EUVD-2025-20502

| CVE-2025-7345 HIGH
2025-07-08 [email protected]
7.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

4
Patch Released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 16, 2026 - 04:21 vuln.today
EUVD ID Assigned
Mar 16, 2026 - 04:21 euvd
EUVD-2025-20502
CVE Published
Jul 08, 2025 - 14:15 nvd
HIGH 7.5

Tags

RCE Buffer Overflow Ubuntu Debian Redhat Suse

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.

Analysis

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.

Technical Context

A buffer overflow occurs when data written to a buffer exceeds its allocated size, potentially overwriting adjacent memory and corrupting program state. This vulnerability is classified as Classic Buffer Overflow (CWE-120).

Remediation

Use memory-safe languages or bounds-checked functions. Enable ASLR, DEP/NX, and stack canaries. Apply vendor patches promptly.

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: +0.3
CVSS: +38
POC: 0

Vendor Status

Ubuntu

Priority: Medium
gdk-pixbuf
Release Status Version
oracular ignored end of life, was needs-triage
bionic released 2.36.11-2ubuntu0.1~esm2
focal released 2.40.0+dfsg-3ubuntu0.5+esm1
jammy released 2.42.8+dfsg-1ubuntu0.4
noble released 2.42.10+dfsg-3ubuntu3.2
plucky released 2.42.12+dfsg-2ubuntu0.1
xenial released 2.32.2-1ubuntu1.6+esm2
upstream released 2.42.12+dfsg-4
questing released 2.42.12+dfsg-4build1
USN-7662-1

Debian

Bug #1109262
gdk-pixbuf
Release Status Fixed Version Urgency
bullseye fixed 2.42.2+dfsg-1+deb11u4 -
bullseye (security) fixed 2.42.2+dfsg-1+deb11u4 -
bookworm fixed 2.42.10+dfsg-1+deb12u3 -
bookworm (security) vulnerable 2.42.10+dfsg-1+deb12u2 -
trixie fixed 2.42.12+dfsg-4 -
forky, sid fixed 2.44.5+dfsg-4 -
(unstable) fixed 2.42.12+dfsg-4 -
DLA-4344-1

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EUVD-2025-20502 vulnerability details – vuln.today
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