cve/2023/CVE-2023-5981.md

### [CVE-2023-5981](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5981)
![](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)
![](https://img.shields.io/static/v1?label=Product&message=Red%20Hat%20Enterprise%20Linux%209&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Red%20Hat%20Enterprise%20Linux%209.2%20Extended%20Update%20Support&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Observable%20Discrepancy&color=brighgreen)

### Description

A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/bartvoet/assignment-ehb-security-review-adamlenez
- https://github.com/fkie-cad/nvd-json-data-feeds
- https://github.com/fokypoky/places-list