// For flags

CVE-2025-7345

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

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

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 was discovered that GDK-Pixbuf incorrectly handled certain GIF files. An attacker could possibly use this issue to expose sensitive information. This issue only affected Ubuntu 25.04, Ubuntu 24.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 20.04 LTS. It was discovered that GDK-Pixbuf incorrectly handled certain JPEG files. An attacker could possibly use this issue to cause a crash or execute arbitrary code.

*Credits: Red Hat would like to thank Yifan Zhang (Programming Languages Lab, Peking University) for reporting this issue.
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
Poc
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2025-07-08 CVE Reserved
  • 2025-07-08 CVE Published
  • 2025-11-07 CVE Updated
  • 2025-12-20 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
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Oracle
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 Linux
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Affected
Red Hat
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 Enterprise Linux
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Redhat
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 Enterprise Linux
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Redhat
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 Rhel Aus
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Redhat
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 Rhel E4s
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Redhat
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 Rhel Eus
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Redhat
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 Rhel Eus Long Life
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Redhat
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 Rhel Tus
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Alibabacloud
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 Alibaba Cloud Linux 3
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Alma
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 Linux
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Amazon
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 Linux
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Canonical
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 Ubuntu Linux
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Debian
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 Debian Linux
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Fedoraproject
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 Fedora
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Freebsd
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 Freebsd
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Opensuse
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 Leap
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Oracle
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 Linux
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Redhat
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 Enterprise Linux
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Redhat
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Redhat
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 Rhel E4s
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Redhat
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 Rhel Els
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Redhat
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 Rhel Eus
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Redhat
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 Rhel Eus Long Life
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Redhat
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 Rhel Tus
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Suse
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 Sle-module-basesystem
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Suse
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Suse
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 Sle Hpc-ltss
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Suse
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 Sle Hpc
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Suse
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 Sled
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Suse
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Suse
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 Sles-ltss
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Suse
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 Sles
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Suse
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 Sles Sap
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Suse
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 Suse-manager-proxy-lts
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Suse
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 Suse-manager-server-lts
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