CVE-2021-27191 Denial of Service in get-ip-range
An attacker can cause resource exhaustion and denial of service by providing a large IP range to the get-ip-range Node.js package.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-27191?
CVE-2021-27191 is a high-severity denial of service vulnerability in n/a, published on 11 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The get-ip-range package before 4.0.0 for Node.js is vulnerable to denial of service (DoS) if the range is untrusted input. An attacker could send a large range (such as 128.0.0.0/1) that causes resource exhaustion.
Which versions are affected by CVE-2021-27191?
2 open source packages ship an affected version, including get-ip-range. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
get-ip-range npm | All versions | 4.0.0 |
get-ip-range npm | All versions | 4.0.0 |
Products include Get-Ip-Range Project Get-Ip-Range.
How do I fix CVE-2021-27191?
Upgrade get-ip-range to 4.0.0 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-27191 being exploited?
There is no known exploitation of CVE-2021-27191 in the wild and no public exploit code.
Sources
Also known as GHSA-6q4w-3wp4-q5wf.