Security
Headlines
HeadlinesLatestCVEs

Headline

Ubuntu Security Notice USN-6307-1

Ubuntu Security Notice 6307-1 - 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 or might expose sensitive information.

Packet Storm
#vulnerability#ubuntu#dos#c++#auth

=========================================================================
Ubuntu Security Notice USN-6307-1
August 24, 2023

cjose vulnerability

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

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

Related news

Debian Security Advisory 5472-1

Debian Linux Security Advisory 5472-1 - 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.

Red Hat Security Advisory 2023-4417-01

Red Hat Security Advisory 2023-4417-01 - CJose is C library implementing the Javascript Object Signing and Encryption.

Red Hat Security Advisory 2023-4418-01

Red Hat Security Advisory 2023-4418-01 - The mod_auth_openidc is an OpenID Connect authentication module for Apache HTTP Server. It enables an Apache HTTP Server to operate as an OpenID Connect Relying Party and/or OAuth 2.0 Resource Server.

RHSA-2023:4429: Red Hat Security Advisory: mod_auth_openidc:2.3 security update

An update for the mod_auth_openidc:2.3 module is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2023-37464: A vulnerability was found in cjose. The 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 JSON Web Encryption (JWE). A fixed length of ...

Red Hat Security Advisory 2023-4409-01

Red Hat Security Advisory 2023-4409-01 - The mod_auth_openidc is an OpenID Connect authentication module for Apache HTTP Server. It enables an Apache HTTP Server to operate as an OpenID Connect Relying Party and/or OAuth 2.0 Resource Server.

RHSA-2023:4418: Red Hat Security Advisory: mod_auth_openidc:2.3 security update

An update for the mod_auth_openidc:2.3 module is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2023-37464: A vulnerability was found in cjose. The 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 JSON Web Encryption (JWE). A fixed length of 16 octets must be applied. This flaw...

RHSA-2023:4417: Red Hat Security Advisory: cjose security update

An update for cjose is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2023-37464: A vulnerability was found in cjose. The 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 JSON Web Encryption (JWE). A fixed length of 16 octets must be applied. This flaw...

RHSA-2023:4410: Red Hat Security Advisory: mod_auth_openidc:2.3 security update

An update for the mod_auth_openidc:2.3 module is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Telecommunications Update Service, and Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2023-37464: A vulnerability was found in cjose. The cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). The AES GCM decryption routine incorre...

RHSA-2023:4408: Red Hat Security Advisory: mod_auth_openidc:2.3 security update

An update for the mod_auth_openidc:2.3 module is now available for Red Hat Enterprise Linux 8.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2023-37464: A vulnerability was found in cjose. The 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 JSON Web Encryption (JWE). A fixed length of 16 octets ...

CVE-2023-37464: incorrect Authentication Tag length usage in AES GCM decryption

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).

Packet Storm: Latest News

CUPS IPP Attributes LAN Remote Code Execution