CVE-2021-41499 Classic Buffer Overflow in pyo
Remote attackers can cause a denial of service in the Pyo audio library by passing an overlong audio file name to the Server_debug function.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-41499?
CVE-2021-41499 is a high-severity denial of service vulnerability in n/a, published on 17 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Buffer Overflow Vulnerability exists in ajaxsoundstudio.com n Pyo < 1.03 in the Server_debug function, which allows remote attackers to conduct DoS attacks by deliberately passing on an overlong audio file name.
Weakness: CWE-120
Which versions are affected by CVE-2021-41499?
3 open source packages ship an affected version, including pyo. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
pyo PyPI | All versions | 1.0.3 |
pyo PyPI | All versions | 1.0.3 |
pyo PyPI | All versions | 1.0.3 |
Products include Pyo Project Pyo.
How do I fix CVE-2021-41499?
Upgrade pyo to 1.0.3 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-2021-41499 being exploited?
There is no known exploitation of CVE-2021-41499 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2021-41499, GHSA-5f5c-687x-g5qm, PYSEC-2026-743, UBUNTU-CVE-2021-41499.