Vulnerability · Published Jan 14, 2022 · Assigned by google_android

CVE-2021-39680

Medium 4.4

In plain English

A medium-severity security flaw in Android. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).

Severity (CVSS NVD)4.4Medium

Exploit odds (30 days)0.1%top 98.5% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

In sec_SHA256_Transform of sha256_core.c, there is a possible way to read heap data due to uninitialized data. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-197965864References: N/A

Affected products (as reported)

Vendor	Product	Versions
n/a	Android	Android kernel

References

https://source.android.com/security/bulletin/pixel/2022-01-01 x_refsource_MISC