CVE-2020-15853 Denial of service in supybot-fedora
The refresh command causes the bot to stop responding, leading to a denial of service for users.
- 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-2020-15853?
CVE-2020-15853 is a medium-severity denial of service vulnerability in supybot-fedora, published on 18 Oct 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
supybot-fedora implements the command 'refresh', that refreshes the cache of all users from FAS. This takes quite a while to run, and zodbot stops responding to requests during this time.
Weakness: CWE-400
Which versions are affected by CVE-2020-15853?
It affects 1 product.
Products include Fedoraproject Supybot-Fedora.
How do I fix CVE-2020-15853?
No fix has been published for CVE-2020-15853 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-2020-15853 being exploited?
There is no known exploitation of CVE-2020-15853 in the wild and no public exploit code.
Sources
Also known as GHSA-ggp9-5cp6-gwqr.