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Debian DSA-5472-1 : cjose - security update

high Nessus Plugin ID 179628

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 11 / 12 host has packages installed that are affected by a vulnerability as referenced in the dsa-5472 advisory.

 - OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). The AES GCM decryption routine incorrectly uses the Tag length from the actual Authentication Tag provided in the JWE.
 The spec says that a fixed length of 16 octets must be applied. Therefore this bug allows an attacker to provide a truncated Authentication Tag and to modify the JWE accordingly. Users should upgrade to a version >= 0.6.2.2. Users unable to upgrade should avoid using AES GCM encryption and replace it with another encryption algorithm (e.g. AES CBC). (CVE-2023-37464)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the cjose packages.

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

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1041423

https://security-tracker.debian.org/tracker/source-package/cjose

https://www.debian.org/security/2023/dsa-5472

https://security-tracker.debian.org/tracker/CVE-2023-37464

https://packages.debian.org/source/bullseye/cjose

https://packages.debian.org/source/bookworm/cjose

Plugin Details

Severity: High

ID: 179628

File Name: debian_DSA-5472.nasl

Version: 1.2

Type: local

Agent: unix

Published: 8/9/2023

Updated: 9/26/2023

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:N

CVSS Score Source: CVE-2023-37464

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libcjose0, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:libcjose-dev, cpe:/o:debian:debian_linux:12.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/8/2023

Vulnerability Publication Date: 7/14/2023

Reference Information

CVE: CVE-2023-37464