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Fencer Vulns
critical 9.8

CVE-2024-27099 json

Azure IoT Platform Device SDK Double Free Vulnerability

published 2024-02-27 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-24351

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits
0
none known

Summary

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.

Patch / fix

  • microsoft azure_uamqp 2023-2-08
  • azure-uamqp-python Debian 14, Debian 13 1.6.8-2

debian advisories DEBIAN-CVE-2024-27099

  • python-uamqp SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4, SLE Module for Public Cloud 15 SP3 +2 more 1.5.3-150100.4.18.1

suse advisories SUSE-SU-2024:0947-1

  • azure-iot-sdk-c CBL-Mariner 2.0 2022.01.21-3
  • azure-iot-sdk-c Azure Linux 3.0 2024.03.04-1

azure linux advisories AZL-35447AZL-35471

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-27099 updated cvss 6.0

python-uamqp-azure: Double free at link.c

  • Red Hat Ansible Automation Platform 2 python-uamqp, python3x-uamqp
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
2 y ago

Exploit prediction

1.42% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Azure azure-uamqp-c
  • microsoft azure_uamqp

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.