Heap Buffer Overflow Vulnerability in gdk-pixbuf Affecting GNOME
CVE-2025-7345

7.5HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
8 July 2025

What is CVE-2025-7345?

The gdk-pixbuf library, utilized by various GNOME applications, contains a vulnerability in the gdk_pixbuf__jpeg_image_load_increment function, and also within the Base64 encoding process in glib's g_base64_encode_step. This flaw can be exploited when the library processes specially crafted JPEG files, which may lead to a heap buffer overflow. As a result, attackers can perform out-of-bounds reads from the heap, potentially leading to application crashes and the execution of arbitrary code.

References

https://access.redhat.com/security/cve/CVE-2025-7345
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2377063
issue-trackingx_refsource_REDHAT
https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/249

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Yifan Zhang (Programming Languages Lab, Peking University) for reporting this issue.
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CVE-2025-7345 : Heap Buffer Overflow Vulnerability in gdk-pixbuf Affecting GNOME