title: OpenCV wechat_qrcode Module decoded_bit_stream_parser.cpp decodeByteSegment null pointer dereference
description: A vulnerability classified as problematic was found in OpenCV wechat_qrcode Module up to 4.7.0. Affected by this vulnerability is the function DecodedBitStreamParser::decodeByteSegment of the file qrcode/decoder/decoded_bit_stream_parser.cpp. The manipulation leads to null pointer dereference. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-228547.
problem types: CWE-476 NULL Pointer Dereference
affected:
{
vendor: OpenCV
product: wechat_qrcode Module
versions:
version: 4.0, status: affected
version: 4.1, status: affected
version: 4.2, status: affected
version: 4.3, status: affected
version: 4.4, status: affected
version: 4.5, status: affected
version: 4.6, status: affected
version: 4.7, status: affected
}
metrics:
cvssV3_1: [
version: 3.1
baseScore: 5.3
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
baseSeverity: MEDIUM
]