cve/2023/CVE-2023-4641.md

### [CVE-2023-4641](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4641)
![](https://img.shields.io/static/v1?label=Product&message=Red%20Hat%20Enterprise%20Linux%206&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Red%20Hat%20Enterprise%20Linux%207&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Red%20Hat%20Enterprise%20Linux%208&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Red%20Hat%20Enterprise%20Linux%208.6%20Extended%20Update%20Support&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Red%20Hat%20Enterprise%20Linux%208.8%20Extended%20Update%20Support&color=blue)
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![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Incorrect%20Implementation%20of%20Authentication%20Algorithm&color=brighgreen)

### Description

A flaw was found in shadow-utils. When asking for a new password, shadow-utils asks the password twice. If the password fails on the second attempt, shadow-utils fails in cleaning the buffer used to store the first entry. This may allow an attacker with enough access to retrieve the password from the memory.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/GrigGM/05-virt-04-docker-hw
- https://github.com/fkie-cad/nvd-json-data-feeds
- https://github.com/fokypoky/places-list