# CVE-2025-7039: Glib: buffer under-read on glib through glib/gfileutils.c via get_tmp_file()

CVE-2025-7039 is fixed in 13 products on 1 platform, first by DEBIAN-CVE-2025-7039, released September 3, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-7039
- Priority: Routine
- CVSS: 3.7 (low)
- EPSS: 0.0043
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 2, 2025
- Weakness: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-7039

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | gir1.2-girepository-3.0 Ubuntu 24.04.5 LTS (noble) | 2.80.0-6ubuntu3.6 | [gir1.2-girepository-3.0 2.80.0-6ubuntu3.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-girepository-3.0-2.80.0-6ubuntu3.6.md) | Dec 10, 2025 |
| Linux | gir1.2-glib-2.0 Ubuntu 24.04.5 LTS (noble) | 2.80.0-6ubuntu3.6 | [gir1.2-glib-2.0 2.80.0-6ubuntu3.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-glib-2.0-2.80.0-6ubuntu3.6.md) | Dec 10, 2025 |
| Linux | glib2 opensuse-leap 15.6 | 2.78.6-150600.4.22.1 | [SUSE-SU-2025:4308-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4308-1.md) | Nov 28, 2025 |
| Linux | glib2 opensuse-leap 16.0 | 2.84.4-160000.1.1 | [OPENSUSE-SU-2026:20018-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20018-1.md) | Jan 12, 2026 |
| Linux | glib2 sles 15.6 | 2.78.6-150600.4.22.1 | [SUSE-SU-2025:4308-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4308-1.md) | Nov 28, 2025 |
| Linux | glib2 sles 15.7 | 2.78.6-150600.4.22.1 | [SUSE-SU-2025:4308-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4308-1.md) | Nov 28, 2025 |
| Linux | glib2 sles 16.0 | 2.84.4-160000.1.1 | [SUSE-SU-2026:20032-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20032-1.md) | Jan 12, 2026 |
| Linux | glib2-branding-SLE sles 16.0 | 16-160000.2.2 | [SUSE-SU-2026:20032-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20032-1.md) | Jan 12, 2026 |
| Linux | glib2-doc opensuse-leap 15.6 | 2.78.6-150600.4.22.1 | [SUSE-SU-2025:4308-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4308-1.md) | Nov 28, 2025 |
| Linux | glib2-doc opensuse-leap 16.0 | 2.84.4-160000.1.1 | [OPENSUSE-SU-2026:20018-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20018-1.md) | Jan 12, 2026 |
| Linux | glib2-doc sles 16.0 | 2.84.4-160000.1.1 | [SUSE-SU-2026:20032-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20032-1.md) | Jan 12, 2026 |
| Linux | glib2.0 Debian 12.15 (bookworm) | 2.74.6-2+deb12u7 | [DEBIAN-CVE-2025-7039](https://patchblox.com/security/data/fix/linux/debian-cve-2025-7039.md) | Sep 3, 2025 |
| Linux | glib2.0 Debian 13.5 (trixie) | 2.84.4-3~deb13u1 | [DEBIAN-CVE-2025-7039](https://patchblox.com/security/data/fix/linux/debian-cve-2025-7039.md) | Sep 3, 2025 |
| Linux | glib2.0 Debian 14 | 2.84.4-1 | [DEBIAN-CVE-2025-7039](https://patchblox.com/security/data/fix/linux/debian-cve-2025-7039.md) | Sep 3, 2025 |
| Linux | libgirepository-2.0-0 Ubuntu 24.04.5 LTS (noble) | 2.80.0-6ubuntu3.6 | [libgirepository-2.0-0 2.80.0-6ubuntu3.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libgirepository-2.0-0-2.80.0-6ubuntu3.6.md) | Dec 10, 2025 |
| Linux | libglib2.0-0 Ubuntu 18.04.6 LTS (bionic) | 2.56.4-0ubuntu0.18.04.9+esm5 | [libglib2.0-0 2.56.4-0ubuntu0.18.04.9+esm5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libglib2.0-0-2.56.4-0ubuntu0.18.04.9-esm5.md) | Dec 10, 2025 |
| Linux | libglib2.0-0 Ubuntu 20.04 LTS (focal) | 2.64.6-1~ubuntu20.04.9+esm1 | [libglib2.0-0 2.64.6-1~ubuntu20.04.9+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libglib2.0-0-2.64.6-1-ubuntu20.04.9-esm1.md) | Dec 10, 2025 |
| Linux | libglib2.0-0 Ubuntu 22.04.1 LTS (jammy) | 2.72.4-0ubuntu2.7 | [libglib2.0-0 2.72.4-0ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libglib2.0-0-2.72.4-0ubuntu2.7.md) | Dec 10, 2025 |
| Linux | libglib2.0-0t64 Ubuntu 24.04.5 LTS (noble) | 2.80.0-6ubuntu3.6 | [libglib2.0-0t64 2.80.0-6ubuntu3.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libglib2.0-0t64-2.80.0-6ubuntu3.6.md) | Dec 10, 2025 |
| Linux | libglib2.0-bin Ubuntu 18.04.6 LTS (bionic) | 2.56.4-0ubuntu0.18.04.9+esm5 | [libglib2.0-bin 2.56.4-0ubuntu0.18.04.9+esm5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libglib2.0-bin-2.56.4-0ubuntu0.18.04.9-esm5.md) | Dec 10, 2025 |
| Linux | libglib2.0-bin Ubuntu 20.04 LTS (focal) | 2.64.6-1~ubuntu20.04.9+esm1 | [libglib2.0-bin 2.64.6-1~ubuntu20.04.9+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libglib2.0-bin-2.64.6-1-ubuntu20.04.9-esm1.md) | Dec 10, 2025 |
| Linux | libglib2.0-bin Ubuntu 22.04.1 LTS (jammy) | 2.72.4-0ubuntu2.7 | [libglib2.0-bin 2.72.4-0ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libglib2.0-bin-2.72.4-0ubuntu2.7.md) | Dec 10, 2025 |
| Linux | libglib2.0-bin Ubuntu 24.04.5 LTS (noble) | 2.80.0-6ubuntu3.6 | [libglib2.0-bin 2.80.0-6ubuntu3.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libglib2.0-bin-2.80.0-6ubuntu3.6.md) | Dec 10, 2025 |
| Linux | libglib2.0-data Ubuntu 18.04.6 LTS (bionic) | 2.56.4-0ubuntu0.18.04.9+esm5 | [libglib2.0-data 2.56.4-0ubuntu0.18.04.9+esm5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libglib2.0-data-2.56.4-0ubuntu0.18.04.9-esm5.md) | Dec 10, 2025 |
| Linux | libglib2.0-data Ubuntu 20.04 LTS (focal) | 2.64.6-1~ubuntu20.04.9+esm1 | [libglib2.0-data 2.64.6-1~ubuntu20.04.9+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libglib2.0-data-2.64.6-1-ubuntu20.04.9-esm1.md) | Dec 10, 2025 |
| Linux | libglib2.0-data Ubuntu 22.04.1 LTS (jammy) | 2.72.4-0ubuntu2.7 | [libglib2.0-data 2.72.4-0ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libglib2.0-data-2.72.4-0ubuntu2.7.md) | Dec 10, 2025 |
| Linux | libglib2.0-data Ubuntu 24.04.5 LTS (noble) | 2.80.0-6ubuntu3.6 | [libglib2.0-data 2.80.0-6ubuntu3.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libglib2.0-data-2.80.0-6ubuntu3.6.md) | Dec 10, 2025 |
| Linux | libglib2.0-dev-bin Ubuntu 18.04.6 LTS (bionic) | 2.56.4-0ubuntu0.18.04.9+esm5 | [libglib2.0-dev-bin 2.56.4-0ubuntu0.18.04.9+esm5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libglib2.0-dev-bin-2.56.4-0ubuntu0.18.04.9-esm5.md) | Dec 10, 2025 |
| Linux | libglib2.0-dev-bin Ubuntu 20.04 LTS (focal) | 2.64.6-1~ubuntu20.04.9+esm1 | [libglib2.0-dev-bin 2.64.6-1~ubuntu20.04.9+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libglib2.0-dev-bin-2.64.6-1-ubuntu20.04.9-esm1.md) | Dec 10, 2025 |
| Linux | libglib2.0-dev-bin Ubuntu 22.04.1 LTS (jammy) | 2.72.4-0ubuntu2.7 | [libglib2.0-dev-bin 2.72.4-0ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libglib2.0-dev-bin-2.72.4-0ubuntu2.7.md) | Dec 10, 2025 |
| Linux | libglib2.0-dev-bin Ubuntu 24.04.5 LTS (noble) | 2.80.0-6ubuntu3.6 | [libglib2.0-dev-bin 2.80.0-6ubuntu3.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libglib2.0-dev-bin-2.80.0-6ubuntu3.6.md) | Dec 10, 2025 |
| Linux | libglib2.0-tests Ubuntu 18.04.6 LTS (bionic) | 2.56.4-0ubuntu0.18.04.9+esm5 | [libglib2.0-tests 2.56.4-0ubuntu0.18.04.9+esm5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libglib2.0-tests-2.56.4-0ubuntu0.18.04.9-esm5.md) | Dec 10, 2025 |
| Linux | libglib2.0-tests Ubuntu 20.04 LTS (focal) | 2.64.6-1~ubuntu20.04.9+esm1 | [libglib2.0-tests 2.64.6-1~ubuntu20.04.9+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libglib2.0-tests-2.64.6-1-ubuntu20.04.9-esm1.md) | Dec 10, 2025 |
| Linux | libglib2.0-tests Ubuntu 22.04.1 LTS (jammy) | 2.72.4-0ubuntu2.7 | [libglib2.0-tests 2.72.4-0ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libglib2.0-tests-2.72.4-0ubuntu2.7.md) | Dec 10, 2025 |
| Linux | libglib2.0-tests Ubuntu 24.04.5 LTS (noble) | 2.80.0-6ubuntu3.6 | [libglib2.0-tests 2.80.0-6ubuntu3.6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libglib2.0-tests-2.80.0-6ubuntu3.6.md) | Dec 10, 2025 |

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