Vulnerability · Published Aug 31, 2020 · Assigned by mitre
CVE-2020-13595
Medium 6.5
In plain English
A medium-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities).
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)0.9%top 40.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
The Bluetooth Low Energy (BLE) controller implementation in Espressif ESP-IDF 4.0 through 4.2 (for ESP32 devices) returns the wrong number of completed BLE packets and triggers a reachable assertion on the host stack when receiving a packet with an MIC failure. An attacker within radio range can silently trigger the assertion (which disables the target's BLE stack) by sending a crafted sequence of BLE packets.
Affected products (as reported)
References
- https://asset-group.github.io/disclosures/sweyntooth/ x_refsource_MISC
- https://asset-group.github.io/cves.html x_refsource_MISC
- https://github.com/espressif/esp32-bt-lib x_refsource_MISC