CVE-2020-11284 — Locked memory can be unlocked and modified by non secure boot loader through imp

Locked memory can be unlocked and modified by non secure boot loader through improper system call sequence making the memory region untrusted source of input for secure boot loader in Snapdragon Auto, Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wi

01What is this vulnerability?

Locked memory can be unlocked and modified by non secure boot loader through improper system call sequence making the memory region untrusted source of input for secure boot loader in Snapdragon Auto, Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking

02Affected products

Vendor	Product	Versions
Qualcomm, Inc.	Snapdragon Auto, Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking	AQT1000, AR8035, PM3003A, PM4125, PM4250, PM6125, PM6150, PM6150A, PM6150L, PM6350, PM640A, PM640L, PM640P, PM7250B, PM8004, PM8005, PM8008, PM8009, PM8150A, PM8150B, PM8150C, PM8150L, PM8250, PM8350, PM855, PM855B, PM855L, PM855P, PM8998, PMD9655, PMI632, PMI8998, PMK8002, PMK8003, PMM8195AU, PMM855AU, PMR525, PMX24, PMX55, QAT3522, QAT3550, QBT1500, QBT2000, QCA6390, QCA6391, QCA6420, QCA6421, QCA6426, QCA6430, QCA6431, QCA6436, QCA6574AU, QCA6595, QCA9984, QCM2290, QCM4290, QCS2290, QCS405, QCS4290, QET4101, QET5100, QET6100, QET6105, QFS2530, QFS2580, QPA4360, QPA5460, QPA6560, QSW8574, QTC410S, QTC800H, QTC800S, QTC801S, QTM525, SA6155P, SA8195P, SD 8C, SD 8CX, SD460, SD480, SD662, SD675, SD855, SD865 5G, SD870, SD888 5G, SDM830, SDR425, SDR660, SDR660G, SDR735, SDR735G, SDR8150, SDR8250, SDR865, SDX24, SDX55, SDX55M, SDXR2 5G, SM4125, SMB1351, SMB1354, SMB1355, SMB1390, SMB1396, SMR525, SMR526, SMR545, SMR546, WCD9340, WCD9341, WCD9360, WCD9370, WCD9375, WCD9380, WCD9385, WCN3910, WCN395 ...[truncated*]

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: 2021-05-07T09:10:34.000Z
• Last modified: 2024-08-04T11:28:13.847Z

09References

• www.qualcomm.com — https://www.qualcomm.com/company/product-security/bulletins/may-2021-bulletin