CVE-2021-43611 Denial of service in n/a
A crafted SIP From header can crash applications using the Belle-sip library, causing a denial of service.
- 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-2021-43611?
CVE-2021-43611 is a high-severity denial of service vulnerability in n/a, published on 12 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Belledonne Belle-sip before 5.0.20 can crash applications such as Linphone via " \ " in the display name of a From header.
Weakness: CWE-404
Which versions are affected by CVE-2021-43611?
It affects 1 product.
Products include Linphone Belle-Sip.
How do I fix CVE-2021-43611?
No fix has been published for CVE-2021-43611 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-2021-43611 being exploited?
There is no known exploitation of CVE-2021-43611 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-9g8w-v7c9-68v9.