Omnicron OmniHTTPD up to 2.0.8 PHP Script memory allocation

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Omnicron OmniHTTPD 2.0.4/2.0.5/2.0.6/2.0.7/2.0.8. The affected element is an unknown function of the component PHP Script Handler. Such manipulation leads to memory allocation. This vulnerability is referenced as CVE-2001-0777. No exploit is available. Restrictive firewalling should be applied.

Detailsinfo

A vulnerability was found in Omnicron OmniHTTPD 2.0.4/2.0.5/2.0.6/2.0.7/2.0.8 (Web Server). It has been rated as problematic. Affected by this issue is an unknown code block of the component PHP Script Handler. The manipulation with an unknown input leads to a memory allocation vulnerability. Using CWE to declare the problem leads to CWE-789. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. Impacted is availability. CVE summarizes:

Omnicron OmniHTTPd 2.0.8 allows remote attackers to cause a denial of service (memory exhaustion) via a series of requests for PHP scripts.

The weakness was published 10/18/2001 (Website). The advisory is shared for download at archives.neohapsis.com. This vulnerability is handled as CVE-2001-0777. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 86153 (Omnicron OmniHTTPD PHP Denial of Service Vulnerability).

Addressing this vulnerability is possible by firewalling .

The vulnerability is also documented in the databases at X-Force (6620), SecurityFocus (BID 2783†) and Vulnerability Center (SBV-3127†). Similar entry is available at VDB-17541. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory allocation
CWE: CWE-789 / CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/26/2001 🔍
05/26/2001 +0 days 🔍
10/18/2001 +145 days 🔍
10/18/2001 +0 days 🔍
12/10/2003 +783 days 🔍
07/09/2014 +3864 days 🔍
10/04/2025 +4105 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Status: Not defined

CVE: CVE-2001-0777 (🔍)
GCVE (CVE): GCVE-0-2001-0777
GCVE (VulDB): GCVE-100-17540
X-Force: 6620
SecurityFocus: 2783 - Omnicron OmniHTTPD PHP Denial of Service Vulnerability
Vulnerability Center: 3127 - Omnicron OmniHTTPd 2.0.8 DoS, High

See also: 🔍

Entryinfo

Created: 07/09/2014 17:39
Updated: 10/04/2025 14:47
Changes: 07/09/2014 17:39 (56), 05/17/2019 18:50 (3), 10/04/2025 14:47 (18)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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