CVE-2024-39431 — In UMTS RLC driver, there is a possible out of bounds write due to a missing bou

In UMTS RLC driver, there is a possible out of bounds write due to a missing bounds check. This could lead to remote denial of service with System execution privileges needed.

01What is this vulnerability?

In UMTS RLC driver, there is a possible out of bounds write due to a missing bounds check. This could lead to remote denial of service with System execution privileges needed.

02Affected products

Vendor	Product	Versions
Unisoc (Shanghai) Technologies Co., Ltd.	SC7731E/SC9832E/SC9863A/T310/T606/T612/T616/T610/T618/T760/T770/T820/S8000	Android12/Android13/Android14

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: 2024-09-27T07:37:40.908Z
• Last modified: 2024-09-27T15:42:50.544Z

09References

• www.unisoc.com — https://www.unisoc.com/en_us/secy/announcementDetail/1830802995705610241