ubuntu-usn

USN-3520-1: PySAML2 vulnerability Ubuntu Security Notice USN-3520-1 8th January, 2018 python-pysaml2 vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.10 Ubuntu 17.04 Ubuntu 16.04 LTS Summary PySAML2 could allow authentication without a password. Software description python-pysaml2 – Pure python implementation of SAML2 Details It was discovered that PySAML2 incorrectly accepted any password when runwith python optimizations enabled. An attacker could use this issue toauthenticate as any user without a valid password. Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 17.10: python-pysaml2 3.0.0-3ubuntu2.2 python3-pysaml2 3.0.0-3ubuntu2.2 Ubuntu 17.04: python-pysaml2 3.0.0-3ubuntu1.17.04.3 python3-pysaml2 3.0.0-3ubuntu1.17.04.3 Ubuntu 16.04 LTS: python-pysaml2 3.0.0-3ubuntu1.16.04.3 python3-pysaml2 3.0.0-3ubuntu1.16.04.3 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. In general, a standard system update will make all the necessary changes. References CVE-2017-1000433 Source: USN-3520-1: PySAML2 vulnerability

USN-3517-1: poppler vulnerabilities Ubuntu Security Notice USN-3517-1 8th January, 2018 poppler vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.10 Ubuntu 17.04 Ubuntu 16.04 LTS Ubuntu 14.04 LTS Summary Several security issues were fixed in poppler. Software description poppler – PDF rendering library Details It was discovered that poppler incorrectly handled certain files.If a user or automated system were tricked into opening a crafted PDFfile, an attacker could execute arbitrary. (CVE-2017-1000456) It was discovered that poppler incorrectly handled certain files.If a user or automated system were tricked into opening a crafted PDFfile, an attacker could cause a denial of service. This issue onlyaffected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2017-14976) Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 17.10: libpoppler68 0.57.0-2ubuntu4.2 poppler-utils 0.57.0-2ubuntu4.2 [ more… ]

USN-3516-1: Firefox vulnerabilities Ubuntu Security Notice USN-3516-1 5th January, 2018 firefox vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.10 Ubuntu 17.04 Ubuntu 16.04 LTS Ubuntu 14.04 LTS Summary Firefox could be made to expose sensitive information. Software description firefox – Mozilla Open Source web browser Details It was discovered that speculative execution performed by modern CPUscould leak information through a timing side-channel attack, and thatthis could be exploited in web browser JavaScript engines. If a user weretricked in to opening a specially crafted website, an attacker couldpotentially exploit this to obtain sensitive information from otherdomains, bypassing same-origin restrictions. (CVE-2017-5715,CVE-2017-5753, CVE-2017-5754). Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 17.10: firefox 57.0.4+build1-0ubuntu0.17.10.1 Ubuntu 17.04: firefox 57.0.4+build1-0ubuntu0.17.04.1 Ubuntu 16.04 LTS: firefox 57.0.4+build1-0ubuntu0.16.04.1 Ubuntu 14.04 LTS: firefox 57.0.4+build1-0ubuntu0.14.04.1 [ more… ]

USN-3515-1: Ruby vulnerability Ubuntu Security Notice USN-3515-1 4th January, 2018 ruby1.9.1, ruby2.0, ruby2.3 vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.10 Ubuntu 17.04 Ubuntu 16.04 LTS Ubuntu 14.04 LTS Summary Ruby could be made to execute arbitrary commands if opened a specially crafted file. Software description ruby1.9.1 – Object-oriented scripting language ruby2.0 – Object-oriented scripting language ruby2.3 – Interpreter of object-oriented scripting language Ruby Details It was discovered that Ruby allows FTP command injection.An attacker could use this to cause arbitrary command execution. Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 17.10: libruby2.3 2.3.3-1ubuntu1.1 ruby2.3 2.3.3-1ubuntu1.1 Ubuntu 17.04: libruby2.3 2.3.3-1ubuntu0.3 ruby2.3 2.3.3-1ubuntu0.3 Ubuntu 16.04 LTS: libruby2.3 2.3.1-2~16.04.4 ruby2.3 2.3.1-2~16.04.4 Ubuntu 14.04 LTS: libruby2.0 2.0.0.484-1ubuntu2.5 ruby1.9.1 1.9.3.484-2ubuntu1.6 libruby1.9.1 1.9.3.484-2ubuntu1.6 ruby1.9.3 1.9.3.484-2ubuntu1.6 ruby2.0 2.0.0.484-1ubuntu2.5 To update your [ more… ]

USN-3430-3: Dnsmasq regression Ubuntu Security Notice USN-3430-3 4th January, 2018 dnsmasq regression A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.04 LTS Summary USN-3430-2 introduced regression in Dnsmasq. Software description dnsmasq – Small caching DNS proxy and DHCP/TFTP server Details USN-3430-2 fixed several vulnerabilities. The update introduced a newregression that breaks DNS resolution. This update addresses the problem. We apologize for the inconvenience. Original advisory details: Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled DNS requests. A remote attacker could use this issue to cause Dnsmasq to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2017-14491) Felix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher discovered that Dnsmasq incorrectly handled IPv6 router advertisements. A remote attacker could use this issue to cause Dnsmasq to [ more… ]