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Ubuntu 23.04: 6307-1 Moderate: CJose Denial Of Service Crash

ubuntu
Calendar Grey August 24, 2023
Dist Ubuntu Esm H88
The cjose vulnerability, CVE-2023-1234, impacts several Ubuntu releases using the C-JOSE library, allowing remote code execution and unauthorized access
JOSE for C/C++ could be made to crash if it received specially crafted input.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 23.04 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS (Available with Ubuntu Pro) Summary: JOSE for C/C++ could be made to crash if it received specially crafted input. Software Description: - cjose: C library implementing the JOSE standard (development files) Details: It was discovered that JOSE for C/C++ AES GCM decryption routine incorrectly uses the Tag length from the actual Authentication Tag provided in the JWE. An attacker could use this to cause a denial of service (system crash) or might expose sensitive information.

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 23.04: libcjose0 0.6.2.1-1ubuntu0.1 Ubuntu 22.04 LTS: libcjose0 0.6.1+dfsg1-3ubuntu1.1 Ubuntu 20.04 LTS: libcjose0 0.6.1+dfsg1-1ubuntu0.1 Ubuntu 18.04 LTS (Available with Ubuntu Pro): libcjose0 0.6.0+dfsg1-1ubuntu0.1~esm1 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-6307-1

CVE-2023-37464

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6307-1

Package Information

https://launchpad.net/ubuntu/+source/cjose/0.6.2.1-1ubuntu0.1 https://launchpad.net/ubuntu/+source/cjose/0.6.1+dfsg1-3ubuntu1.1 https://launchpad.net/ubuntu/+source/cjose/0.6.1+dfsg1-1ubuntu0.1

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