CVE-2025-7345

Gdk‑pixbuf: heap‑buffer‑overflow in gdk‑pixbuf

State: Published
Severity: 7.5 High
Published: Jul 8, 2025
Updated: Jun 30, 2026
Reserved: Jul 8, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	redhat

Weaknesses

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Affected Products

Product	Versions
gdk-pixbuf	before 2.43.4Affected
Red Hat Enterprise Linux 10Red Hat	0:2.42.12-4.el10_0 and laterNot affected
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat	0:2.36.12-4.el7_9 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	0:2.36.12-7.el8_10 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	0:2.36.12-7.el8_10 and laterNot affected
Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat	0:2.36.12-6.el8_2 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat	0:2.36.12-6.el8_4 and laterNot affected
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat	0:2.36.12-6.el8_4 and laterNot affected
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat	0:2.36.12-6.el8_6 and laterNot affected
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRed Hat	0:2.36.12-6.el8_6 and laterNot affected
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRed Hat	0:2.36.12-6.el8_6 and laterNot affected
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat	0:2.36.12-6.el8_8 and laterNot affected
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat	0:2.36.12-6.el8_8 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:2.42.6-6.el9_6 and laterNot affected
Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRed Hat	0:2.42.6-3.el9_0 and laterNot affected
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat	0:2.42.6-4.el9_2 and laterNot affected
Red Hat Enterprise Linux 9.4 Extended Update SupportRed Hat	0:2.42.6-5.el9_4 and laterNot affected
Red Hat Enterprise Linux 6Red Hat

References

RHSA-2025:12841vendor-advisory
RHSA-2025:12862vendor-advisory
RHSA-2025:13315vendor-advisory
RHSA-2025:14574vendor-advisory
RHSA-2025:14575vendor-advisory
RHSA-2025:14576vendor-advisory
RHSA-2025:14585vendor-advisory
RHSA-2025:14618vendor-advisory
RHSA-2025:14646vendor-advisory
RHSA-2025:14647vendor-advisory
RHSA-2025:14683vendor-advisory
https://access.redhat.com/security/cve/CVE-2025-7345vdb-entry
RHBZ#2377063issue-tracking
https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/249
https://lists.debian.org/debian-lts-announce/2025/10/msg00024.html

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