Application crash via out-of-bounds Base64 read
Published Jul 8, 2025 · Updated Jun 30, 2026
Heap buffer overflow in GNOME GdkPixbuf before 2.43.4 allows remote attackers to crash applications via a crafted JPEG image. The incremental JPEG loader reaches glib's g_base64_encode_step during Base64 encoding, where crafted image data causes an out-of-bounds heap read. No authentication or user interaction is required, and any network-facing application that processes the image can be interrupted.
Summary
What happened
Heap buffer overflow in GNOME GdkPixbuf before 2.43.4 allows remote attackers to crash applications via a crafted JPEG image. The incremental JPEG loader reaches glib's g_base64_encode_step during Base64 encoding, where crafted image data causes an out-of-bounds heap read. No authentication or user interaction is required, and any network-facing application that processes the image can be interrupted.
The record
- CVE
- CVE-2025-7345
- Published
- Jul 8, 2025
- Updated
- Jun 30, 2026
- Vendor
- 389 Directory Server
- Product
- Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
- Classifications
- CWE-120
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 8, 2025CVE publishedPublication date reported by the CVE source.
- Jun 30, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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