These are the Ubuntu security notices that affect the current supported releases of Ubuntu. These notices are also posted to the ubuntu-security-announce mailing list (list archive). To report a security vulnerability in an Ubuntu package, please contact the Ubuntu Security Team. You may also be interested in learning about Ubuntu security policies. For more details on a specific CVE or source package, please see the Ubuntu CVE Tracker.

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Latest notices

USN-3629-2: MySQL vulnerabilities

USN-3629-1 fixed a vulnerability in MySQL. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: Multiple security issues were discovered in MySQL and this update includes new upstream MySQL versions to fix these issues. MySQL has been updated to 5.5.60 in Ubuntu 12.04 ESM. In addition to security…

25 April 2018 | ubuntu-12.04-esm

USN-3634-1: PackageKit vulnerability

Matthias Gerstner discovered that PackageKit incorrectly handled authentication. A local attacker could possibly use this issue to install arbitrary packages and escalate privileges.

24 April 2018 | ubuntu-17.10

USN-3633-1: Linux kernel (Intel Euclid) vulnerability

Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel improperly performed sign extension in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

24 April 2018 | ubuntu-16.04-lts

USN-3632-1: Linux kernel (Azure) vulnerabilities

It was discovered that a race condition leading to a use-after-free vulnerability existed in the ALSA PCM subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-0861) It was discovered that the KVM implementation in the Linux kernel…

24 April 2018 | ubuntu-16.04-lts

USN-3631-2: Linux kernel (Xenial HWE) vulnerabilities

USN-3631-1 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 LTS. It was discovered that a buffer overread vulnerability existed in the keyring subsystem of the Linux kernel. A local attacker could…

24 April 2018 | ubuntu-14.04-lts

USN-3631-1: Linux kernel vulnerabilities

It was discovered that a buffer overread vulnerability existed in the keyring subsystem of the Linux kernel. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2017-13305) It was discovered that the DM04/QQBOX USB driver in the Linux kernel did not properly handle device attachment and warm-start. A…

24 April 2018 | ubuntu-16.04-lts

USN-3630-2: Linux kernel (HWE) vulnerability

USN-3630-1 fixed a vulnerability in the Linux kernel for Ubuntu 17.10. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 17.10 for Ubuntu 16.04 LTS. It was discovered that the Broadcom UniMAC MDIO bus controller driver in the Linux kernel did not properly validate device resources. A…

24 April 2018 | ubuntu-16.04-lts

USN-3630-1: Linux kernel vulnerability

It was discovered that the Broadcom UniMAC MDIO bus controller driver in the Linux kernel did not properly validate device resources. A local attacker could use this to cause a denial of service (system crash).

23 April 2018 | ubuntu-17.10

USN-3629-1: MySQL vulnerabilities

Multiple security issues were discovered in MySQL and this update includes new upstream MySQL versions to fix these issues. MySQL has been updated to 5.5.60 in Ubuntu 14.04 LTS. Ubuntu 16.04 LTS, and Ubuntu 17.10 have been updated to MySQL 5.7.22. In addition to security fixes, the updated packages contain bug fixes, new features, and possibly…

23 April 2018 | ubuntu-17.10, ubuntu-16.04-lts, ubuntu-14.04-lts

USN-3628-2: OpenSSL vulnerability

USN-3628-1 fixed a vulnerability in OpenSSL. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: Alejandro Cabrera Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia discovered that OpenSSL incorrectly handled RSA key generation. An attacker could possibly use this issue to…

19 April 2018 | ubuntu-12.04-esm