irssi up to 1.0.6/1.1.0 Nick Empty null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in irssi up to 1.0.6/1.1.0. It has been classified as problematic. This affects an unknown part of the component Nick Handler. The manipulation as part of Empty leads to null pointer dereference. This vulnerability is traded as CVE-2018-7050. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in irssi up to 1.0.6/1.1.0 (Messaging Software). It has been rated as problematic. This issue affects an unknown code block of the component Nick Handler. The manipulation as part of a Empty leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. The summary by CVE is:

An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. A NULL pointer dereference occurs for an "empty" nick.

The bug was discovered 02/15/2018. The weakness was shared 02/15/2018 (oss-sec). The advisory is shared at openwall.com. The identification of this vulnerability is CVE-2018-7050 since 02/15/2018. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 107008 (Fedora 27 : irssi (2018-433d2dc3c7)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176343 (Debian Security Update for irssi (DSA 4162-1)).

Upgrading to version 1.0.7 or 1.1.1 eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (107008). The entries VDB-113490, VDB-113491, VDB-113492 and VDB-113493 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: Null pointer dereference
CWE: CWE-476 / 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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Nessus ID: 107008
Nessus Name: Fedora 27 : irssi (2018-433d2dc3c7)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 840674
OpenVAS Name: Fedora Update for irssi FEDORA-2018-cbc52e8812
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: 🔍

Upgrade: irssi 1.0.7/1.1.1

Timelineinfo

02/15/2018 🔍
02/15/2018 +0 days 🔍
02/15/2018 +0 days 🔍
02/15/2018 +0 days 🔍
02/16/2018 +1 days 🔍
02/26/2018 +10 days 🔍
02/27/2018 +1 days 🔍
02/08/2023 +1807 days 🔍

Sourcesinfo

Advisory: FEDORA-2018-433d2dc3c7
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-7050 (🔍)
GCVE (CVE): GCVE-0-2018-7050
GCVE (VulDB): GCVE-100-113489

OVAL: 🔍
See also: 🔍

Entryinfo

Created: 02/16/2018 13:00
Updated: 02/08/2023 10:06
Changes: 02/16/2018 13:00 (75), 01/06/2020 13:55 (3), 02/08/2023 10:02 (4), 02/08/2023 10:06 (1)
Complete: 🔍
Cache ID: 216::103

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

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