Versions of the package jsrsasign before 11.1.1 are vulnerable to Infinite loop via the bnModInverse function in ext/jsbn2.js when the BigInteger.modInverse implementation receives zero or negative inputs, allowing an attacker to hang the process permanently by supplying such crafted values (e.g., modInverse(0, m) or modInverse(-1, m)).
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Jsrsasign_Project Jsrsasign
cpe:2.3:a:jsrsasign_project:jsrsasign:*:*:*:*:*:node.js:*:*
|
— |
11.1.1
|
References 4
https://gist.github.com/Kr0emer/a1bf5cd4547cc630d2dcc5e761de8264
report@snyk.io
https://github.com/kjur/jsrsasign/commit/ca5b027240287a1e71fe63019fc44003325943…
report@snyk.io
https://github.com/kjur/jsrsasign/pull/648
report@snyk.io
https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15370938
report@snyk.io