Loop with Unreachable Exit Condition ('Infinite Loop')
CVE-2025-32029
Summary
The ts-asn1-der is a collection of utility classes to encode `ASN.1` data following DER rule. Incorrect `number` DER encoding can lead to denial on service for absolute values in the range `2**31` -- `2**32 - 1`. The arithmetic in the `numBitLen` didn't take into account that values in this range could result in a negative result upon applying the `>>` operator, leading to an infinite loop. The issue affects @apeleghq/asn1-der versions prior to 1.0.4. If upgrading is not an option, the issue can be mitigated by validating inputs to `Asn1Integer` to ensure that they are not smaller than `-2**31 + 1` and no larger than `2**31 - 1`.
- LOW
- LOCAL
- NONE
- NONE
CWE-835 - Loop with Unreachable Exit Condition
Loops with multiple exits and flags detract from the quality of an application. They tend to make control structures difficult to understand, and introduce the risk of non-termination and other structural problems. The vulnerability “loop with unreachable exit condition” enables attackers to exploit this flaw, leading to denial of service.
Advisory Timeline
- Published
