CVE-2017-18256 Denial of service in n/a
Remote attackers can cause denial of service in Brave Browser by sending JavaScript with long alert arguments, requiring an upgrade to mitigate.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2017-18256?
CVE-2017-18256 is a medium-severity denial of service vulnerability in n/a, published on 4 Apr 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Brave Browser before 0.13.0 allows remote attackers to cause a denial of service (resource consumption) via a long alert() argument in JavaScript code, because window dialogs are mishandled.
Which versions are affected by CVE-2017-18256?
It affects 1 product.
Products include Brave Brave Browser.
How do I fix CVE-2017-18256?
No fix has been published for CVE-2017-18256 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-2017-18256 being exploited?
There is no known exploitation of CVE-2017-18256 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in n/a
Sources
Also known as GHSA-57mp-vw5r-fm9q.