CVE-2023-21644: Integer Overflow to Buffer Overflow in RIL

Vulnerability summary

CVE-2023-21644 is a high (CVSS 7.8) Integer Overflow to Buffer Overflow vulnerability in qualcomm, inc. snapdragon. EPSS estimates a 0.11% chance of exploitation in the next 30 days, higher than 1.4% of scored vulnerabilities.

Timeline

1. 05-09-2023
   PublishedVulnerability first disclosed.
2. 06-09-2024
   Last modifiedVulnerability information updated.

Description

Memory corruption in RIL due to Integer Overflow while triggering qcril_uim_request_apdu request.

• CWE-680Integer Overflow to Buffer OverflowThe product performs a calculation to determine how much memory to allocate, but an integer overflow can occur that causes less memory to be allocated than expected, leading to a buffer overflow.
• CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.