CVE-2019-13012

Publication date 28 June 2019

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The keyfile settings backend in GNOME GLib (aka glib2.0) before 2.60.0 creates directories using g_file_make_directory_with_parents (kfsb->dir, NULL, NULL) and files using g_file_replace_contents (kfsb->file, contents, length, NULL, FALSE, G_FILE_CREATE_REPLACE_DESTINATION, NULL, NULL, NULL). Consequently, it does not properly restrict directory (and file) permissions. Instead, for directories, 0777 permissions are used; for files, default file permissions are used. This is similar to CVE-2019-12450.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
glib2.0	19.04 disco	Not affected
	18.10 cosmic	Fixed 2.58.1-2ubuntu0.2
	18.04 LTS bionic	Fixed 2.56.4-0ubuntu0.18.04.4
	16.04 LTS xenial	Fixed 2.48.2-0ubuntu4.4
	14.04 LTS trusty	Fixed 2.40.2-0ubuntu1.1+esm3

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Patch details

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

Package	Patch details
glib2.0	Upstream: 5e4da71 Upstream: 54317c9

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	High
Availability impact	None
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N