CVE-2023-2618 OpenCV wechat_qrcode Module decoded_bit_stream_parser.cpp decodeHanziSegment memory leak

What is CVE-2023-2618?

CVE-2023-2618 is a medium-severity denial of service vulnerability in OpenCV wechat_qrcode Module, published on 10 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability, which was classified as problematic, has been found in OpenCV wechat_qrcode Module up to 4.7.0. Affected by this issue is the function DecodedBitStreamParser::decodeHanziSegment of the file qrcode/decoder/decoded_bit_stream_parser.cpp. The manipulation leads to memory leak. The attack may be launched remotely. The name of the patch is 2b62ff6181163eea029ed1cab11363b4996e9cd6. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-228548.

Weakness: CWE-401

Which versions are affected by CVE-2023-2618?

It affects 1 product.

Products include Opencv Opencv.

How do I fix CVE-2023-2618?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-2618 being exploited?

There is no known exploitation of CVE-2023-2618 in the wild and no public exploit code.

Other vulnerabilities in OpenCV wechat_qrcode Module

• CVE-2019-5063 Out-of-bounds Write in OpenCV High 8.8
• CVE-2019-5064 Out-of-bounds Write in OpenCV High 8.8
• CVE-2019-14491 Out-of-bounds Read in OpenCV High 8.2
• CVE-2019-14492 Out-of-bounds Read and Out-of-bounds Write in OpenCV High 7.5
• CVE-2018-7712 Denial of service in n/a High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2023-2618, GHSA-v2pm-rv6h-9g9p, JLSEC-2026-568, UBUNTU-CVE-2023-2618.