CVE-2023-50966 erlang-jose vulnerable to denial of service via large p2c value
Attackers can cause denial of service via high CPU consumption by sending a large PBES2 Count value in JOSE headers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-50966?
CVE-2023-50966 is a medium-severity denial of service vulnerability in n/a, published on 19 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
erlang-jose (aka JOSE for Erlang and Elixir) through 1.11.6 allow attackers to cause a denial of service (CPU consumption) via a large p2c (aka PBES2 Count) value in a JOSE header.
Weakness: CWE-400
Which versions are affected by CVE-2023-50966?
2 open source packages ship an affected version, including jose.
| Package | Affected | Fixed in |
|---|---|---|
jose Hex | All versions | 1.11.7 |
jose Hex | All versions | 1.11.7 |
How do I fix CVE-2023-50966?
Upgrade jose to 1.11.7 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-2023-50966 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-50966 exists.
Sources
Also known as AZL-39719, AZL-39857, DEBIAN-CVE-2023-50966, GHSA-9mg4-v392-8j68, UBUNTU-CVE-2023-50966.