dhcpcd 3.2.3 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in dhcpcd 3.2.3. The impacted element is an unknown function. The manipulation results in memory corruption. This vulnerability is identified as CVE-2012-6700. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in dhcpcd 3.2.3. Affected is an unknown functionality. 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. CVE summarizes:

The decode_search function in dhcp.c in dhcpcd 3.x does not properly free allocated memory, which allows remote DHCP servers to cause a denial of service via a crafted response.

The weakness was released 12/01/2015 by Guido Vranken as confirmed mailinglist post (oss-sec). The advisory is shared for download at seclists.org. This vulnerability is traded as CVE-2012-6700 since 12/03/2015. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 87267 (Debian DLA-362-1 : dhcpcd security update), 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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175689 (Debian Security Update for dhcpcd (DSA 3534-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 1 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (108513), Tenable (87267), SecurityFocus (BID 85777†) and Vulnerability Center (SBV-58173†). Entries connected to this vulnerability are available at VDB-79414 and VDB-79415. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

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: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 87267
Nessus Name: Debian DLA-362-1 : dhcpcd security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703534
OpenVAS Name: Debian Security Advisory DSA 3534-1 (dhcpcd - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

12/01/2015 🔍
12/03/2015 +2 days 🔍
12/04/2015 +1 days 🔍
12/08/2015 +4 days 🔍
12/09/2015 +1 days 🔍
12/09/2015 +0 days 🔍
03/29/2016 +111 days 🔍
04/11/2016 +12 days 🔍
04/14/2016 +3 days 🔍
02/04/2019 +1026 days 🔍

Sourcesinfo

Advisory: seclists.org
Researcher: Guido Vranken
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-6700 (🔍)
GCVE (CVE): GCVE-0-2012-6700
GCVE (VulDB): GCVE-100-79416

OVAL: 🔍

X-Force: 108513 - dhcpcd code execution
SecurityFocus: 85777 - dhcpcd CVE-2012-6700 Denial of Service Vulnerability
Vulnerability Center: 58173 - dhcpcd 3 Remote DoS via a Crafted Response by the decode_search Function - CVE-2012-6700, Medium

See also: 🔍

Entryinfo

Created: 12/04/2015 10:18
Updated: 02/04/2019 14:40
Changes: 12/04/2015 10:18 (76), 02/04/2019 14:40 (13)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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