A flaw was found in glib. This vulnerability allows a heap buffer overflow and denial-of-service (DoS) via an integer overflow in GLib's GIO (GLib Input/Output) escape_byte_string() function when processing malicious file or remote filesystem attribute values.
Security readout for executives and security teams
Plain-English summary
CVE-2025-14512 is a GLib issue that can crash affected software when it handles specially crafted file or remote filesystem attributes. The main business impact described is denial of service, not data theft or privilege gain. Red Hat rates it Medium with CVSS 6.5.
Executive priority
Treat as a routine-but-timely availability risk. Patch during normal security maintenance unless affected systems process untrusted remote filesystem content or support critical services, where faster remediation is justified.
Technical view
An integer overflow in GLib GIO escape_byte_string() can cause a heap buffer overflow while escaping malicious attribute values. The CVSS vector is AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H, indicating possible network delivery but requiring user interaction and impacting availability.
Likely exposure
Exposure is most relevant on affected Red Hat Enterprise Linux 8, 9, and 10 systems with the glib2 package versions listed by Red Hat, especially where applications process untrusted file metadata or remote filesystem attributes.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. The CVSS vector indicates no privileges are required, but user interaction is required. Public sources describe denial of service through malicious attribute handling, not confirmed code execution.
Researcher notes
Evidence names CWE-190 and a heap overflow path in GIO attribute escaping. The bundle lists many affected RHEL glib2 builds and Red Hat advisories, but does not provide exploit details. Avoid assuming broader impact beyond the cited vendor data.
Mitigation direction
Apply the relevant Red Hat security advisory updates for affected RHEL releases.
Prioritize systems using remote filesystems or processing untrusted file metadata.
Check GNOME and distribution vendor guidance for non-Red Hat GLib packages.
Plan restart or reboot of services using GLib after package updates.
Validation and detection
Inventory installed glib2 package versions across RHEL systems.
Compare findings with Red Hat affected package versions and errata.
Confirm applicable RHSA updates are installed for each RHEL minor stream.
Monitor application crashes involving GLib GIO attribute handling.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · low confidence lookup
CWE-190: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-190 · source CWE mapping
Integer Overflow or Wraparound
Integer Overflow or Wraparound represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.