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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

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.

Topics%20covered

Topics Covered

security advisory denial of service ubuntu service issue crash cjose c-library

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

Topics%20covered

Topics Covered

security advisory denial of service ubuntu service issue crash cjose c-library

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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