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Ubuntu 24.10 Security Notice 7472-1: Micropython Critical Update

ubuntu
Calendar Grey May 1, 2025
Dist Ubuntu Esm H88
Examining resolved vulnerabilities in Micropython for Ubuntu provides essential insights into its security and stability, highlighting past issues like buffer overflows and memory management
Several security issues were fixed in micropython.

Summary

Several security issues were fixed in micropython.

Software Description:

- micropython: Implementation of Python 3.x on microcontrollers and small embedded systems.

Details:

Junwha Hong and Wonil Jang discovered that Micropython incorrectly handled

the length of a buffer in mp_vfs_umount, leading to a heap-based buffer

overflow vulnerability. If a user or automated system were tricked into

opening a specially crafted file, an attacker could possibly use this issue

to cause a denial of service or possibly execute arbitrary code.

(CVE-2024-8946)

Junwha Hong and Wonil Jang discovered that Micropython incorrectly handled

memory, leading to a use-after-free vulnerability under certain

circumstances. If a user or automated system were tricked into opening a

specially crafted file, an attacker could possibly use this issue to

cause a denial of service or possibly execute arbitrary code.

(CVE-2024-8947)

It was discovered that Middleware USB Host MCU Component i...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow Ubuntu memory issue micropython

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 24.10
   micropython                     1.22.1+ds-1ubuntu0.24.10.1

Ubuntu 24.04 LTS
   micropython                     1.22.1+ds-1ubuntu0.24.04.1~esm1
                                   Available with Ubuntu Pro

Ubuntu 22.04 LTS
   micropython                     1.17+ds-1.1ubuntu2+esm1
                                   Available with Ubuntu Pro

Ubuntu 20.04 LTS
   micropython                     1.12-1ubuntu0.1~esm1
                                   Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-7472-1

CVE-2021-42553, CVE-2024-8946, CVE-2024-8947

Severity
critical
Lowest
Low
Medium
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Critical

Ubuntu Security Notice USN-7472-1

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow Ubuntu memory issue micropython

Package Information

https://launchpad.net/ubuntu/+source/micropython/1.22.1+ds-1ubuntu0.24.10.1

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