CVE-2018-18898

Publication date 21 March 2019

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Description

The email-ingestion feature in Best Practical Request Tracker 4.1.13 through 4.4 allows denial of service by remote attackers via an algorithmic complexity attack on email address parsing.

Status

Package Ubuntu Release Status
libemail-address-list-perl 20.04 LTS focal
Fixed 0.06-1
19.10 eoan
Fixed 0.06-1
19.04 disco
Fixed 0.06-1
18.10 cosmic Ignored end of life
18.04 LTS bionic
Fixed 0.05-1+deb9u1build0.18.04.1
16.04 LTS xenial
Fixed 0.05-1+deb9u1build0.16.04.1
14.04 LTS trusty Not in release

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 None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-4517-1
    • Email-Address-List vulnerability
    • 17 September 2020

Other references