pecl_http up to 3.0.0 URL Parser memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in pecl_http up to 3.0.0. This impacts an unknown function of the component URL Parser. Performing a manipulation results in memory corruption. This vulnerability is identified as CVE-2016-5873. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in pecl_http up to 3.0.0. This affects an unknown code of the component URL Parser. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in the HTTP URL parsing functions in pecl_http before 3.0.1 might allow remote attackers to execute arbitrary code via non-printable characters in a URL.

The bug was discovered 06/29/2016. The weakness was released 01/23/2017 with Shell (Website). The advisory is shared at openwall.com. This vulnerability is uniquely identified as CVE-2016-5873 since 06/29/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 161 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 95603 (GLSA-201612-17 : PECL HTTP: Remote execution of arbitrary code), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l.

Upgrading to version 3.0.1 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (95603) and SecurityFocus (BID 95863†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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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Nessus ID: 95603
Nessus Name: GLSA-201612-17 : PECL HTTP: Remote execution of arbitrary code
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: pecl_http 3.0.1
Patch: github.com

Timelineinfo

06/29/2016 🔍
06/29/2016 +0 days 🔍
12/07/2016 +161 days 🔍
12/07/2016 +0 days 🔍
01/23/2017 +47 days 🔍
01/23/2017 +0 days 🔍
01/24/2017 +1 days 🔍
01/25/2017 +1 days 🔍
05/14/2026 +3396 days 🔍

Sourcesinfo

Advisory: 71719
Organization: Shell
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-5873 (🔍)
GCVE (CVE): GCVE-0-2016-5873
GCVE (VulDB): GCVE-100-95841
SecurityFocus: 95863 - pecl_http CVE-2016-5873 Buffer Overflow Vulnerability
OSVDB: - CVE-2016-5873 - pecl_http - Buffer Overflow Issue

Entryinfo

Created: 01/24/2017 08:32
Updated: 05/14/2026 14:51
Changes: 01/24/2017 08:32 (65), 07/30/2020 16:27 (8), 11/03/2022 09:26 (4), 05/14/2026 14:51 (17)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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