Vulnerability · Published Jan 4, 2022 · Assigned by MediaTek

CVE-2022-20021

Medium 6.5

In plain English

A medium-severity security flaw in MT6580, MT6630, MT6735, MT6737, MT6739, MT6750S, MT6753, MT6755S, MT6757, MT6757C, MT6757CD, MT6757CH, MT6763, MT6771, MT7662T, MT7663, MT7668, MT8163, MT8167, MT8167S, MT8173, MT8183, MT8321, MT8362A from MediaTek, Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).

Severity (CVSS NVD)6.5Medium

Exploit odds (30 days)0.3%top 79.9% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

In Bluetooth, there is a possible application crash due to bluetooth does not properly handle the reception of multiple LMP_host_connection_req. This could lead to remote denial of service of bluetooth with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06198513; Issue ID: ALPS06198513.

Affected products (as reported)

Vendor	Product	Versions
MediaTek, Inc.	MT6580, MT6630, MT6735, MT6737, MT6739, MT6750S, MT6753, MT6755S, MT6757, MT6757C, MT6757CD, MT6757CH, MT6763, MT6771, MT7662T, MT7663, MT7668, MT8163, MT8167, MT8167S, MT8173, MT8183, MT8321, MT8362A, MT8362B, MT8385, MT8765, MT8788	Android 10.0, 11.0

References

https://corp.mediatek.com/product-security-bulletin/January-2022 x_refsource_MISC