CVE-2025-7345

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.

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.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

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.