CVE-2023-39076 — Injecting random data into the USB memory area on a General Motors (GM) Chevrole

Injecting random data into the USB memory area on a General Motors (GM) Chevrolet Equinox 2021 Software. 2021.03.26 (build version) vehicle causes a Denial of Service (DoS) in the in-car infotainment system.

01What is this vulnerability?

Injecting random data into the USB memory area on a General Motors (GM) Chevrolet Equinox 2021 Software. 2021.03.26 (build version) vehicle causes a Denial of Service (DoS) in the in-car infotainment system.

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

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

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: 2023-09-08T00:00:00.000Z
• Last modified: 2024-09-26T18:05:14.989Z

09References

• blog.jhyeon.dev — https://blog.jhyeon.dev/posts/vuln/202307/gm-chevrolet/
• blog.dhjeong.kr — https://blog.dhjeong.kr/posts/vuln/202307/gm-chevrolet/
• nvd.nist.gov — https://nvd.nist.gov/vuln/detail/CVE-2023-39076