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Advisory severityHigh7.5Vendor: MediumRed Hat Linux

High [CVE-2025-7345] Gdk‑pixbuf: heap‑buffer‑overflow in gdk‑pixbuf

This high-severity Red Hat Linux advisory covers CVE-2025-7345 affecting Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8.2 Advanced Update Support.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2025-7345 Source published Source updated

VulniPulse record published

CVE-2025-7345
Affected products & platforms
Red Hat LinuxRed Hat Enterprise Linux
Open source advisory

Summary

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. The Red Hat Product Security team has rated this vulnerability as Moderate.

The flaw, identified in gdk-pixbuf, allows remote attackers to trigger a denial of service by supplying a specially crafted image file. This issue stems from improper bounds handling during image decoding.

While exploitable without authentication, it does not lead to data compromise or code execution. Red Hat severity: Moderate — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Weakness: CWE-120.

Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 11 more.

Is CVE-2025-7345 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2025-7345 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2025-7345?

Upgrade to a fixed release named by Red Hat:

  • gdk-pixbuf2-0:2.42.12-4.el10_0
  • gdk-pixbuf2-0:2.36.12-4.el7_9
  • gdk-pixbuf2-0:2.36.12-7.el8_10
  • gdk-pixbuf2-0:2.36.12-6.el8_2
  • gdk-pixbuf2-0:2.36.12-6.el8_4
  • gdk-pixbuf2-0:2.36.12-6.el8_6
  • gdk-pixbuf2-0:2.36.12-6.el8_8
  • gdk-pixbuf2-0:2.42.6-6.el9_6
  • gdk-pixbuf2-0:2.42.6-3.el9_0
  • gdk-pixbuf2-0:2.42.6-4.el9_2
  • gdk-pixbuf2-0:2.42.6-5.el9_4
  • RHSA-2025:12862

10 more fixed releases are listed below.

Confirm against the vendor advisory before you patch.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.

Official advisory · high-confidence parse· fetched 5 days ago·verify at source

Fixed versions
  • gdk-pixbuf2-0:2.42.12-4.el10_0
  • gdk-pixbuf2-0:2.36.12-4.el7_9
  • gdk-pixbuf2-0:2.36.12-7.el8_10
  • gdk-pixbuf2-0:2.36.12-6.el8_2
  • gdk-pixbuf2-0:2.36.12-6.el8_4
  • gdk-pixbuf2-0:2.36.12-6.el8_6
  • gdk-pixbuf2-0:2.36.12-6.el8_8
  • gdk-pixbuf2-0:2.42.6-6.el9_6
  • gdk-pixbuf2-0:2.42.6-3.el9_0
  • gdk-pixbuf2-0:2.42.6-4.el9_2
  • gdk-pixbuf2-0:2.42.6-5.el9_4
  • RHSA-2025:12862
  • RHSA-2025:14683
  • RHSA-2025:13315
  • RHSA-2025:14618
  • RHSA-2025:14647
  • RHSA-2025:14646
  • RHSA-2025:14585
  • RHSA-2025:12841
  • RHSA-2025:14575
  • RHSA-2025:14576
  • RHSA-2025:14574

Official advisory · high-confidence parse· fetched 5 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Official advisory · high-confidence parse· fetched 5 days ago·verify at source

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