Category Archives: Advisories

USN-6913-1: phpCAS vulnerability

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Filip Hejsek discovered that phpCAS was using HTTP headers to determine
the service URL used to validate tickets. A remote attacker could
possibly use this issue to gain access to a victim’s account on a
vulnerable CASified service.

This security update introduces an incompatible API change. After applying
this update, third party applications need to be modified to pass in an
additional service base URL argument when constructing the client class.

For more information please refer to the section
“Upgrading 1.5.0 -> 1.6.0” of the phpCAS upgrading document:

https://github.com/apereo/phpCAS/blob/master/docs/Upgrading

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Multiple Vulnerabilities in Google Chrome Could Allow for Arbitrary Code Execution

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Multiple vulnerabilities have been discovered in Google Chrome, the most severe of which could allow for arbitrary code execution. Successful exploitation of the most severe of these vulnerabilities could allow for arbitrary code execution in the context of the logged on user. Depending on the privileges associated with the user an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

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USN-6910-1: Apache ActiveMQ vulnerabilities

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Chess Hazlett discovered that Apache ActiveMQ incorrectly handled certain
commands. A remote attacker could possibly use this issue to terminate
the program, resulting in a denial of service. This issue only affected
Ubuntu 16.04 LTS. (CVE-2015-7559)

Peter Stöckli discovered that Apache ActiveMQ incorrectly handled
hostname verification. A remote attacker could possibly use this issue
to perform a person-in-the-middle attack. This issue only affected Ubuntu
16.04 LTS. (CVE-2018-11775)

Jonathan Gallimore and Colm Ó hÉigeartaigh discovered that Apache
ActiveMQ incorrectly handled authentication in certain functions.
A remote attacker could possibly use this issue to perform a
person-in-the-middle attack. This issue only affected Ubuntu 16.04 LTS,
Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-13920)

Gregor Tudan discovered that Apache ActiveMQ incorrectly handled
LDAP authentication. A remote attacker could possibly use this issue
to acquire unauthenticated access. This issue only affected Ubuntu 16.04
LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-26117)

It was discovered that Apache ActiveMQ incorrectly handled
authentication. A remote attacker could possibly use this issue to run
arbitrary code. (CVE-2022-41678)

It was discovered that Apache ActiveMQ incorrectly handled
deserialization. A remote attacker could possibly use this issue to run
arbitrary shell commands. (CVE-2023-46604)

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USN-6530-2: HAProxy vulnerability

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Seth Manesse and Paul Plasil discovered that HAProxy incorrectly handled
URI components containing the hash character (#). A remote attacker could
possibly use this issue to obtain sensitive information, or to bypass
certain path_end rules.

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