Description
GNOME GLib 2.56.1 has an out-of-bounds read vulnerability in g_markup_parse_context_parse() in gmarkup.c, related to utf8_str().
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | glib2.0 | 2.58.0-1 | — |
| Debian 13 | glib2.0 | 2.58.0-1 | — |
| Debian 12 | glib2.0 | 2.58.0-1 | — |
| Debian 8 | glib2.0 | 2.42.1-1+deb8u2 | DLA-1866-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | glib2.0 | 2.56.2-0ubuntu0.18.04.2 | USN-3767-1 |
| Ubuntu 16.04 LTS | glib2.0 | 2.48.2-0ubuntu4.1 | USN-3767-1 |
| Ubuntu 14.04 LTS | glib2.0 | 2.40.2-0ubuntu1.1 | USN-3767-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | glib2 | 2.54.3-4.7.1 | SUSE-SU-2018:3913-1 |
| SLES 12 SP4 | glib2 | 2.48.2-12.12.2 | SUSE-SU-2019:1722-1 |
| SLES 12 SP3 | glib2 | 2.48.2-12.12.2 | SUSE-SU-2019:1722-1 |
| SLES 12 SP2 | glib2 | 2.48.2-12.12.2 | SUSE-SU-2019:1722-1 |
| SLES 12 SP1 | glib2 | 2.38.2-7.9.2 | SUSE-SU-2019:1596-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | glib2 | 2.38.2-7.9.2 | SUSE-SU-2019:1596-1 |
| SLES 11 SP4 | glib2 | 2.22.5-0.8.36.1 | SUSE-SU-2018:3966-1 |
| SUSE Studio Onsite 1.3 | glib2 | 2.22.5-0.8.36.1 | SUSE-SU-2018:3966-1 |
| SLES for SAP 12 SP4 | glib2 | 2.48.2-12.12.2 | SUSE-SU-2019:1722-1 |
| SLES for SAP 12 SP3 | glib2 | 2.48.2-12.12.2 | SUSE-SU-2019:1722-1 |
| SLES for SAP 12 SP2 | glib2 | 2.48.2-12.12.2 | SUSE-SU-2019:1722-1 |
| SLES for SAP 11 SP4 | glib2 | 2.22.5-0.8.36.1 | SUSE-SU-2018:3966-1 |
| SUSE OpenStack Cloud 7 | glib2 | 2.48.2-12.12.2 | SUSE-SU-2019:1722-1 |
| SUSE Enterprise Storage 4 | glib2 | 2.48.2-12.12.2 | SUSE-SU-2019:1722-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | glib2 +5 | 2.56.1-9.amzn2.0.3 | ALAS2-2023-2049 |
Advisories 8
- USN-3767-1 glib2.0 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-1866-1 glib2.0 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2019:1596-1 Security update for glib2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:3913-1 Security update for glib2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1722-1 Security update for glib2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:3966-1 Security update for glib2 SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-1157 GNOME: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 23, 2023
- ALAS2-2023-2049 Important: glib2 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · May 16, 2023
References
- https://gitlab.gnome.org/GNOME/glib/issues/1361
- USN-3767-1 vendor-advisory
- https://gitlab.gnome.org/GNOME/glib/commit/cec71705406f0b2790422f0c1aa0ff3b4b464b1b
- USN-3767-2 vendor-advisory
- [debian-lts-announce] 20190731 [SECURITY] [DLA 1866-1] glib2.0 security update mailing-list
- [bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8 mailing-list
- [bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8 mailing-list