CVE-2019-15939 — An issue was discovered in OpenCV 4

An issue was discovered in OpenCV 4.1.0. There is a divide-by-zero error in cv::HOGDescriptor::getDescriptorSize in modules/objdetect/src/hog.cpp.

01What is this vulnerability?

An issue was discovered in OpenCV 4.1.0. There is a divide-by-zero error in cv::HOGDescriptor::getDescriptorSize in modules/objdetect/src/hog.cpp.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-09-05T15:04:06.000Z
• Last modified: 2024-08-05T01:03:32.411Z

09References

• github.com — https://github.com/OpenCV/opencv/issues/15287
• github.com — https://github.com/opencv/opencv/pull/15382
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00025.html
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2021/10/msg00028.html