CVE-2024-21646
published 2024-01-09CVE-2024-21646: Azure uAMQP is a general purpose C library for AMQP 1.0. The UAMQP library is used by several clients to implement AMQP protocol communication. When clients…
PriorityP262critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
5.11%
91.3th percentile
Azure uAMQP is a general purpose C library for AMQP 1.0. The UAMQP library is used by several clients to implement AMQP protocol communication. When clients using this library receive a crafted binary type data, an integer overflow or wraparound or memory safety issue can occur and may cause remote code execution. This vulnerability has been patched in release 2024-01-01.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| azure | azure-uamqp-c | < 2024-01-01 | 2024-01-01 |
| debian | azure-uamqp-python | < azure-uamqp-python 1.6.8-1 (forky) | azure-uamqp-python 1.6.8-1 (forky) |
| microsoft | azure_uamqp | < 2024-01-01 | 2024-01-01 |
| msrc | azl3_azure-iot-sdk-c_2023.08.07-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_azure-iot-sdk-c_2024.03.04-1_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
| msrc | cbl2_azure-iot-sdk-c_2022.01.21-2_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_azure-iot-sdk-c_2022.01.21-4_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- →Vulnerability is triggered when a client receives crafted binary type data over AMQP 1.0 protocol, leading to integer overflow/wraparound or memory safety issue in the uAMQP C library ↗
- →Monitor AMQP 1.0 traffic for malformed or oversized binary type fields that could trigger integer overflow in the Azure uAMQP (libuamqp) parsing logic ↗
- →Affected library: Azure uAMQP C library (azure-uamqp-c); fixed in Debian/Ubuntu package version 1.6.8-1 — flag hosts running older versions ↗
- →Patch baseline: azure-uamqp-c release dated 2024-01-01 is the fixed version; any deployment using a pre-2024-01-01 release of the library is vulnerable ↗
- ·Scope is listed as 'local' in the Debian security tracker, which may affect exploitability assessment depending on deployment context ↗
- ·Debian bookworm and bullseye remain unpatched ('open') as of the tracker snapshot — environments running those releases are still vulnerable ↗
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
osv9.8CRITICAL
vendor_debian9.8CRITICAL
vendor_msrc9.8CRITICAL
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Microsoft
Azure IoT Platform Device SDK Remote Code Execution Vulnerability
vendor_msrc·2024-01-09·CVSS 9.8
CVE-2024-21646 [CRITICAL] CWE-190 Azure IoT Platform Device SDK Remote Code Execution Vulnerability
Azure IoT Platform Device SDK Remote Code Execution Vulnerability
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
GitHub_M: GitHub_M
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Referenc
Debian
CVE-2024-21646: azure-uamqp-python - Azure uAMQP is a general purpose C library for AMQP 1.0. The UAMQP library is us...
vendor_debian·2024·CVSS 9.8
CVE-2024-21646 [CRITICAL] CVE-2024-21646: azure-uamqp-python - Azure uAMQP is a general purpose C library for AMQP 1.0. The UAMQP library is us...
Azure uAMQP is a general purpose C library for AMQP 1.0. The UAMQP library is used by several clients to implement AMQP protocol communication. When clients using this library receive a crafted binary type data, an integer overflow or wraparound or memory safety issue can occur and may cause remote code execution. This vulnerability has been patched in release 2024-01-01.
Scope: local
bookworm: open
bullseye: open
forky: resolved (fixed in 1.6.8-1)
sid: resolved (fixed in 1.6.8-1)
trixie: resolved (fixed in 1.6.8-1)
OSV
CVE-2024-21646: Azure uAMQP is a general purpose C library for AMQP 1
osv·2024-01-09·CVSS 9.8
CVE-2024-21646 [CRITICAL] CVE-2024-21646: Azure uAMQP is a general purpose C library for AMQP 1
Azure uAMQP is a general purpose C library for AMQP 1.0. The UAMQP library is used by several clients to implement AMQP protocol communication. When clients using this library receive a crafted binary type data, an integer overflow or wraparound or memory safety issue can occur and may cause remote code execution. This vulnerability has been patched in release 2024-01-01.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/Azure/azure-uamqp-c/commit/12ddb3a31a5a97f55b06fa5d74c59a1d84ad78fehttps://github.com/Azure/azure-uamqp-c/security/advisories/GHSA-j29m-p99g-7hpvhttps://github.com/Azure/azure-uamqp-c/commit/12ddb3a31a5a97f55b06fa5d74c59a1d84ad78fehttps://github.com/Azure/azure-uamqp-c/security/advisories/GHSA-j29m-p99g-7hpv
2024-01-09
Published