CVE-2021-34801 Denial of service in Valine
Remote attackers can cause application outage in Valine by sending a User-Agent header with only product and version.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-34801?
CVE-2021-34801 is a medium-severity denial of service vulnerability in n/a, published on 16 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Valine 1.4.14 allows remote attackers to cause a denial of service (application outage) by supplying a ua (aka User-Agent) value that only specifies the product and version.
Which versions are affected by CVE-2021-34801?
2 open source packages ship an affected version, including valine. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
valine npm | All versions to 1.4.14 | None |
valine npm | All versions to 1.4.14 | None |
Products include Valine.js Valine.
How do I fix CVE-2021-34801?
No fix has been published for CVE-2021-34801 yet. Limit exposure of the affected software until one is available.
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-2021-34801 being exploited?
There is no known exploitation of CVE-2021-34801 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-p2c4-gxp4-j3xp.