PT-2021-13071 · Google · Android

Published 2021-03-01 · Updated 2021-03-12 · CVE-2021-0393

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Android versions Android-8.1 through Android-11

Description: In the Scanner::LiteralBuffer::NewCapacity function of scanner.cc, there is a possible out of bounds write due to an integer overflow. This could lead to remote code execution if an attacker can supply a malicious PAC file, with no additional execution privileges needed. User interaction is not needed for exploitation.

Recommendations: For Android versions Android-8.1 through Android-11, update to a version that contains a fix for this issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Integer Overflow

Memory Corruption

Weakness Enumeration

CWE-190

CWE-787

Related Identifiers

ASB-A-168041375

CVE-2021-0393

Affected Products

Android

References · 6

• https://source.android.com/security/bulletin/2021-03-01 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-0393 · Vendor Advisory
• https://osv.dev/vulnerability/ASB-A-168041375 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-0393 · Security Note
• https://t.me/cibsecurity/24691 · Telegram Post
• https://android.googlesource.com/platform/external/v8/+/a91d71434065cde21f480f5d92432b9a4f2f3521 · Note