CVE-2018-18751

Publication date 29 October 2018

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

Description

An issue was discovered in GNU gettext 0.19.8. There is a double free in default_add_message in read-catalog.c, related to an invalid free in po_gram_parse in po-gram-gen.y, as demonstrated by lt-msgfmt.

Status

Package Ubuntu Release Status
gettext 18.10 cosmic
Fixed 0.19.8.1-8ubuntu0.1
18.04 LTS bionic
Fixed 0.19.8.1-6ubuntu0.1
16.04 LTS xenial
Fixed 0.19.7-2ubuntu3.1
14.04 LTS trusty
Fixed 0.18.3.1-1ubuntu3.1

Patch details

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

Package Patch details
gettext

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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-3815-1
    • gettext vulnerability
    • 12 November 2018
    • USN-3815-2
    • gettext vulnerability
    • 12 November 2018

Other references