CVE-2020-11090 Uncontrolled Resource Consumption in Indy Node
A malformed transaction can crash the primary node, causing repeated view changes that potentially bring down the entire network.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-11090?
CVE-2020-11090 is a high-severity denial of service vulnerability in Hyperledger Indy Node, published on 11 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Indy Node 1.12.2, there is an Uncontrolled Resource Consumption vulnerability. Indy Node has a bug in TAA handling code. The current primary can be crashed with a malformed transaction from a client, which leads to a view change. Repeated rapid view changes have the potential of bringing down the network. This is fixed in version 1.12.3.
Weakness: CWE-400
Which versions are affected by CVE-2020-11090?
3 open source packages ship an affected version, including indy-node. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
indy-node PyPI | All versions | 1.12.3 |
indy-node PyPI | From 1.12.2 | 1.12.3 |
indy-node PyPI | From 1.12.2 | 1.12.3 |
Products include Linuxfoundation Indy-Node.
How do I fix CVE-2020-11090?
Upgrade indy-node to 1.12.3 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-2020-11090 being exploited?
There is no known exploitation of CVE-2020-11090 in the wild and no public exploit code.
Other vulnerabilities in Hyperledger Indy Node
Sources
Also known as GHSA-3gw4-m5w7-v89c, PYSEC-2020-47.