Description
An issue was discovered in GNOME GLib before 2.66.7 and 2.67.x before 2.67.4. If g_byte_array_new_take() was called with a buffer of 4GB or more on a 64-bit platform, the length would be truncated modulo 2**32, causing unintended length truncation.
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 | 2.66.7-1 | — |
| Debian 13 | glib2.0 | 2.66.7-1 | — |
| Debian 12 | glib2.0 | 2.66.7-1 | — |
| Debian 9 | glib2.0 | 2.50.3-2+deb9u3 | DLA-3044-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | glib2.0 | 2.64.6-1~ubuntu20.04.2 | USN-4759-1 |
| Ubuntu 18.04 LTS | glib2.0 | 2.56.4-0ubuntu0.18.04.7 | USN-4759-1 |
| Ubuntu 16.04 LTS | glib2.0 | 2.48.2-0ubuntu4.7 | USN-4759-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | glib2.0 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | glib2 +5 | 2.56.4-10.el8_4.1 | RHSA-2021:3058 |
| RHEL 8 | mingw-glib2 +4 | 2.66.7-2.el8 | RHSA-2021:4526 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | glib2-doc +1 | 2.56.4-10.el8_4.1 | ALSA-2021:3058 |
| AlmaLinux 8 | mingw32-glib2 +3 | 2.66.7-2.el8 | ALSA-2021:4526 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | glib2 | 2.56.4-10.el8_4.1 | RLSA-2021:3058 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | glib2 | 2.62.6-3.6.1 | SUSE-SU-2021:0778-1 |
| SLES 15 SP1 | glib2 | 2.54.3-4.24.1 | SUSE-SU-2021:0890-1 |
| SLES 15 | glib2 | 2.54.3-4.24.1 | SUSE-SU-2021:0890-1 |
| SLES 12 SP5 | glib2 | 2.48.2-12.22.1 | SUSE-SU-2021:0801-1 |
| SLES 12 SP4 | glib2 | 2.48.2-12.22.1 | SUSE-SU-2021:0801-1 |
Show 21 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | glib2 | 2.48.2-12.22.1 | SUSE-SU-2021:0801-1 |
| SLES 12 SP2 | glib2 | 2.48.2-12.22.1 | SUSE-SU-2021:0801-1 |
| SLES for SAP 15 SP1 | glib2 | 2.54.3-4.24.1 | SUSE-SU-2021:0890-1 |
| SLES for SAP 15 | glib2 | 2.54.3-4.24.1 | SUSE-SU-2021:0890-1 |
| SLES for SAP 12 SP5 | glib2 | 2.48.2-12.22.1 | SUSE-SU-2021:0801-1 |
| SLES for SAP 12 SP4 | glib2 | 2.48.2-12.22.1 | SUSE-SU-2021:0801-1 |
| SLES for SAP 12 SP3 | glib2 | 2.48.2-12.22.1 | SUSE-SU-2021:0801-1 |
| SLES for SAP 12 SP2 | glib2 | 2.48.2-12.22.1 | SUSE-SU-2021:0801-1 |
| SLE Micro 5.0 | glib2 | 2.62.6-3.6.1 | SUSE-SU-2021:0778-1 |
| SLE HPC 15 SP1 | glib2 | 2.54.3-4.24.1 | SUSE-SU-2021:0890-1 |
| SLE HPC 15 | glib2 | 2.54.3-4.24.1 | SUSE-SU-2021:0890-1 |
| SUSE OpenStack Cloud Crowbar 9 | glib2 | 2.48.2-12.22.1 | SUSE-SU-2021:0801-1 |
| SUSE OpenStack Cloud Crowbar 8 | glib2 | 2.48.2-12.22.1 | SUSE-SU-2021:0801-1 |
| SUSE OpenStack Cloud 9 | glib2 | 2.48.2-12.22.1 | SUSE-SU-2021:0801-1 |
| SUSE OpenStack Cloud 8 | glib2 | 2.48.2-12.22.1 | SUSE-SU-2021:0801-1 |
| SUSE OpenStack Cloud 7 | glib2 | 2.48.2-12.22.1 | SUSE-SU-2021:0801-1 |
| SUSE Manager Server 4.0 | glib2 | 2.54.3-4.24.1 | SUSE-SU-2021:0890-1 |
| SUSE Manager Retail Branch Server 4.0 | glib2 | 2.54.3-4.24.1 | SUSE-SU-2021:0890-1 |
| SUSE Manager Proxy 4.0 | glib2 | 2.54.3-4.24.1 | SUSE-SU-2021:0890-1 |
| SUSE HPE Helion OpenStack 8 | glib2 | 2.48.2-12.22.1 | SUSE-SU-2021:0801-1 |
| SUSE Enterprise Storage 6 | glib2 | 2.54.3-4.24.1 | SUSE-SU-2021:0890-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.2 | glib2 | 2.62.6-lp152.2.6.1 | openSUSE-SU-2021:0406-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.13 | glib | 2.66.7-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | glib2 +5 | 2.56.1-9.amzn2.0.2 | ALAS2-2021-1711 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | glib | 2.60.1-5 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | glib2 +5 | 2.56.4-10.el8_4.1 | ELSA-2021-3058 |
Advisories 15
- ALSA-2021:4526 Important: mingw-glib2 security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2021:3058 Moderate: glib2 security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2021:4526 Red Hat Security Advisory: mingw-glib2 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2021:3058 Red Hat Security Advisory: glib2 security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- SSA-398330 SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5 Siemens ProductCERT · Oct 13, 2026
- USN-4759-1 glib2.0 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-3044-1 glib2.0 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:3058 Moderate: glib2 security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2021:0890-1 Security update for glib2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0778-1 Security update for glib2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0801-1 Security update for glib2 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0406-1 Security update for glib2 SUSE / openSUSE Security Updates · Feb 4, 2026
- ICSA-23-348-10 Siemens SIMATIC S7-1500 CISA ICS & IT advisories · Aug 12, 2025
- ALAS2-2021-1711 Moderate: glib2 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 6, 2021
- ELSA-2021-3058 Moderate: glib2 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Aug 11, 2021
References
- https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1942
- https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1944
- [mina-dev] 20210225 [jira] [Created] (FTPSERVER-500) Security vulnerability in common/lib/log4j-1.2.17.jar mailing-list
- FEDORA-2021-7c71cda8da vendor-advisory
- https://security.netapp.com/advisory/ntap-20210319-0004/
- FEDORA-2021-7b5e2e6844 vendor-advisory
- [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
- GLSA-202107-13 vendor-advisory
- [debian-lts-announce] 20220606 [SECURITY] [DLA 3044-1] glib2.0 security update mailing-list