USN-4301-1: Linux kernel vulnerabilities

It was discovered that the KVM implementation in the Linux kernel, when paravirtual TLB flushes are enabled in guests, the hypervisor in some situations could miss deferred TLB flushes or otherwise mishandle them. An attacker in a guest VM could use this to expose sensitive information read memor...

USN-4309-1 vim vulnerabilities

It was discovered that Vim incorrectly handled certain sources. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM and Ubuntu 16.04 LTS CVE-2017-11109 It was discovered that Vim incorrectly handled certain files. An...

USN-4307-1: Apache HTTP Server update

As a security improvement, this update adds TLSv1.3 support to the Apache HTTP Server package in Ubuntu 18.04 LTS. TLSv1.3 is enabled by default, and in certain environments may cause compatibility issues. The SSLProtocol directive may be used to disable TLSv1.3 in these problematic environments...

USN-4306-1: Dino vulnerabilities

It was discovered that Dino incorrectly validated inputs. An attacker could use this issue to possibly obtain, inject or remove sensitive information. This update also includes a fix to the encryption implementation in Dino to support 12 byte IVs, in addition to 16 byte IVs...

USN-4305-1: ICU vulnerability

André Bargull discovered that ICU incorrectly handled certain strings. An attacker could possibly use this issue to execute arbitrary code...

USN-4303-1: Linux kernel vulnerability

Paulo Bonzini discovered that the KVM hypervisor implementation in the Linux kernel could improperly let a nested level 2 guest access the resources of a parent level 1 guest in certain situations. An attacker could use this to expose sensitive information...

USN-4303-2: Linux kernel (HWE) vulnerability

USN-4303-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 ESM. Paulo Bonzini discovered that the KVM hypervisor implementation in the Linux kernel...

USN-4298-1: SQLite vulnerabilities

It was discovered that SQLite incorrectly handled certain shadow tables. An attacker could use this issue to cause SQLite to crash, resulting in a denial of service, or possibly execute arbitrary code. CVE-2019-13734, CVE-2019-13750, CVE-2019-13753 It was discovered that SQLite incorrectly handle...

USN-4297-1: runC vulnerabilities

It was discovered that runC incorrectly checked mount targets. An attacker with a malicious container image could possibly mount over the /proc directory and escalate privileges. This issue only affected Ubuntu 18.04 LTS. CVE-2019-16884 It was discovered that runC incorrectly performed access...

USN-4295-1: Rake vulnerability

It was discovered that Rake incorrectly handled certain files. An attacker could use this issue to possibly execute arbitrary commands...

USN-4293-1: libarchive vulnerabilities

It was discovered that libarchive incorrectly handled certain archive files. An attacker could possibly use this issue to access sensitive information. CVE-2019-19221 It was discovered that libarchive incorrectly handled certain archive files. An attacker could possibly use this issue to cause a...

USN-4278-2: Firefox vulnerabilities

USN-4278-1 fixed vulnerabilities in Firefox. This update provides the corresponding update for Ubuntu 16.04 LTS. Original advisory details: Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit...

USN-4291-1: mod-auth-mellon vulnerability

It was discovered that modauthmellon incorrectly handled certain requests. An attacker could possibly use this issue to redirect a user to a malicious URL...

USN-4290-1: libpam-radius-auth vulnerability

It was discovered that libpam-radius-auth incorrectly handled certain long passwords. A remote attacker could possibly use this issue to cause libpam-radius-auth to crash, resulting in a denial of service...

USN-4279-2: PHP regression

USN-4279-1 fixed vulnerabilities in PHP. The updated packages caused a regression. This update fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that PHP incorrectly handled certain scripts. An attacker could possibly use this issue to cause a...

USN-4287-2: Linux kernel (Azure) vulnerabilities

USN-4287-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux kernel for Microsoft Azure Cloud systems for Ubuntu 14.04 ESM. It was discovered that the Linux kernel did not properly clear data structures on context switches...

USN-4286-1: Linux kernel vulnerabilities

It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. CVE-2019-14615 It was discovered that a race condition existed in the Softmac USB Prism54 devi...

USN-4287-1: Linux kernel vulnerabilities

It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. CVE-2019-14615 It was discovered that the Atheros 802.11ac wireless USB device driver in the...

USN-4281-1: WebKitGTK+ vulnerabilities

A large number of security issues were discovered in the WebKitGTK+ Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service...

USN-4280-1: ClamAV vulnerability

It was discovered that ClamAV incorrectly handled memory when the Data-Loss-Prevention DLP feature was enabled. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service...