1. Ubuntu Security Notices
  2. USN-6629-1

USN-6629-1: UltraJSON vulnerabilities

Publication date

14 February 2024

Overview

Several security issues were fixed in UltraJSON.

Releases

Packages

  • ujson - ultra fast JSON encoder and decoder for Python 2

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)

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
22.04 jammy python3-ujson –  5.1.0-1ubuntu0.1~esm1  
18.04 bionic python-ujson –  1.35-2ubuntu0.1~esm1  
python3-ujson –  1.35-2ubuntu0.1~esm1  
16.04 xenial python-ujson –  1.33-1ubuntu0.1~esm2  
python3-ujson –  1.33-1ubuntu0.1~esm2  

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References

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