GNU libmicrohttpd up to 0.9.31 MHD_digest_auth_check memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in GNU libmicrohttpd. This impacts the function MHD_digest_auth_check. Such manipulation leads to memory corruption. This vulnerability is documented as CVE-2013-7039. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in GNU libmicrohttpd (Web Server). Affected by this issue is the function MHD_digest_auth_check. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Stack-based buffer overflow in the MHD_digest_auth_check function in libmicrohttpd before 0.9.32, when MHD_OPTION_CONNECTION_MEMORY_LIMIT is set to a large value, allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a long URI in an authentication header.

The weakness was released 12/13/2013 by Florian Weimer (Website). The advisory is shared for download at gnunet.org. This vulnerability is handled as CVE-2013-7039 since 12/09/2013. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 72254 (GLSA-201402-01 : GNU libmicrohttpd: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170070 (SUSE Enterprise Linux Security Update for libmicrohttpd (SUSE-SU-2017:1576-1)).

Upgrading to version 0.9.31 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (89615), Tenable (72254), SecurityFocus (BID 64138†), Secunia (SA55903†) and Vulnerability Center (SBV-43113†). Entry connected to this vulnerability is available at VDB-65755. Once again VulDB remains the best source 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: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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 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: 72254
Nessus Name: GLSA-201402-01 : GNU libmicrohttpd: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libmicrohttpd 0.9.31

Timelineinfo

12/03/2013 🔍
12/03/2013 +0 days 🔍
12/06/2013 +3 days 🔍
12/09/2013 +3 days 🔍
12/13/2013 +4 days 🔍
12/13/2013 +0 days 🔍
01/30/2014 +48 days 🔍
03/24/2015 +418 days 🔍
01/11/2022 +2485 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: gnunet.org
Researcher: Florian Weimer
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-7039 (🔍)
GCVE (CVE): GCVE-0-2013-7039
GCVE (VulDB): GCVE-100-65756
X-Force: 89615
SecurityFocus: 64138 - Libmicrohttpd Multiple Remote Security Vulnerabilities
Secunia: 55903 - libmicrohttpd Two Vulnerabilities, Moderately Critical
Vulnerability Center: 43113 - libmicrohttpd before 0.9.32 Remote DoS or Code Execution Vulnerability in MHD_digest_auth_check(), Medium

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 01/11/2022 20:55
Changes: 03/24/2015 15:54 (60), 05/20/2017 10:14 (13), 01/11/2022 20:55 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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