CVE-2020-0421: High severity Google Android vulnerability
In appendFormatV of String8.cpp, there is a possible out of bounds write due to incorrect error handling. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
android/platform/system/coreto a version that resolves this vulnerability.Fixed in 8.0:2020-10-01 - Upgrade
Upgrade
android/platform/system/coreto a version that resolves this vulnerability.Fixed in 8.1:2020-10-01 - Upgrade
Upgrade
android/platform/system/coreto a version that resolves this vulnerability.Fixed in 9:2020-10-01 - Upgrade
Upgrade
android/platform/system/coreto a version that resolves this vulnerability.Fixed in 10:2020-10-01 - Upgrade
Upgrade
android/platform/system/coreto a version that resolves this vulnerability.Fixed in 11:2020-10-01
Event History
Frequently Asked Questions
What is the severity of CVE-2020-0421?
CVE-2020-0421 has a high severity rating due to the potential for local escalation of privilege.
How do I fix CVE-2020-0421?
To fix CVE-2020-0421, update your Android device to versions that include the relevant security patches.
Which Android versions are affected by CVE-2020-0421?
CVE-2020-0421 affects Android versions 8.0, 8.1, 9.0, 10.0, and 11.0.
Is user interaction necessary for exploiting CVE-2020-0421?
No, user interaction is not needed for the exploitation of CVE-2020-0421.
What could be the impact of exploiting CVE-2020-0421?
Exploiting CVE-2020-0421 could lead to a local escalation of privilege on affected Android devices.