CVE-2023-22327

EUVD-2023-26490 · Published Nov 14, 2023

Out-of-bounds write in firmware for some Intel(R) FPGA products before version 2.8.1 may allow a privileged user to potentially enable information disclosure via local access.

Technologies

Intel Agilex 7 Fpga I-Series 027Intel Agilex 7 Fpga I-Series 023Intel Stratix 10 Gx 2100 FpgaIntel Stratix 10 Gx 2100 Fpga FirmwareIntel Stratix 10 Tx 1650 Fpga FirmwareIntel Agilex 7 Fpga F-Series 008Intel Stratix 10 Gx 650 FpgaIntel Agilex 7 Fpga I-Series 027 FirmwareIntel Agilex 7 Fpga I-Series 019 FirmwareIntel Stratix 10 Gx 850 FpgaIntel Stratix 10 Sx 400 Fpga FirmwareIntel Stratix 10 Dx 2800 FpgaIntel Stratix 10 Gx 2500 Fpga FirmwareIntel Stratix 10 Tx 400 FpgaIntel Stratix 10 Gx 2110 Fpga FirmwareIntel Agilex 7 Fpga F-Series 023 FirmwareIntel Agilex 7 Fpga F-Series 006 FirmwareIntel Stratix 10 Gx 10M FpgaIntel Stratix 10 Tx 400 Fpga FirmwareIntel Stratix 10 Sx 1650 FpgaIntel Stratix 10 Sx 2100 FpgaIntel Agilex 7 Fpga I-Series 035Intel Stratix 10 Tx 2500 Fpga FirmwareIntel Stratix 10 Gx 1650 FpgaIntel Stratix 10 Tx 2500 FpgaIntel Agilex 7 Fpga F-Series 019Intel Stratix 10 Mx 1650 Fpga FirmwareIntel Stratix 10 Tx 2800 FpgaIntel Agilex 7 Fpga I-Series 041 FirmwareIntel Stratix 10 Mx 2100 FpgaIntel Stratix 10 Gx 2800 FpgaIntel Agilex 7 Fpga F-Series 023Intel Stratix 10 Gx 10M Fpga FirmwareIntel Agilex 7 Fpga M-Series 039Intel Stratix 10 Tx 1650 FpgaIntel Stratix 10 Dx 2100 Fpga FirmwareIntel Agilex 7 Fpga I-Series 023 FirmwareIntel Agilex 7 Fpga F-Series 019 FirmwareIntel Agilex 7 Fpga F-Series 014Intel Stratix 10 Tx 2100 Fpga FirmwareIntel Stratix 10 Nx 2100 FpgaIntel Stratix 10 Sx 2800 Fpga FirmwareIntel Stratix 10 Gx 2800 Fpga FirmwareIntel Stratix 10 Gx 1650 Fpga FirmwareIntel Agilex 7 Fpga F-Series 012Intel Stratix 10 Sx 1100 Fpga FirmwareIntel Agilex 7 Fpga F-Series 027 FirmwareIntel Stratix 10 Tx 2800 Fpga FirmwareIntel Stratix 10 Gx 1100 Fpga FirmwareIntel Stratix 10 Tx 2100 FpgaIntel Agilex 7 Fpga F-Series 022Intel Agilex 7 Fpga I-Series 022Intel Stratix 10 Gx 1660 FpgaIntel Agilex 7 Fpga F-Series 006Intel Stratix 10 Gx 400 FpgaIntel Stratix 10 Dx 1100 Fpga FirmwareIntel Stratix 10 Tx 1100 FpgaIntel Stratix 10 Mx 1650 FpgaIntel Stratix 10 Gx 650 Fpga FirmwareIntel Stratix 10 Sx 2500 Fpga FirmwareIntel Agilex 7 Fpga I-Series 040 FirmwareIntel Stratix 10 Gx 2110 FpgaIntel Agilex 7 Fpga F-Series 014 FirmwareIntel Stratix 10 Sx 2500 FpgaIntel Stratix 10 Sx 650 Fpga FirmwareIntel Stratix 10 Sx 2800 FpgaIntel Stratix 10 Gx 400 Fpga FirmwareIntel Stratix 10 Sx 400 FpgaIntel Stratix 10 Tx 850 Fpga FirmwareIntel Stratix 10 Gx 1100 FpgaIntel Stratix 10 Dx 2100 FpgaIntel Stratix 10 Dx 2800 Fpga FirmwareIntel Agilex 7 Fpga M-Series 039 FirmwareIntel Stratix 10 Sx 850 FpgaIntel Agilex 7 Fpga F-Series 027Intel Agilex 7 Fpga I-Series 040Intel Stratix 10 Sx 1650 Fpga FirmwareIntel Stratix 10 Tx 850 FpgaIntel Stratix 10 Sx 2100 Fpga FirmwareIntel Stratix 10 Gx 2500 FpgaIntel Stratix 10 Tx 1100 Fpga FirmwareIntel Agilex 7 Fpga F-Series 008 FirmwareIntel Stratix 10 Gx 1660 Fpga FirmwareIntel Stratix 10 Mx 2100 Fpga FirmwareIntel Agilex 7 Fpga F-Series 022 FirmwareIntel Agilex 7 Fpga I-Series 022 FirmwareIntel Agilex 7 Fpga I-Series 019Intel Agilex 7 Fpga I-Series 035 FirmwareIntel Stratix 10 Nx 2100 Fpga FirmwareIntel Stratix 10 Sx 850 Fpga FirmwareIntel Stratix 10 Dx 1100 FpgaIntel Stratix 10 Sx 1100 FpgaIntel Agilex 7 Fpga I-Series 041Intel Agilex 7 Fpga F-Series 012 FirmwareIntel Stratix 10 Gx 850 Fpga FirmwareIntel Stratix 10 Sx 650 Fpga

Weaknesses

CWE-787

CVSS scores

v3.14.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

MITRE ATT&CK

Inferred

Where this vulnerability fits in an attack

ReconImpact

Privilege Escalation

T1068Exploitation for Privilege Escalation

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00957.html

Potentially impacted assets

See if this affects your attack surface

Latest trending attack

Criticalyesterday

Google Brotli decoder - Remote Code Execution via compressed requests (Exploitation Check)

This control is the second step of the Patrowl response to CVE-2026-111497 (Node2Shell). It complements the first control of 22 October 2026, which focused on the Node.js runtime, and does not replace it. Why a second control CVE-2026-111497 is an out-of-bounds write in the Google Brotli decoder, the library that decompresses Brotli ("br") data. It was first published as a Node.js vulnerability, because Node.js bundles this decoder. Later publications showed that the flaw is in the library itself. Every product that embeds an affected version of the decoder is concerned, whatever its language or vendor. A public proof of concept demonstrates code execution. Any server that decompresses request bodies sent with "Content-Encoding: br" exposes the decoder to unauthenticated attackers. Known cases include Express 5 and NestJS 11 on Node.js, Koa and Fastify setups, Bun, Envoy and Istio with request decompression enabled, and any application or reverse proxy that decodes Brotli request bodies with an affected library. The flaw also works in the other direction. A malicious server can compromise an unpatched client that decodes a Brotli response, for example Node.js fetch(), Python clients (requests, httpx, aiohttp, Scrapy) with the Brotli or brotlicffi package, or libcurl builds with Brotli support. What this control checks Patrowl sends small, valid Brotli-compressed requests to each asset and observes whether the server decodes them. The check does not depend on the technology: it detects the behaviour, whatever the stack behind it. These requests are what any legitimate client could send. They never reach the vulnerable code path and cannot affect the availability of the service. How to read the result Potentially impacted means the asset decodes Brotli request bodies: the attack surface is exposed. It does not confirm that the asset is vulnerable. The version of the Brotli decoder in use is not visible from the outside. This check covers applications that parse request bodies on their root path. A Not impacted result does not rule out exposure on other routes, nor on the client side. Checking the versions on the servers remains the only exhaustive verification. Affected and fixed versions Google Brotli 1.0.3 to 1.2.0 are affected, fixed in 1.0.10, 1.1.1 and 1.2.1. Fixed releases of the main products embedding it: Node.js 22.23.4, 24.22.1 and 26.12.1 (end-of-life lines 20.x and older and 25.x receive no fix), Bun 1.4.4, Envoy 1.37.8, 1.38.6, 1.39.3 and 1.40.0, Istio 1.29.9, 1.30.6 and 1.31.2, Python Brotli 1.2.1 and brotlicffi 1.2.1.0. Products that link against the system library depend on the Brotli package of the Linux distribution. Recommendations Update every component that embeds the Brotli decoder (only real fix). Start with the assets flagged by this control. Restart the processes after the update. Rebuild containers, single-executable applications and appliances that bundle an affected runtime or library. Reduce the exposure until the update is deployed. Reject requests with "Content-Encoding: br" at the reverse proxy, load balancer or WAF, case-insensitively and including lists such as "gzip, br". On Envoy and Istio, disable request decompression for Brotli. Review outbound calls. List the features that fetch content from servers you do not control, and patch the services that host them first.

CVE-2023-22327

Technologies

Weaknesses

CVSS scores

MITRE ATT&CK

References

Potentially impacted assets

Latest trending attack

Google Brotli decoder - Remote Code Execution via compressed requests (Exploitation Check)

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