CVE-2025-7345

Publication date 8 July 2025

Last updated 22 July 2025

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
gdk-pixbuf	25.10 questing	Fixed 2.42.12+dfsg-4build1
	25.04 plucky	Fixed 2.42.12+dfsg-2ubuntu0.1
	24.10 oracular	Ignored end of life, was needs-triage
	24.04 LTS noble	Fixed 2.42.10+dfsg-3ubuntu3.2
	22.04 LTS jammy	Fixed 2.42.8+dfsg-1ubuntu0.4
	20.04 LTS focal	Fixed 2.40.0+dfsg-3ubuntu0.5+esm1
	18.04 LTS bionic	Fixed 2.36.11-2ubuntu0.1~esm2
	16.04 LTS xenial	Fixed 2.32.2-1ubuntu1.6+esm2

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
gdk-pixbuf	Upstream: 4af7802

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-7662-1
GDK-PixBuf vulnerabilities
22 July 2025