CVE-2025-7039

Publication date 3 September 2025

Last updated 10 February 2026

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

3.7 · Low

Score breakdown

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.

Read the notes from the security team

Why is this CVE low priority?

Security impact is quite limited

Learn more about Ubuntu priority

Status

Package Ubuntu Release Status
glib2.0 25.10 questing
Not affected
25.04 plucky
Fixed 2.84.1-1ubuntu0.2
24.04 LTS noble
Fixed 2.80.0-6ubuntu3.6
22.04 LTS jammy
Fixed 2.72.4-0ubuntu2.7
20.04 LTS focal
Fixed 2.64.6-1~ubuntu20.04.9+esm1
18.04 LTS bionic
Fixed 2.56.4-0ubuntu0.18.04.9+esm5
16.04 LTS xenial
Fixed 2.48.2-0ubuntu4.8+esm5
14.04 LTS trusty
Fixed 2.40.2-0ubuntu1.1+esm7

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Notes

mdeslaur

Per upstream bug, the security impact of this issue is quite limited, setting priority to low

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
glib2.0

Severity score breakdown

Parameter Value
Base score 3.7 · Low
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

References

Related Ubuntu Security Notices (USN)

Other references