PT-2019-4638 · Gnome+7 · Glib+7

Simon Mcvittie · Published 2019-03-18 · Updated 2021-06-29 · CVE-2019-13012

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:C/A:N

Name of the Vulnerable Software and Affected Versions Glib versions prior to 2.60.0

Description The issue is related to incorrect permission handling in the Glib library, specifically in the functions g file make directory with parents and g file replace contents. This can allow a remote attacker to elevate their privileges and gain access to files. The keyfile settings backend in GNOME GLib creates directories and files with improper permission restrictions, using 0777 permissions for directories and default file permissions for files.

Recommendations For versions prior to 2.60.0, update to version 2.60.0 or later to resolve the issue. As a temporary workaround, consider restricting access to directories and files created using the g file make directory with parents and g file replace contents functions until a patch is available.

Fix

Incorrect Permission

Weakness Enumeration

CWE-732

CWE-275

Related Identifiers

ALSA-2021:1586

ALT-PU-2019-1452

BDU:2020-00799

CESA-2021_1586

CVE-2019-13012

DLA-1866-1

DLA-1866-2

OPENSUSE-SU-2019:1749-1

OPENSUSE-SU-2019_1749-1

RHSA-2021:1586

RHSA-2021_1586

RLSA-2021:1586

SUSE-SU-2019:1824-1

SUSE-SU-2019:1830-1

SUSE-SU-2019:1830-2

SUSE-SU-2019:1833-1

SUSE-SU-2019_1824-1

SUSE-SU-2019_1830-1

SUSE-SU-2019_1830-2

SUSE-SU-2019_1833-1

USN-4049-1

USN-4049-2

USN-4049-3

USN-4049-4

Affected Products

Alt Linux

Almalinux

Centos

Glib

Red Hat

Rocky Linux

Suse

Ubuntu

References · 183

• https://osv.dev/vulnerability/ALSA-2021:1586 · Vendor Advisory
• https://gitlab.gnome.org/GNOME/glib/commit/5e4da714f00f6bfb2ccd6d73d61329c6f3a08429 · Patch
• https://safe-surf.ru/specialists/bulletins-nkcki/664257 · Security Note
• https://linux.oracle.com/errata/ELSA-2021-1586.html · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20200327SE16 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16125 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2019:1830-2 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4049-3 · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-04780 · Security Note
• https://bdu.fstec.ru/vul/2019-02447 · Security Note
• https://ubuntu.com/security/CVE-2019-13012 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-13012 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2019-13012 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se81-bulletin-20200429SE81 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4049-2 · Vendor Advisory