CVE-2024-27099
Azure IoT Platform Device SDK Double Free Vulnerability
The uAMQP is a C library for AMQP 1.0 communication to Azure Cloud Services. When processing an incorrect AMQP_VALUE failed state, may cause a double free problem. This may cause a RCE. Update submodule with commit 2ca42b6e4e098af2d17e487814a91d05f6ae4987.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Azure IoT Platform Device SDK Double Free Vulnerability
The uAMQP is a C library for AMQP 1.0 communication to Azure Cloud Services. When processing an incorrect AMQP_VALUE failed state, may cause a double free problem. This may cause a RCE. Update submodule with commit 2ca42b6e4e098af2d17e487814a91d05f6ae4987.
- Record
CVE-2024-27099- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-415
- Updated
- 2026-11-02
EUVDEUVD-2024-24351
The uAMQP is a C library for AMQP 1.0 communication to Azure Cloud Services. When processing an incorrect AMQP_VALUE failed state, may cause a double free problem. This may cause a RCE. Update submodule with commit 2ca42b6e4e098af2d17e487814a91d05f6ae4987.
- Record
EUVD-2024-24351- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
NVD
The uAMQP is a C library for AMQP 1.0 communication to Azure Cloud Services. When processing an incorrect AMQP_VALUE failed state, may cause a double free problem. This may cause a RCE. Update submodule with commit 2ca42b6e4e098af2d17e487814a91d05f6ae4987.
- Record
CVE-2024-27099- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-415
- Updated
- 2026-11-02
OSVAZL-35447
CVE-2024-27099 affecting package azure-iot-sdk-c for versions less than 2022.01.21-3
The uAMQP is a C library for AMQP 1.0 communication to Azure Cloud Services. When processing an incorrect AMQP_VALUE failed state, may cause a double free problem. This may cause a RCE. Update submodule with commit 2ca42b6e4e098af2d17e487814a91d05f6ae4987.
- Record
AZL-35447- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVAZL-35471
CVE-2024-27099 affecting package azure-iot-sdk-c for versions less than 2024.03.04-1
The uAMQP is a C library for AMQP 1.0 communication to Azure Cloud Services. When processing an incorrect AMQP_VALUE failed state, may cause a double free problem. This may cause a RCE. Update submodule with commit 2ca42b6e4e098af2d17e487814a91d05f6ae4987.
- Record
AZL-35471- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSV
Azure IoT Platform Device SDK Double Free Vulnerability
The uAMQP is a C library for AMQP 1.0 communication to Azure Cloud Services. When processing an incorrect AMQP_VALUE failed state, may cause a double free problem. This may cause a RCE. Update submodule with commit 2ca42b6e4e098af2d17e487814a91d05f6ae4987.
- Record
CVE-2024-27099- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-415
- Updated
- 2026-11-02
Show 4 moreShow less
OSVDEBIAN-CVE-2024-27099
The uAMQP is a C library for AMQP 1.0 communication to Azure Cloud Services. When processing an incorrect AMQP_VALUE failed state, may cause a double free problem. This may cause a RCE. Update submodule with commit 2ca42b6e4e098af2d17e487814a91d05f6ae4987.
- Record
DEBIAN-CVE-2024-27099- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2024-27099
The uAMQP is a C library for AMQP 1.0 communication to Azure Cloud Services. When processing an incorrect AMQP_VALUE failed state, may cause a double free problem. This may cause a RCE. Update submodule with commit 2ca42b6e4e098af2d17e487814a91d05f6ae4987.
- Record
UBUNTU-CVE-2024-27099- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVopenSUSE-SU-2024:13729-1 No score
python310-uamqp-1.6.8-3.1 on GA media
These are all security issues fixed in the python310-uamqp-1.6.8-3.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:13729-1- Updated
- 2026-11-02
OSVSUSE-SU-2024:0947-1 No score
Security update for python-uamqp
This update for python-uamqp fixes the following issues:
- CVE-2024-27099: Fixed potential double-free in link_frame_received() (bsc#1220535).
Bug fixes:
- Fixed compatibility with OpenSSL 3.x (bsc#1217782)
- Record
SUSE-SU-2024:0947-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
azure-iot-sdk-cAzure Linux:2 |
before 2022.01.21-3 | 2022.01.21-3 |
azure-iot-sdk-cAzure Linux:3 |
before 2024.03.04-1 | 2024.03.04-1 |
azure-uamqp-pythonDebian:12 |
All versions, plus listed versions 1.5.3-11.6.10-11.6.11-11.6.11-21.6.4-1 Show 7 moreShow less1.6.5-11.6.5-21.6.8-11.6.8-21.6.9-11.6.9-21.6.9-3 |
None known |
azure-uamqp-pythonDebian:13 |
before 1.6.8-2 | 1.6.8-2 |
azure-uamqp-pythonDebian:14 |
before 1.6.8-2 | 1.6.8-2 |
python-uamqpSUSE:Linux Enterprise Module for Public Cloud 15 SP2 |
before 1.5.3-150100.4.18.1 | 1.5.3-150100.4.18.1 |
python-uamqpSUSE:Linux Enterprise Module for Public Cloud 15 SP3 |
before 1.5.3-150100.4.18.1 | 1.5.3-150100.4.18.1 |
python-uamqpSUSE:Linux Enterprise Module for Public Cloud 15 SP4 |
before 1.5.3-150100.4.18.1 | 1.5.3-150100.4.18.1 |
python-uamqpSUSE:Linux Enterprise Module for Public Cloud 15 SP5 |
before 1.5.3-150100.4.18.1 | 1.5.3-150100.4.18.1 |
python-uamqpopenSUSE:Leap 15.5 |
before 1.5.3-150100.4.18.1 | 1.5.3-150100.4.18.1 |
Show 6 moreShow less
| Package | Affected | Fixed |
|---|---|---|
azure-uamqp-pythonUbuntu:20.04:LTS |
All versions, plus listed versions 1.2.6-11.2.6-21.2.6-4 |
None known |
azure-uamqp-pythonUbuntu:22.04:LTS |
All versions, plus listed versions 1.2.13-11.4.3-11.4.3-1ubuntu11.5.0-11.5.1-11.5.1-1build1 |
None known |
azure-uamqp-pythonUbuntu:24.04:LTS |
All versions, plus listed versions 1.6.5-11.6.5-1build11.6.5-21.6.8-11.6.8-21.6.8-2build1 |
None known |
azure-uamqp-pythonUbuntu:25.10 |
All versions, plus listed versions 1.6.11-1build2 |
None known |
azure-uamqp-pythonUbuntu:26.10 |
All versions, plus listed versions 1.6.11-2build11.6.11-2build2 |
None known |
azure-uamqp-pythonUbuntu:26.04:LTS |
All versions, plus listed versions 1.6.11-1build21.6.11-21.6.11-2build1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-27099 is a critical vulnerability (CVSS 9.8) in Azure Azure-uamqp-c, published February 27, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.42%, the 72nd percentile. Fixed in azure-iot-sdk-c 2022.01.21-3.
References
github.com/Azure/azure-uamqp-c/security/advisories/GHSA-6rh4-fj44-v4jj
nvd.nist.gov/vuln/detail/CVE-2024-27099
security-tracker.debian.org/tracker/CVE-2024-27099
suse.com/support/update/announcement/2024/suse-su-20240947-1