InspIRCd up to 2.0.5/2.0.16 on Debian Underflow memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability was found in InspIRCd up to 2.0.5/2.0.16 on Debian. It has been classified as critical. This affects an unknown part. Performing a manipulation results in memory corruption (Underflow). This vulnerability was named CVE-2015-6674. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in InspIRCd up to 2.0.5/2.0.16 on Debian. This affects an unknown code block. The manipulation with an unknown input leads to a memory corruption vulnerability (Underflow). 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 underflow vulnerability in the Debian inspircd package before 2.0.5-1+deb7u1 for wheezy and before 2.0.16-1 for jessie and sid. NOTE: This issue exists as an additional issue from an incomplete fix of CVE-2012-1836.

The bug was discovered 03/20/2015. The weakness was presented 04/13/2017 (Website). It is possible to read the advisory at debian.org. This vulnerability is uniquely identified as CVE-2015-6674 since 08/25/2015. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 26 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 82839 (Debian DSA-3226-1 : inspircd - 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.

Upgrading to version 2.0.5-1+deb7u1 or 2.0.16-1 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (82839) and SecurityFocus (BID 52561†). See VDB-99772 and VDB-107080 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.0
VulDB Meta Temp Score: 8.9

VulDB Base Score: 8.3
VulDB Temp Score: 7.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: Underflow
Class: Memory corruption / Underflow
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: 82839
Nessus Name: Debian DSA-3226-1 : inspircd - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 18627
OpenVAS Name: Gentoo Linux Local Check: https://security.gentoo.org/glsa/201512-13
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: InspIRCd 2.0.5-1+deb7u1/2.0.16-1

Timelineinfo

03/19/2012 🔍
03/20/2015 +1096 days 🔍
04/15/2015 +26 days 🔍
04/17/2015 +2 days 🔍
08/25/2015 +130 days 🔍
04/13/2017 +597 days 🔍
04/13/2017 +0 days 🔍
04/14/2017 +1 days 🔍
08/30/2020 +1234 days 🔍

Sourcesinfo

Advisory: debian.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-6674 (🔍)
GCVE (CVE): GCVE-0-2015-6674
GCVE (VulDB): GCVE-100-99783
SecurityFocus: 52561 - InspIRCd Heap Memory Corruption Vulnerability
OSVDB: - CVE-2015-6674 - Debian - Buffer Underflow Issue

See also: 🔍

Entryinfo

Created: 04/14/2017 10:54
Updated: 08/30/2020 16:00
Changes: 04/14/2017 10:54 (76), 08/30/2020 16:00 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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