Bug 2521124 - CVE-2025-67873 imhex: Capstone: Heap buffer overflow via skipdata callback allows denial of service or arbitrary code execution. [epel-10]
Summary: CVE-2025-67873 imhex: Capstone: Heap buffer overflow via skipdata callback al...
Keywords:
Status: NEW
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: imhex
Version: epel10
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Jonathan Wright
QA Contact:
URL:
Whiteboard: {"flaws": ["90e919ed-5d1b-42ff-b8d6-6...
Depends On:
Blocks: CVE-2025-67873
TreeView+ depends on / blocked
 
Reported: 2026-08-21 19:28 UTC by Praise Ogwuche
Modified: 2026-08-21 19:28 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Praise Ogwuche 2026-08-21 19:28:36 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Capstone is a disassembly framework. In versions 6.0.0-Alpha5 and prior, Skipdata length is not bounds-checked, so a user-provided skipdata callback can make cs_disasm/cs_disasm_iter memcpy more than 24 bytes into cs_insn.bytes, causing a heap buffer overflow in the disassembly path. Commit cbef767ab33b82166d263895f24084b75b316df3 fixes the issue.


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