CVE-2025-7345: Buffer Overflow (CVSS 7.5)

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.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-120 CWE-120

References

Other References

https://access.redhat.com/errata/RHSA-2025:12841 https://access.redhat.com/errata/RHSA-2025:12862 https://access.redhat.com/errata/RHSA-2025:13315 https://access.redhat.com/errata/RHSA-2025:14574 https://access.redhat.com/errata/RHSA-2025:14575 https://access.redhat.com/errata/RHSA-2025:14576 https://access.redhat.com/errata/RHSA-2025:14585 https://access.redhat.com/errata/RHSA-2025:14618 https://access.redhat.com/errata/RHSA-2025:14646 https://access.redhat.com/errata/RHSA-2025:14647

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-7345? +

CVE-2025-7345 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2025-7345? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-7345