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CVE-2019-12450

31
FAUCET Score

CVE-2019-12450 describes a critical vulnerability in GNOME GLib versions 2.15.0 through 2.61.1, specifically within the file_copy_fallback function, where file permissions are not properly restricted during a copy operation, defaulting to potentially insecure permissions. This vulnerability carries a CVSS score of 9.8 (Critical), indicating it can be exploited remotely with low complexity, leading to complete compromise of confidentiality, integrity, and availability. Despite its severity and impact on major Linux distributions like Canonical, Debian, and Red Hat, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.15.0, <= 2.61.1CPE matchmatch criteria
cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
8.1CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:*
8.2CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.60%
Probability of exploitation in next 30 days
EPSS Percentile
83.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0260 is in the 74th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (12)

microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 2.60.1-5
microsoftpatch availablevia msrc
Product: 16998-16823Fixed in: 2.60.1-5
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 2.58.0-6
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 2.58.0-6
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 2.60.1-5
microsoftpatch availablevia msrc
Product: 16997-16820Fixed in: 2.58.0-6
microsoftpatch availablevia msrc
Product: cm1 glib 2.58.0-6 on CBL Mariner 1.0Fixed in: 2.58.0-6
microsoftpatch availablevia msrc
Product: cbl2 glib 2.60.1-5 on CBL Mariner 2.0Fixed in: 2.60.1-5
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: glib2-0:2.56.1-7.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: ibus-0:1.5.17-11.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: glib2-0:2.56.4-7.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift DoFixed in: openshiftdo/odo-init-image-rhel7:1.1.3-2
View patch

Vendor Advisories (3)

microsoft2020-Aug/CVE-2019-12450

CVE-2019-12450

Aug 11, 2020
redhatCVE-2019-12450Moderate

glib2: file_copy_fallback in gio/gfile.c in GNOME GLib does not properly restrict file permissions while a copy operation is in progress

May 23, 2019
microsoft2019-May/CVE-2019-12450Critical

file_copy_fallback in gio/gfile.c in GNOME GLib 2.15.0 through 2.61.1 does not properly restrict file permissions while a copy operation is in progress. Instead default permissions are used.

May 14, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-06/msg00076.html
Third Party Advisory
access.redhat.com / errata/RHSA-2019:3530
Third Party Advisory
gitlab.gnome.org / GNOME/glib/commit/d8f8f4d637ce43f8699ba94c9b7648beda0ca174
PatchVendor Advisory
lists.debian.org / debian-lts-announce/2019/06/msg00013.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/2W4WIOAGO3M743M5KZLVQZM3NGHQDYLI
security.netapp.com / advisory/ntap-20190606-0003
Third Party Advisory
usn.ubuntu.com / 4014-1
Third Party Advisory
usn.ubuntu.com / 4014-2
Third Party Advisory