WeeChat up to 2.7.0 IRC Message buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

A vulnerability classified as critical has been found in WeeChat up to 2.7.0 (Chat Software). This affects an unknown code block. The manipulation as part of a IRC Message leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in WeeChat before 2.7.1 (0.3.4 to 2.7 are affected). When a new IRC message 005 is received with longer nick prefixes, a buffer overflow and possibly a crash can happen when a new mode is set for a nick.

The weakness was presented 03/23/2020. This vulnerability is uniquely identified as CVE-2020-9760 since 03/02/2020. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

Upgrading to version 2.7.1 eliminates this vulnerability.

See 152072 for similar entry.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: WeeChat 2.7.1

Timelineinfo

03/02/2020 🔍
03/23/2020 +21 days 🔍
03/24/2020 +1 days 🔍
03/24/2020 +0 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2020-9760 (🔍)
See also: 🔍

Entryinfo

Created: 03/24/2020 11:25
Updated: 03/24/2020 11:30
Changes: 03/24/2020 11:25 (37), 03/24/2020 11:30 (18)
Complete: 🔍

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