WeeChat up to 2.7.0 Message null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability was found in WeeChat up to 2.7.0 and classified as problematic. This affects an unknown function. Such manipulation as part of Message leads to null pointer dereference. This vulnerability is uniquely identified as CVE-2020-9759. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in WeeChat up to 2.7.0 (Chat Software). It has been rated as problematic. Affected by this issue is an unknown code. The manipulation as part of a Message 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. CVE summarizes:

An issue was discovered in WeeChat before 2.7.1 (0.4.0 to 2.7 are affected). A malformed message 352 (who) can cause a NULL pointer dereference in the callback function, resulting in a crash.

The weakness was disclosed 03/23/2020. This vulnerability is handled as CVE-2020-9759 since 03/02/2020. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 2.7.1 eliminates this vulnerability.

The entry VDB-152073 is pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 4.6
CNA Vector (MITRE): 🔍

CVSSv2info

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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: Partially
Local: Yes
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
Patch: github.com

Timelineinfo

03/02/2020 🔍
03/23/2020 +21 days 🔍
03/24/2020 +1 days 🔍
05/11/2024 +1509 days 🔍

Sourcesinfo

Product: github.com

Status: Not defined

CVE: CVE-2020-9759 (🔍)
GCVE (CVE): GCVE-0-2020-9759
GCVE (VulDB): GCVE-100-152072
See also: 🔍

Entryinfo

Created: 03/24/2020 11:25
Updated: 05/11/2024 08:19
Changes: 03/24/2020 11:25 (37), 03/24/2020 11:30 (18), 05/11/2024 08:14 (18), 05/11/2024 08:19 (14)
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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