PT-2022-10944 · Google · Android

Published 2022-01-01 · Updated 2022-01-20 · CVE-2021-39659

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Android versions Android-10 through Android-12

Description The issue is related to an unhandled exception in the sortSimPhoneAccountsForEmergency function of CreateConnectionProcessor.java, which could prevent access to emergency calling. This might lead to a local denial of service, requiring User execution privileges for exploitation. No user interaction is needed for exploitation.

Recommendations For Android versions Android-10 through Android-12, consider implementing exception handling in the sortSimPhoneAccountsForEmergency function of CreateConnectionProcessor.java to prevent denial of service. As a temporary workaround, ensure that the CreateConnectionProcessor.java module is properly configured to handle exceptions and minimize the risk of exploitation.

Fix

Improper Handling of Exceptional Conditions

Weakness Enumeration

CWE-755

Related Identifiers

ASB-A-208267659

CVE-2021-39659

Affected Products

Android

References · 5

• https://source.android.com/security/bulletin/2022-01-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39659 · Security Note
• https://osv.dev/vulnerability/CVE-2021-39659 · Vendor Advisory
• https://osv.dev/vulnerability/ASB-A-208267659 · Vendor Advisory
• https://android.googlesource.com/platform/packages/services/Telecomm/+/f1cae30e2c9837d1587a3a732bcc9398bd1f9e63 · Note