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Ubuntu Security Notice USN-6629-3

Ubuntu Security Notice USN-6629-3
Posted Feb 15, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6629-3 - USN-6629-1 fixed vulnerabilities in UltraJSON. This update provides the corresponding updates for Ubuntu 20.04 LTS. It was discovered that UltraJSON incorrectly handled certain input with a large amount of indentation. An attacker could possibly use this issue to crash the program, resulting in a denial of service. Jake Miller discovered that UltraJSON incorrectly decoded certain characters. An attacker could possibly use this issue to cause key confusion and overwrite values in dictionaries. It was discovered that UltraJSON incorrectly handled an error when reallocating a buffer for string decoding. An attacker could possibly use this issue to corrupt memory.

tags | advisory, denial of service, vulnerability
systems | linux, ubuntu
advisories | CVE-2021-45958, CVE-2022-31116, CVE-2022-31117
SHA-256 | 50be04630cf03d8f15f815dd6a94344ba4a09eeb74709bbf0914315704d4157c

Ubuntu Security Notice USN-6629-3

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-6629-3
February 14, 2024

ujson vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS (Available with Ubuntu Pro)

Summary:

Several security issues were fixed in UltraJSON.

Software Description:
- ujson: ultra fast JSON encoder and decoder for Python 3

Details:

USN-6629-1 fixed vulnerabilities in UltraJSON.
This update provides the corresponding updates for Ubuntu 20.04 LTS.

Original advisory details:

It was discovered that UltraJSON incorrectly handled certain input with
a large amount of indentation. An attacker could possibly use this issue
to crash the program, resulting in a denial of service. (CVE-2021-45958)

Jake Miller discovered that UltraJSON incorrectly decoded certain
characters. An attacker could possibly use this issue to cause key
confusion and overwrite values in dictionaries. (CVE-2022-31116)

It was discovered that UltraJSON incorrectly handled an error when
reallocating a buffer for string decoding. An attacker could possibly
use this issue to corrupt memory. (CVE-2022-31117)

Update instructions:

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

Ubuntu 20.04 LTS (Available with Ubuntu Pro):
python3-ujson 1.35-4ubuntu0.1+esm1

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

References:
https://ubuntu.com/security/notices/USN-6629-3
https://ubuntu.com/security/notices/USN-6629-1
CVE-2022-31116, CVE-2022-31117

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