irssi up to 1.0.3 Nick List Update use after free

CVSS Meta Temp Score
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CTI Interest Score
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8.1$0-$5k0.00

Summaryinfo

A vulnerability was found in irssi up to 1.0.3. It has been declared as critical. This affects an unknown function of the component Nick List Update Handler. Such manipulation leads to use after free. This vulnerability is listed as CVE-2017-10966. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in irssi up to 1.0.3 (Messaging Software) and classified as critical. Affected by this issue is some unknown processing of the component Nick List Update Handler. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in Irssi before 1.0.4. While updating the internal nick list, Irssi could incorrectly use the GHashTable interface and free the nick while updating it. This would then result in use-after-free conditions on each access of the hash table.

The bug was discovered 07/07/2017. The weakness was presented 07/07/2017 (GitHub Repository). The advisory is available at github.com. This vulnerability is handled as CVE-2017-10966 since 07/05/2017. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 101825 (Fedora 26 : irssi (2017-114e1abf9d)), 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 170191 (OpenSUSE Security Update for irssi (openSUSE-SU-2017:1823-1)).

Upgrading to version 1.0.4 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 (101825). See VDB-103297 for similar entry. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.1

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
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: Use after free
CWE: CWE-416 / 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: 101825
Nessus Name: Fedora 26 : irssi (2017-114e1abf9d)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for irssi FEDORA-2017-114e1abf9d
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 1.0.4
Patch: github.com

Timelineinfo

07/05/2017 🔍
07/07/2017 +2 days 🔍
07/07/2017 +0 days 🔍
07/07/2017 +0 days 🔍
07/08/2017 +1 days 🔍
07/19/2017 +11 days 🔍
07/20/2017 +1 days 🔍
12/12/2022 +1971 days 🔍

Sourcesinfo

Product: github.com

Advisory: FEDORA-2017-114e1abf9d
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-10966 (🔍)
GCVE (CVE): GCVE-0-2017-10966
GCVE (VulDB): GCVE-100-103298

OVAL: 🔍
See also: 🔍

Entryinfo

Created: 07/08/2017 16:54
Updated: 12/12/2022 08:23
Changes: 07/08/2017 16:54 (75), 10/24/2019 07:00 (3), 12/12/2022 08:20 (5), 12/12/2022 08:23 (1)
Complete: 🔍
Cache ID: 216::103

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