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Debian Security Advisory DSA-5472-1: Critical cjose Decryption Flaw

debian
Calendar Grey August 8, 2023
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Important announcement regarding the AES GCM decryption vulnerability in cjose for Debian platforms. Solutions are provided for every version.
It was discovered that an incorrect implementation of AES GCM decryption in cjose, a C library implementing the JOSE standard may allow an attacker to provide a truncated Authentic...

Summary

It was discovered that an incorrect implementation of AES GCM decryption
in cjose, a C library implementing the JOSE standard may allow an attacker
to provide a truncated Authentication Tag and modify the JWE object.

For the oldstable distribution (bullseye), this problem has been fixed
in version 0.6.1+dfsg1-1+deb11u1.

For the stable distribution (bookworm), this problem has been fixed in
version 0.6.2.1-1+deb12u1.

We recommend that you upgrade your cjose packages.

For the detailed security status of cjose please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/cjose

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/



Severity
critical
Lowest
Low
Medium
High
Critical

Package: cjose
CVE ID: CVE-2023-37464

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