Ubuntu security

USN-4084-1: Django vulnerabilities python-django vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 19.04 Ubuntu 18.04 LTS Ubuntu 16.04 LTS Summary Several security issues were fixed in Django. Software Description python-django – High-level Python web development framework Details It was discovered that Django incorrectly handled the Truncator function. A remote attacker could possibly use this issue to cause Django to consume resources, leading to a denial of service. (CVE-2019-14232) It was discovered that Django incorrectly handled the strip_tags function. A remote attacker could possibly use this issue to cause Django to consume resources, leading to a denial of service. (CVE-2019-14233) It was discovered that Django incorrectly handled certain lookups in the PostgreSQL support. A remote attacker could possibly use this issue to perform SQL injection attacks. (CVE-2019-14234) It was discovered that Django incorrectly handled certain invalid [ more… ]

USN-4069-2: Linux kernel (HWE) vulnerabilities linux-hwe vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 18.04 LTS Summary Several security issues were fixed in the Linux kernel. Software Description linux-hwe – Linux hardware enablement (HWE) kernel Details USN-4069-1 fixed vulnerabilities in the Linux kernel for Ubuntu 19.04. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 19.04 for Ubuntu 18.04 LTS. It was discovered that an integer overflow existed in the Linux kernel when reference counting pages, leading to potential use-after-free issues. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-11487) Jann Horn discovered that a race condition existed in the Linux kernel when performing core dumps. A local attacker could use this to cause a denial of service [ more… ]

USN-4082-2: Subversion vulnerabilities subversion vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.04 ESM Summary Subversion could be made to crash if it received specially crafted network traffic. Software Description subversion – Advanced version control system Details USN-4082-1 fixed several vulnerabilities in Subversion. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: Ace Olszowka discovered that Subversion incorrectly handled certain svnserve requests. A remote attacker could possibly use this issue to cause svnserver to crash, resulting in a denial of service. (CVE-2018-11782) Tomas Bortoli discovered that Subversion incorrectly handled certain svnserve requests. A remote attacker could possibly use this issue to cause svnserver to crash, resulting in a denial of service. (CVE-2019-0203) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 ESM [ more… ]

USN-4083-1: OpenJDK 11 vulnerabilities openjdk-lts vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 19.04 Ubuntu 18.04 LTS Summary Several security issues were fixed in OpenJDK 11. Software Description openjdk-lts – Open Source Java implementation Details It was discovered that OpenJDK did not sufficiently validate serial streams before deserializing suppressed exceptions in some situations. An attacker could use this to specially craft an object that, when deserialized, would cause a denial of service. (CVE-2019-2762) It was discovered that in some situations OpenJDK did not properly bound the amount of memory allocated during object deserialization. An attacker could use this to specially craft an object that, when deserialized, would cause a denial of service (excessive memory consumption). (CVE-2019-2769) It was discovered that OpenJDK did not properly restrict privileges in certain situations. An attacker could use this to [ more… ]

USN-4082-1: Subversion vulnerabilities subversion vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 16.04 LTS Summary Subversion could be made to crash if it received specially crafted network traffic. Software Description subversion – Advanced version control system Details Ace Olszowka discovered that Subversion incorrectly handled certain svnserve requests. A remote attacker could possibly use this issue to cause svnserver to crash, resulting in a denial of service. (CVE-2018-11782) Tomas Bortoli discovered that Subversion incorrectly handled certain svnserve requests. A remote attacker could possibly use this issue to cause svnserver to crash, resulting in a denial of service. (CVE-2019-0203) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS libsvn1 – 1.9.3-2ubuntu1.3 subversion – 1.9.3-2ubuntu1.3 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. In general, a standard [ more… ]