CVE-2018-8088

Publication date 20 March 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

org.slf4j.ext.EventData in the slf4j-ext module in QOS.CH SLF4J before 1.8.0-beta2 allows remote attackers to bypass intended access restrictions via crafted data. EventData in the slf4j-ext module in QOS.CH SLF4J, has been fixed in SLF4J versions 1.7.26 later and in the 2.0.x series.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libslf4j-java	18.10 cosmic	Not affected
	18.04 LTS bionic	Not affected
	17.10 artful	Ignored end of life
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Notes

leosilva

fix provided by upstream seems not to fix, instead use fix provide by Fedora. class was removed in bionic

Patch details

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

Package	Patch details
libslf4j-java	Other: https://src.fedoraproject.org/cgit/rpms/slf4j.git/diff/0001-Disallow-EventData-deserialization-by-default.patch?id=d7cd96bc7a8e8d8d62c8bc62baa7df02cef56c63

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H