Bug 2547442 (CVE-2026-42618) - CVE-2026-42618 ntfs-3g: ntfs-3g: Privilege escalation via heap-based buffer overflow in ntfs_decompress()
Summary: CVE-2026-42618 ntfs-3g: ntfs-3g: Privilege escalation via heap-based buffer o...
Keywords:
Status: NEW
Alias: CVE-2026-42618
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2547625 2547626
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-07 14:01 UTC by OSIDB Bzimport
Modified: 2026-10-07 18:46 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-10-07 14:01:31 UTC 
In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_decompress() in compress.c that allows an attacker to corrupt one byte of heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image. The overflow is triggered by reading the special crafted file.
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