Ubuntu Security Notice 6578-1 - Vishal Mishra and Anita Gaud discovered that .NET did not properly validate X.509 certificates with malformed signatures. An attacker could possibly use this issue to bypass an application's typical authentication logic. Morgan Brown discovered that .NET did not properly handle requests from unauthenticated clients. An attacker could possibly use this issue to cause a denial of service.
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Debian Linux Security Advisory 5598-1 - A security issue was discovered in Chromium, which could result in the execution of arbitrary code, denial of service, or information disclosure.
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Ubuntu Security Notice 6560-2 - USN-6560-1 fixed several vulnerabilities in OpenSSH. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Fabian Bäumer, Marcus Brinkmann, Joerg Schwenk discovered that the SSH protocol was vulnerable to a prefix truncation attack. If a remote attacker was able to intercept SSH communications, extension negotiation messages could be truncated, possibly leading to certain algorithms and features being downgraded. This issue is known as the Terrapin attack. This update adds protocol extensions to mitigate this issue.
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Ubuntu Security Notice 6579-1 - It was discovered that Xerces-C++ was not properly handling memory management operations when parsing XML data containing external DTDs, which could trigger a use-after-free error. If a user or automated system were tricked into processing a specially crafted XML document, an attacker could possibly use this issue to cause a denial of service or execute arbitrary code.
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WordPress POST SMTP Mailer plugin versions 2.8.7 and below suffer from authorization bypass and cross site scripting vulnerabilities.
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Ubuntu Security Notice 6574-1 - Takeshi Kaneko discovered that Go did not properly handle comments and special tags in the script context of html/template module. An attacker could possibly use this issue to inject Javascript code and perform a cross site scripting attack. This issue only affected Go 1.20 in Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 23.04. It was discovered that Go did not properly validate the "//go:cgo_" directives during compilation. An attacker could possibly use this issue to inject arbitrary code during compile time.
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Ubuntu Security Notice 6562-2 - USN-6562-1 fixed vulnerabilities in Firefox. The update introduced several minor regressions. This update fixes the problem. Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. DoHyun Lee discovered that Firefox did not properly manage memory when used on systems with the Mesa VM driver. An attacker could potentially exploit this issue to execute arbitrary code. George Pantela and Hubert Kario discovered that Firefox using multiple NSS NIST curves which were susceptible to a side-channel attack known as "Minerva". An attacker could potentially exploit this issue to obtain sensitive information. Andrew Osmond discovered that Firefox did not properly validate the textures produced by remote decoders. An attacker could potentially exploit this issue to escape the sandbox.
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Ubuntu Security Notice 6577-1 - Jana Hofmann, Emanuele Vannacci, Cedric Fournet, Boris Kopf, and Oleksii Oleksenko discovered that some AMD processors could leak stale data from division operations in certain situations. A local attacker could possibly use this to expose sensitive information. It was discovered that a race condition existed in the Linux kernel when performing operations with kernel objects, leading to an out-of-bounds write. A local attacker could use this to cause a denial of service or execute arbitrary code.
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Ubuntu Security Notice 6575-1 - It was discovered that Twisted incorrectly escaped host headers in certain 404 responses. A remote attacker could possibly use this issue to perform HTML and script injection attacks. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. It was discovered that Twisted incorrectly handled response order when processing multiple HTTP requests. A remote attacker could possibly use this issue to delay responses and manipulate the responses of second requests.
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SimpleWebServer version 2.2-rc2 remote denial of service exploit.
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PHPJabbers Event Ticketing System version 1.0 suffers from a missing rate limiting vulnerability.
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PHPJabbers Meeting Room Booking System version 1.0 suffers from a CSV injection vulnerability.
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PHPJabbers Meeting Room Booking System version 1.0 suffers from multiple persistent cross site scripting vulnerabilities.
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PHPJabbers Event Ticketing System version 1.0 suffers from cross site scripting and html injection vulnerabilities.
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Ubuntu Security Notice 6576-1 - Lonial Con discovered that the netfilter subsystem in the Linux kernel did not properly handle an expired catchall element in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.
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Ubuntu Security Notice 6549-5 - It was discovered that the USB subsystem in the Linux kernel contained a race condition while handling device descriptors in certain situations, leading to a out-of-bounds read vulnerability. A local attacker could possibly use this to cause a denial of service. Lin Ma discovered that the Netlink Transformation subsystem in the Linux kernel did not properly initialize a policy data structure, leading to an out-of-bounds vulnerability. A local privileged attacker could use this to cause a denial of service or possibly expose sensitive information.
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Ubuntu Security Notice 6548-5 - It was discovered that Spectre-BHB mitigations were missing for Ampere processors. A local attacker could potentially use this to expose sensitive information. It was discovered that the USB subsystem in the Linux kernel contained a race condition while handling device descriptors in certain situations, leading to a out-of-bounds read vulnerability. A local attacker could possibly use this to cause a denial of service.
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PHPJabbers Cinema Booking System version 1.0 suffers from a missing rate limiting vulnerability.
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PHPJabbers Cinema Booking System version 1.0 suffers from a CSV injection vulnerability.
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PHPJabbers Meeting Room Booking System version 1.0 suffers from a missing rate limiting vulnerability.
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PHPJabbers Cleaning Business Software version 1.0 suffers from a CSV injection vulnerability.
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PHPJabbers Cinema Booking System version 1.0 suffers from reflective and persistent cross site scripting vulnerabilities.
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PHPJabbers Cleaning Business Software version 1.0 suffers from multiple persistent cross site scripting vulnerabilities.
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PHPJabbers Cleaning Business Software version 1.0 suffers from multiple missing rate limiting vulnerabilities.
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PHPJabbers Shared Asset Booking System version 1.0 suffers from multiple persistent cross site scripting vulnerabilities.
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