Security Experts:

Connect with us

Hi, what are you looking for?

SecurityWeekSecurityWeek

Malware & Threats

Google Patches Android Zero-Day Exploited in Targeted Attacks

Google on Monday announced the availability of the November 2021 security updates for Android and warned that one of the patched vulnerabilities has been exploited in attacks.

Google on Monday announced the availability of the November 2021 security updates for Android and warned that one of the patched vulnerabilities has been exploited in attacks.

The zero-day vulnerability is tracked as CVE-2021-1048 and Google says there is evidence that the flaw has been exploited in limited, targeted attacks. The internet giant described it as a use-after-free bug in the kernel that can be exploited for local privilege escalation.

No other information has been provided about the attacks exploiting CVE-2021-1048, but the targeted nature of the attacks suggests that they have been carried out by a state-sponsored threat group, likely for espionage purposes.

Based on data provided by Google, this is the sixth Android vulnerability exploited in malicious attacks in 2021.

The November 2021 Android updates patch a total of nearly 40 vulnerabilities, and Google says the most severe of them affects the System component and can allow a remote attacker to execute arbitrary code in the context of a privileged process.

Critical severity ratings have been assigned to vulnerabilities affecting the System, Android TV, and Qualcomm components. High-severity issues — roughly 30 bugs have this severity rating — have been addressed in the Framework, Media Framework, System, Kernel, Android TV, MediaTek and Qualcomm components.

Google has published a separate advisory to describe the 10 vulnerabilities patched in its Pixel devices this month.

Related: Google Android Security Update Patches 40 Vulnerabilities

Related: Recently Patched Android Vulnerability Exploited in Attacks

Related: Google: Four Recently Patched Android Vulnerabilities Exploited in Attacks

Written By

Eduard Kovacs (@EduardKovacs) is a contributing editor at SecurityWeek. He worked as a high school IT teacher for two years before starting a career in journalism as Softpedia’s security news reporter. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.

Click to comment

Expert Insights

Related Content

Mobile & Wireless

Technical details published for an Arm Mali GPU flaw leading to arbitrary kernel code execution and root on Pixel 6.

Malware & Threats

Microsoft plans to improve the protection of Office users by blocking XLL add-ins from the internet.

Mobile & Wireless

Apple rolled out iOS 16.3 and macOS Ventura 13.2 to cover serious security vulnerabilities.

Cloud Security

VMware vRealize Log Insight vulnerability allows an unauthenticated attacker to take full control of a target system.

Mobile & Wireless

Apple’s iOS 12.5.7 update patches CVE-2022-42856, an actively exploited vulnerability, in old iPhones and iPads.

Vulnerabilities

Security researchers have observed an uptick in attacks targeting CVE-2021-35394, an RCE vulnerability in Realtek Jungle SDK.

Mobile & Wireless

Two vulnerabilities in Samsung’s Galaxy Store that could be exploited to install applications or execute JavaScript code by launching a web page.

Vulnerabilities

Google has awarded more than $25,000 to the researchers who reported the vulnerabilities patched with the release of the latest Chrome update.