7.5

CVE-2022-35923

Exploit

Inefficient Regular Expression Complexity in v8n

v8n is a javascript validation library. Versions of v8n prior to 1.5.1 were found to have an inefficient regular expression complexity in the `lowercase()` and `uppercase()` regex which could lead to a denial of service attack. In testing of the `lowercase()` function a payload of 'a' + 'a'.repeat(i) + 'A' with 32 leading characters took 29443 ms to execute. The same issue happens with uppercase(). Users are advised to upgrade. There are no known workarounds for this issue.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
V8n Project ≫ V8n SwPlatformnode.js Version < 1.5.1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.33% 0.674
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
security-advisories@github.com 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-1333 Inefficient Regular Expression Complexity

The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.

CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

https://github.com/imbrn/v8n/commit/92393862156fad190c05ec3f6e2bc73308dcd2f9
Patch
Third Party Advisory
https://github.com/imbrn/v8n/security/advisories/GHSA-xrx9-gj26-5wx9
Third Party Advisory
https://huntr.dev/bounties/2d92f644-593b-43b4-bfd1-c8042ac60609/
Third Party Advisory
Exploit