CVE-2020-27890 Denial of service in n/a
A remote attacker can crash Texas Instruments CC2538 devices by sending a malformed ZCL Write Attributes No Response message, 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-2020-27890?
CVE-2020-27890 is a high-severity denial of service vulnerability in n/a, published on 27 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Zigbee protocol implementation on Texas Instruments CC2538 devices with Z-Stack 3.0.1 does not properly process a ZCL Write Attributes No Response message. It crashes in zclParseInWriteCmd() and does not update the specific attribute's value.
Which versions are affected by CVE-2020-27890?
It affects 1 product.
Products include Ti Z-Stack.
How do I fix CVE-2020-27890?
No fix has been published for CVE-2020-27890 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-2020-27890 being exploited?
There is no known exploitation of CVE-2020-27890 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-v82x-vfgp-hw2x.