Description
A flaw was found in glib, where the gvariant deserialization code is vulnerable to a denial of service introduced by additional input validation added to resolve CVE-2023-29499. The offset table validation may be very slow. This bug does not affect any released version of glib but does affect glib distributors who followed the guidance of glib developers to backport the initial fix for CVE-2023-29499.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| glib | glib | 2.75.1 | — |
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | glib2.0 | 2.72.4-0ubuntu2.2 | USN-6165-1 |
| Ubuntu 20.04 LTS | glib2.0 | 2.64.6-1~ubuntu20.04.6 | USN-6165-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | glib2.0 | 2.56.4-0ubuntu0.18.04.9+esm3 | USN-6165-2 |
| Ubuntu Pro 16.04 LTS | glib2.0 | 2.48.2-0ubuntu4.8+esm3 | USN-6165-2 |
| Ubuntu Pro 14.04 LTS | glib2.0 | 2.40.2-0ubuntu1.1+esm6 | USN-6165-2 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | mingw-glib2 +4 | 2.78.0-1.el9 | RHSA-2024:2528 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | mingw32-glib2 +3 | 2.78.0-1.el9 | ALSA-2024:2528 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | glib2 | 2.54.3-150000.4.29.1 | SUSE-SU-2023:3535-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP1 | glib2 | 2.54.3-150000.4.29.1 | SUSE-SU-2023:3535-1 |
| SLE HPC 15 SP1 | glib2 | 2.54.3-150000.4.29.1 | SUSE-SU-2023:3535-1 |
| SUSE Enterprise Storage 6 | glib2 | 2.54.3-150000.4.29.1 | SUSE-SU-2023:3535-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | glib2 +5 | 2.56.1-9.amzn2.0.9 | ALAS2-2025-2767 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | glib | 2.71.0-4 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | mingw32-glib2 +3 | 2.78.0-1.el9 | ELSA-2024-2528 |
Advisories 11
- ALSA-2024:2528 Low: mingw-glib2 security update AlmaLinux Security Advisories · Oct 29, 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
- WID-SEC-2023-2917 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 30, 2026
- RHSA-2024:2528 Red Hat Security Advisory: mingw-glib2 security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- USN-6165-2 glib2.0 vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- USN-6165-1 glib2.0 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- SUSE-SU-2023:3535-1 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
- VDE-2024-073 Phoenix Contact: Multiple Vulnerabilities in PLCnext Firmware CERT@VDE · May 22, 2025
- ALAS2-2025-2767 Important: glib2 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Feb 25, 2025
- ELSA-2024-2528 Low: mingw-glib2 security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 3, 2024