SARA / Free Tools / CVE / CVE-2022-33294

CVE-2022-33294 — Transient DOS in Modem due to NULL pointer dereference while receiving response

Transient DOS in Modem due to NULL pointer dereference while receiving response of lwm2m registration/update/bootstrap request message.

CVSS

7.5 HIGH

EPSS

0.14% (top 66.10%)

CWE

CWE-476

Published

2023-04-04T04:46:43.701Z

Last modified

2024-08-03T08:01:20.511Z

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

01What is this vulnerability?

Transient DOS in Modem due to NULL pointer dereference while receiving response of lwm2m registration/update/bootstrap request message.

Vendor	Product	Versions
Qualcomm, Inc.	Snapdragon	9205 LTE Modem, 9206 LTE Modem, 9207 LTE Modem, MDM8207, QCA4004, QTS110, Snapdragon 1100 Wearable Platform, Snapdragon 1200 Wearable Platform, Snapdragon Wear 1300 Platform, Snapdragon X5 LTE Modem, WCD9306, WCD9330

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

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.

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

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

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

www.qualcomm.com — https://www.qualcomm.com/company/product-security/bulletins/april-2023-bulletin

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