Integer coercion refers to a set of flaws pertaining to the type casting, extension, or truncation of primitive data types. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Integer overflow in the zip_read_entry function in PHP 4 before 4.4.5 allows remote attackers to execute arbitrary code via a ZIP archive that contains an entry with a length value of 0xffffffff, which is incremented before use in an emalloc call, triggering a heap overflow.

The bug was discovered 03/27/2007. The weakness was published 03/29/2007 by Stefan Esser (Website). It is possible to read the advisory at debian.org. The identification of this vulnerability is CVE-2007-1777 since 03/29/2007. The exploitation is known to be easy. 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. The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 25099 (Debian DSA-1282-1 : php4 - several vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.

Upgrading to version 4.4.5 eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (33652), Exploit-DB (29788), Tenable (25099), SecurityFocus (BID 23169†) and OSVDB (33949†). Similar entries are available at VDB-35872, VDB-35694 and VDB-35446. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Integer coercion
CWE: CWE-192 / 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: 🔍

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Nessus ID: 25099
Nessus Name: Debian DSA-1282-1 : php4 - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 58334
OpenVAS Name: Debian Security Advisory DSA 1282-1 (php4)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: PHP 4.4.5

Timelineinfo

03/27/2007 🔍
03/27/2007 +0 days 🔍
03/27/2007 +0 days 🔍
03/29/2007 +2 days 🔍
03/29/2007 +0 days 🔍
03/29/2007 +0 days 🔍
04/10/2007 +12 days 🔍
04/26/2007 +16 days 🔍
04/30/2007 +4 days 🔍
04/30/2007 +0 days 🔍
03/13/2015 +2874 days 🔍
04/19/2025 +3690 days 🔍

Sourcesinfo

Product: php.org

Advisory: debian.org
Researcher: Stefan Esser
Status: Confirmed

CVE: CVE-2007-1777 (🔍)
GCVE (CVE): GCVE-0-2007-1777
GCVE (VulDB): GCVE-100-35915

OVAL: 🔍

X-Force: 33652
SecurityFocus: 23169 - PHP Zip_Entry_Read() Integer Overflow Vulnerability
Secunia: 25025 - Debian update for php4, Moderately Critical
OSVDB: 33949 - CVE-2007-1777 - PHP - Integer Overflow Issue
Vulnerability Center: 14778 - PHP zip_read_entry Function Integer Overflow via Malicious ZIP Archive, High

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

Entryinfo

Created: 03/13/2015 12:16
Updated: 04/19/2025 21:41
Changes: 03/13/2015 12:16 (83), 07/17/2019 12:50 (5), 04/19/2025 21:41 (19)
Complete: 🔍
Cache ID: 216:968:103

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