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HIGH

Gdk‑pixbuf: heap‑buffer‑overflow in gdk‑pixbuf

Published Jul 8, 2025

Description

A flaw exists in gdk‑pixbuf within the gdk_pixbuf__jpeg_image_load_increment function (io-jpeg.c) and in glib’s g_base64_encode_step (glib/gbase64.c). When processing maliciously crafted JPEG images, a heap buffer overflow can occur during Base64 encoding, allowing out-of-bounds reads from heap memory, potentially causing application crashes or arbitrary code execution.

Affected products

Remediation

Vendor solution

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Red Hat statement

The Red Hat Product Security team has rated this vulnerability as Moderate.The flaw, identified in gdk-pixbuf, allows remote attackers to trigger a denial of service by supplying a specially crafted image file. This issue stems from improper bounds handling during image decoding. While exploitable without authentication, it does not lead to data compromise or code execution.

Red Hat mitigation

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Weaknesses (1)

CWE-120

Classic Buffer Overflow

References (17)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Jul 8, 2025
Updated Jun 30, 2026
Reserved Jul 8, 2025
Link CVE-2025-7345
CISA Vulnrichment
Updated Jul 8, 2025
NVD
Status Deferred
Modified Jun 30, 2026
Link CVE-2025-7345
Red Hat
Severity Moderate
Public date Jul 8, 2025
Links CVE-2025-7345 - Bugzilla