Vulnerability · Published May 10, 2023 · Assigned by VulDB

CVE-2023-2617OpenCV wechat_qrcode Module decoded_bit_stream_parser.cpp decodeByteSegment null pointer dereference

Medium 5.3

In plain English

A medium-severity null pointer dereference in wechat_qrcode Module from OpenCV. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)1.4%top 28.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	opencv	4.6.0+dfsg-12	DEBIAN-CVE-2023-2617
Debian:13	opencv	4.6.0+dfsg-12	DEBIAN-CVE-2023-2617
Debian:14	opencv	4.6.0+dfsg-12	DEBIAN-CVE-2023-2617

Affected products (as reported)

Vendor	Product	Versions
OpenCV	wechat_qrcode Module	4.04.14.24.34.44.54.64.7

Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

https://vuldb.com/?id.228547 vdb-entry, technical-description
https://vuldb.com/?ctiid.228547 signature, permissions-required
https://github.com/opencv/opencv_contrib/pull/3480 issue-tracking, patch
https://gist.github.com/GZTimeWalker/3ca70a8af2f5830711e9cccc73fb5270 exploit