A weakness has been identified in Orc discount up to 3.0.1.2. This issue affects the function compile of the file markdown.c of the component Markdown Handler. This manipulation causes uncontrolled recursion.
The attack is restricted to local execution. The exploit has been made available to the public and could be used for attacks. The project maintainer confirms: "[I]f you feed it an infinitely deep blockquote input it will crash. (...) [T]his is a duplicate of an old bug that I've been working on."
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
Low
Partial disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 7
https://github.com/Orc/discount/
cna@vuldb.com
https://github.com/Orc/discount/issues/305
cna@vuldb.com
https://github.com/Orc/discount/issues/305#issuecomment-4027546673
cna@vuldb.com
https://github.com/user-attachments/files/25847391/crash00.md
cna@vuldb.com
https://vuldb.com/?ctiid.353138
cna@vuldb.com
https://vuldb.com/?id.353138
cna@vuldb.com
https://vuldb.com/?submit.775841
cna@vuldb.com