Description
A flaw was found in glib. An integer overflow during temporary file creation leads to an out-of-bounds memory access, allowing an attacker to potentially perform path traversal or access private temporary file content by creating symbolic links. This vulnerability allows a local attacker to manipulate file paths and access unauthorized data. The core issue stems from insufficient validation of file path lengths during temporary file operations.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
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 | 2.84.4-1 | — |
| Debian 13 | glib2.0 | 2.84.4-3~deb13u1 | — |
| Debian 12 | glib2.0 | 2.74.6-2+deb12u7 | — |
| Debian 11 | glib2.0 | 2.66.8-1+deb11u7 | DLA-4412-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | glib2.0 | 2.86.0-2ubuntu0.1 | USN-7942-1 |
| Ubuntu 24.04 LTS | glib2.0 | 2.80.0-6ubuntu3.6 | USN-7942-1 |
| Ubuntu 22.04 LTS | glib2.0 | 2.72.4-0ubuntu2.7 | USN-7942-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | glib2.0 | 2.64.6-1~ubuntu20.04.9+esm1 | — |
| Ubuntu Pro 18.04 LTS | glib2.0 | 2.56.4-0ubuntu0.18.04.9+esm5 | — |
| Ubuntu Pro 16.04 LTS | glib2.0 | 2.48.2-0ubuntu4.8+esm5 | — |
| Ubuntu Pro 14.04 LTS | glib2.0 | 2.40.2-0ubuntu1.1+esm7 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | glib2 +4 | 2.88.0-1.1.hum1 | RHSA-2026:7461 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | glib2 | 2.78.6-150600.4.22.1 | SUSE-SU-2025:4308-1 |
| SLES 15 SP6 | glib2 | 2.78.6-150600.4.22.1 | SUSE-SU-2025:4308-1 |
| SLES 12 SP5 | glib2 | 2.48.2-12.49.1 | SUSE-SU-2025:4278-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | glib2 +1 | 2.84.4-160000.1.1 | SUSE-SU-2026:20032-1 |
| SLES for SAP 16.0 | glib2-branding-SLE | 16-160000.2.2 | SUSE-SU-2026:20032-1 |
| SLES 16.0 | glib2 +1 | 2.84.4-160000.1.1 | SUSE-SU-2026:20032-1 |
| SLES 16.0 | glib2-branding-SLE | 16-160000.2.2 | SUSE-SU-2026:20032-1 |
| SLE Micro 6.2 | glib2 | 2.84.4-160000.1.1 | SUSE-SU-2026:20074-1 |
| SLE Micro 6.2 | glib2-branding-SLE | 16-160000.2.2 | SUSE-SU-2026:20074-1 |
| SLE Micro 6.1 | glib2 | 2.78.6-slfo.1.1_5.1 | SUSE-SU-2025:21063-1 |
| SLE Micro 6.0 | glib2 | 2.76.2-10.1 | SUSE-SU-2025:21201-1 |
| SLE Micro 5.5 | glib2 | 2.70.5-150400.3.26.1 | SUSE-SU-2025:4347-1 |
| SLE Micro 5.4 | glib2 | 2.70.5-150400.3.26.1 | SUSE-SU-2025:4347-1 |
| SLE Micro 5.3 | glib2 | 2.70.5-150400.3.26.1 | SUSE-SU-2025:4347-1 |
| SLE Micro 5.2 | glib2 | 2.62.6-150200.3.33.1 | SUSE-SU-2025:4186-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | glib2 | 2.84.4-1.1 | openSUSE-SU-2025:15432-1 |
| openSUSE Leap 16.0 | glib2 +1 | 2.84.4-160000.1.1 | openSUSE-SU-2026:20018-1 |
| openSUSE Leap 15.6 | glib2 +1 | 2.78.6-150600.4.22.1 | SUSE-SU-2025:4308-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | glib | 2.78.6-4 | — |
| Azure Linux 2 (CBL-Mariner) | glib | 2.71.0-6 | — |
Advisories 19
- WID-SEC-2026-2189 Dell PowerProtect Data Domain: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 2, 2026
- RHSA-2026:7461 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- WID-SEC-2026-0349 Dell Avamar und NetWorker: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 17, 2026
- WID-SEC-2025-2258 NetApp ActiveIQ Unified Manager für VMware vSphere (Glib, SQLite): Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 31, 2026
- ICSA-26-188-05 Siemens SINEC OS CISA ICS & IT advisories · Jul 7, 2026
- SSA-253495 SSA-253495: Multiple Vulnerabilities in SINEC OS before V4.0 Siemens ProductCERT · Jun 2, 2026
- WID-SEC-2026-0778 Dell Secure Connect Gateway Policy Manager: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 11, 2026
- USN-7942-1 glib2.0 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- openSUSE-SU-2026:20018-1 Security update for glib2 SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15432-1 gio-branding-upstream-2.84.4-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20074-1 Security update for glib2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20032-1 Security update for glib2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4347-1 Security update for glib2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21201-1 Security update for glib2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21063-1 Security update for glib2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4278-1 Security update for glib2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4186-1 Security update for glib2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:4308-1 Security update for glib2 SUSE / openSUSE Security Updates · Feb 4, 2026
- DLA-4412-1 glib2.0 - security update Debian Security (DSA / DLA) · Dec 16, 2025
References
- https://access.redhat.com/security/cve/CVE-2025-7039 vdb-entry
- RHBZ#2392423 issue-tracking