CVE-2020-25623

Publication date 2 October 2020

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Erlang/OTP 22.3.x before 22.3.4.6 and 23.x before 23.1 allows Directory Traversal. An attacker can send a crafted HTTP request to read arbitrary files, if httpd in the inets application is used.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
erlang	20.04 LTS focal	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Notes

mdeslaur

per upstream, introduced in OTP 22.3.1 and corrected in OTP 22.3.4.6. It was also introduced in OTP 23.0 and corrected in OTP 23.1

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
erlang	Upstream: 5296ae6 Upstream: 5296ae6

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N