Ubuntu security notices

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 file a bug, or contact security@ubuntu.com. 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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USN-2887-1: Linux kernel vulnerabilities - 1st February 2016

It was discovered that a use-after-free vulnerability existed in the AF_UNIX implementation in the Linux kernel. A local attacker could use crafted epoll_ctl calls to cause a denial of service (system crash) or expose sensitive information. (CVE-2013-7446) It was discovered that the KVM implementation in the Linux kernel did not ...

CVE-2013-7446 CVE-2015-7513 CVE-2015-7990 CVE-2015-8374

USN-2886-2: Linux kernel (OMAP4) vulnerabilities - 1st February 2016

It was discovered that a use-after-free vulnerability existed in the AF_UNIX implementation in the Linux kernel. A local attacker could use crafted epoll_ctl calls to cause a denial of service (system crash) or expose sensitive information. (CVE-2013-7446) It was discovered that the KVM implementation in the Linux kernel did not ...

CVE-2013-7446 CVE-2015-7513 CVE-2015-7799 CVE-2015-7990 CVE-2015-8374 CVE-2015-8543 CVE-2015-8550 CVE-2015-8569 CVE-2015-8575 CVE-2015-8785

USN-2886-1: Linux kernel vulnerabilities - 1st February 2016

It was discovered that a use-after-free vulnerability existed in the AF_UNIX implementation in the Linux kernel. A local attacker could use crafted epoll_ctl calls to cause a denial of service (system crash) or expose sensitive information. (CVE-2013-7446) It was discovered that the KVM implementation in the Linux kernel did not ...

CVE-2013-7446 CVE-2015-7513 CVE-2015-7799 CVE-2015-7990 CVE-2015-8374 CVE-2015-8543 CVE-2015-8569 CVE-2015-8575 CVE-2015-8785

USN-2885-1: OpenJDK 6 vulnerabilities - 1st February 2016

Multiple vulnerabilities were discovered in the OpenJDK JRE related to information disclosure, data integrity, and availability. An attacker could exploit these to cause a denial of service, expose sensitive data over the network, or possibly execute arbitrary code. (CVE-2016-0483, CVE-2016-0494) A vulnerability was discovered in the OpenJDK JRE related to ...

CVE-2016-0402 CVE-2016-0448 CVE-2016-0466 CVE-2016-0483 CVE-2016-0494

USN-2884-1: OpenJDK 7 vulnerabilities - 1st February 2016

Multiple vulnerabilities were discovered in the OpenJDK JRE related to information disclosure, data integrity, and availability. An attacker could exploit these to cause a denial of service, expose sensitive data over the network, or possibly execute arbitrary code. (CVE-2016-0483, CVE-2016-0494) A vulnerability was discovered in the OpenJDK JRE related to ...

CVE-2015-7575 CVE-2016-0402 CVE-2016-0448 CVE-2016-0466 CVE-2016-0483 CVE-2016-0494

USN-2883-1: OpenSSL vulnerability - 28th January 2016

Antonio Sanso discovered that OpenSSL reused the same private DH exponent for the life of a server process when configured with a X9.42 style parameter file. This could allow a remote attacker to possibly discover the server's private DH exponent when being used with non-safe primes.

CVE-2016-0701

USN-2882-1: curl vulnerability - 27th January 2016

Isaac Boukris discovered that curl could incorrectly re-use NTLM proxy credentials when subsequently connecting to the same host.

CVE-2016-0755

USN-2877-1: Oxide vulnerabilities - 27th January 2016

A bad cast was discovered in V8. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via renderer crash or execute arbitrary code with the privileges of the sandboxed render process. (CVE-2016-1612) An issue was ...

CVE-2016-1612 CVE-2016-1614 CVE-2016-1617 CVE-2016-1618 CVE-2016-1620 CVE-2016-2051 CVE-2016-2052

USN-2880-1: Firefox vulnerabilities - 27th January 2016

Bob Clary, Christian Holler, Nils Ohlmeier, Gary Kwong, Jesse Ruderman, Carsten Book, Randell Jesup, Nicolas Pierron, Eric Rescorla, Tyson Smith, and Gabor Krizsanits discovered multiple memory safety issues in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause ...

CVE-2016-1930 CVE-2016-1931 CVE-2016-1933 CVE-2016-1935 CVE-2016-1937 CVE-2016-1938 CVE-2016-1939 CVE-2016-1942 CVE-2016-1944 CVE-2016-1945 CVE-2016-1946 CVE-2016-1947

USN-2881-1: MySQL vulnerabilities - 26th January 2016

Multiple security issues were discovered in MySQL and this update includes new upstream MySQL versions to fix these issues. MySQL has been updated to 5.5.47 in Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. Ubuntu 15.04 and Ubuntu 15.10 have been updated to MySQL 5.6.28. In addition to security fixes, the ...

CVE-2016-0503 CVE-2016-0504 CVE-2016-0505 CVE-2016-0546 CVE-2016-0595 CVE-2016-0596 CVE-2016-0597 CVE-2016-0598 CVE-2016-0600 CVE-2016-0606 CVE-2016-0607 CVE-2016-0608 CVE-2016-0609 CVE-2016-0610 CVE-2016-0611 CVE-2016-0616

USN-2879-1: rsync vulnerability - 21st January 2016

It was discovered that rsync incorrectly handled invalid filenames. A malicious server could use this issue to write files outside of the intended destination directory.

CVE-2014-9512

USN-2878-1: Perl vulnerability - 21st January 2016

David Golden discovered that the canonpath function in the Perl File::Spec module did not properly preserve the taint attribute. An attacker could possibly use this issue to bypass the taint protection mechanism.

CVE-2015-8607

USN-2876-1: eCryptfs vulnerability - 20th January 2016

Jann Horn discovered that mount.ecryptfs_private would mount over certain directories in the proc filesystem. A local attacker could use this to escalate their privileges. (CVE-2016-1572)

CVE-2016-1572

USN-2875-1: libxml2 vulnerabilities - 19th January 2016

It was discovered that libxml2 incorrectly handled certain malformed documents. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly cause libxml2 to crash, resulting in a denial of service.

CVE-2015-7499 CVE-2015-8710

USN-2874-1: Bind vulnerability - 19th January 2016

It was discovered that Bind incorrectly handled certain APL data. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service.

CVE-2015-8704

USN-2870-2: Linux kernel (Trusty HWE) vulnerability - 19th January 2016

Yevgeny Pats discovered that the session keyring implementation in the Linux kernel did not properly reference count when joining an existing session keyring. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges.

CVE-2016-0728

USN-2872-3: Linux kernel (Raspberry Pi 2) vulnerability - 19th January 2016

Yevgeny Pats discovered that the session keyring implementation in the Linux kernel did not properly reference count when joining an existing session keyring. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges.

CVE-2016-0728

USN-2872-2: Linux kernel (Wily HWE) vulnerability - 19th January 2016

Yevgeny Pats discovered that the session keyring implementation in the Linux kernel did not properly reference count when joining an existing session keyring. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges.

CVE-2016-0728

USN-2871-2: Linux kernel (Vivid HWE) vulnerability - 19th January 2016

Yevgeny Pats discovered that the session keyring implementation in the Linux kernel did not properly reference count when joining an existing session keyring. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges.

CVE-2016-0728

USN-2873-1: Linux kernel (Utopic HWE) vulnerability - 19th January 2016

Yevgeny Pats discovered that the session keyring implementation in the Linux kernel did not properly reference count when joining an existing session keyring. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges.

CVE-2016-0728

USN-2872-1: Linux kernel vulnerability - 19th January 2016

Yevgeny Pats discovered that the session keyring implementation in the Linux kernel did not properly reference count when joining an existing session keyring. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges.

CVE-2016-0728

USN-2871-1: Linux kernel vulnerability - 19th January 2016

Yevgeny Pats discovered that the session keyring implementation in the Linux kernel did not properly reference count when joining an existing session keyring. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges.

CVE-2016-0728

USN-2870-1: Linux kernel vulnerability - 19th January 2016

Yevgeny Pats discovered that the session keyring implementation in the Linux kernel did not properly reference count when joining an existing session keyring. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges.

CVE-2016-0728

USN-2869-1: OpenSSH vulnerabilities - 14th January 2016

It was discovered that the OpenSSH client experimental support for resuming connections contained multiple security issues. A malicious server could use this issue to leak client memory to the server, including private client user keys.

CVE-2016-0777 CVE-2016-0778

USN-2859-1: Thunderbird vulnerabilities - 13th January 2016

Andrei Vaida, Jesse Ruderman, Bob Clary, and Jesse Ruderman discovered multiple memory safety issues in Thunderbird. If a user were tricked in to opening a specially crafted message, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges ...

CVE-2015-7201 CVE-2015-7205 CVE-2015-7212 CVE-2015-7213 CVE-2015-7214

USN-2868-1: DHCP vulnerability - 13th January 2016

Sebastian Poehn discovered that the DHCP server, client, and relay incorrectly handled certain malformed UDP packets. A remote attacker could use this issue to cause the DHCP server, client, or relay to stop responding, resulting in a denial of service.

CVE-2015-8605

USN-2867-1: libvirt vulnerabilities - 12th January 2016

It was discovered that libvirt incorrectly handled the firewall rules on bridge networks when the daemon was restarted. This could result in an unintended firewall configuration. This issue only applied to Ubuntu 12.04 LTS. (CVE-2011-4600) Peter Krempa discovered that libvirt incorrectly handled locking when certain ACL checks failed. A local ...

CVE-2011-4600 CVE-2014-8136 CVE-2015-0236 CVE-2015-5247 CVE-2015-5313

USN-2860-1: Oxide vulnerabilities - 11th January 2016

A race condition was discovered in the MutationObserver implementation in Blink. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via renderer crash, or execute arbitrary code with the privileges of the sandboxed render process. ...

CVE-2015-6789 CVE-2015-6790 CVE-2015-6791 CVE-2015-8548 CVE-2015-8664

USN-2866-1: Firefox vulnerability - 8th January 2016

Karthikeyan Bhargavan and Gaetan Leurent discovered that NSS incorrectly allowed MD5 to be used for TLS 1.2 connections. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to view sensitive information.

CVE-2015-7575

USN-2865-1: GnuTLS vulnerability - 8th January 2016

Karthikeyan Bhargavan and Gaetan Leurent discovered that GnuTLS incorrectly allowed MD5 to be used for TLS 1.2 connections. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to view sensitive information.

CVE-2015-7575

USN-2864-1: NSS vulnerability - 7th January 2016

Karthikeyan Bhargavan and Gaetan Leurent discovered that NSS incorrectly allowed MD5 to be used for TLS 1.2 connections. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to view sensitive information.

CVE-2015-7575

USN-2863-1: OpenSSL vulnerability - 7th January 2016

Karthikeyan Bhargavan and Gaetan Leurent discovered that OpenSSL incorrectly allowed MD5 to be used for TLS 1.2 connections. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to view sensitive information.

CVE-2015-7575

USN-2862-1: Pygments vulnerability - 7th January 2016

It was discovered that Pygments incorrectly sanitized strings used to search system fonts. An attacker could possibly use this issue to execute arbitrary code.

CVE-2015-8557

USN-2861-1: libpng vulnerabilities - 6th January 2016

It was discovered that libpng incorrectly handled certain small bit-depth values. If a user or automated system using libpng were tricked into opening a specially crafted image, an attacker could exploit this to cause a denial of service or execute code with the privileges of the user invoking the program. ...

CVE-2015-8472 CVE-2015-8540

USN-2858-3: Linux kernel (Raspberry Pi 2) vulnerability - 5th January 2016

Nathan Williams discovered that overlayfs in the Linux kernel incorrectly handled setattr operations. A local unprivileged attacker could use this to create files with administrative permission attributes and execute arbitrary code with elevated privileges.

CVE-2015-8660

USN-2858-2: Linux kernel (Wily HWE) vulnerability - 5th January 2016

Nathan Williams discovered that overlayfs in the Linux kernel incorrectly handled setattr operations. A local unprivileged attacker could use this to create files with administrative permission attributes and execute arbitrary code with elevated privileges.

CVE-2015-8660

USN-2858-1: Linux kernel vulnerability - 5th January 2016

Nathan Williams discovered that overlayfs in the Linux kernel incorrectly handled setattr operations. A local unprivileged attacker could use this to create files with administrative permission attributes and execute arbitrary code with elevated privileges.

CVE-2015-8660

USN-2857-2: Linux kernel (Vivid HWE) vulnerability - 5th January 2016

Nathan Williams discovered that overlayfs in the Linux kernel incorrectly handled setattr operations. A local unprivileged attacker could use this to create files with administrative permission attributes and execute arbitrary code with elevated privileges.

CVE-2015-8660

USN-2857-1: Linux kernel vulnerability - 5th January 2016

Nathan Williams discovered that overlayfs in the Linux kernel incorrectly handled setattr operations. A local unprivileged attacker could use this to create files with administrative permission attributes and execute arbitrary code with elevated privileges.

CVE-2015-8660

USN-2856-1: ldb vulnerabilities - 5th January 2016

Thilo Uttendorfer discovered that the ldb incorrectly handled certain zero values. A remote attacker could use this issue to cause applications using ldb, such as Samba, to stop responding, resulting in a denial of service. (CVE-2015-3223) Douglas Bagnall discovered that ldb incorrectly handled certain string lengths. A remote attacker could ...

CVE-2015-3223 CVE-2015-5330

USN-2855-1: Samba vulnerabilities - 5th January 2016

Thilo Uttendorfer discovered that the Samba LDAP server incorrectly handled certain packets. A remote attacker could use this issue to cause the LDAP server to stop responding, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 15.04 and Ubuntu 15.10. (CVE-2015-3223) Jan Kasprzak discovered that ...

CVE-2015-3223 CVE-2015-5252 CVE-2015-5296 CVE-2015-5299 CVE-2015-5330 CVE-2015-7540 CVE-2015-8467

USN-2854-1: Linux kernel (Vivid HWE) vulnerabilities - 20th December 2015

Felix Wilhelm discovered a race condition in the Xen paravirtualized drivers which can cause double fetch vulnerabilities. An attacker in the paravirtualized guest could exploit this flaw to cause a denial of service (crash the host) or potentially execute arbitrary code on the host. (CVE-2015-8550) Konrad Rzeszutek Wilk discovered the ...

CVE-2015-8550 CVE-2015-8551 CVE-2015-8552 CVE-2015-8709

USN-2853-1: Linux kernel (Wily HWE) vulnerabilities - 20th December 2015

Felix Wilhelm discovered a race condition in the Xen paravirtualized drivers which can cause double fetch vulnerabilities. An attacker in the paravirtualized guest could exploit this flaw to cause a denial of service (crash the host) or potentially execute arbitrary code on the host. (CVE-2015-8550) Konrad Rzeszutek Wilk discovered the ...

CVE-2015-8550 CVE-2015-8551 CVE-2015-8552 CVE-2015-8709

USN-2852-1: Linux kernel (Raspberry Pi 2) vulnerability - 19th December 2015

Jann Horn discovered a ptrace issue with user namespaces in the Linux kernel. The namespace owner could potentially exploit this flaw by ptracing a root owned process entering the user namespace to elevate its privileges and potentially gain access outside of the namespace. (http://bugs.launchpad.net/bugs/1527374, CVE-2015-8709)

CVE-2015-8709

USN-2851-1: Linux kernel vulnerabilities - 19th December 2015

Felix Wilhelm discovered a race condition in the Xen paravirtualized drivers which can cause double fetch vulnerabilities. An attacker in the paravirtualized guest could exploit this flaw to cause a denial of service (crash the host) or potentially execute arbitrary code on the host. (CVE-2015-8550) Konrad Rzeszutek Wilk discovered the ...

CVE-2015-8550 CVE-2015-8551 CVE-2015-8552 CVE-2015-8709

USN-2850-1: Linux kernel vulnerabilities - 19th December 2015

Felix Wilhelm discovered a race condition in the Xen paravirtualized drivers which can cause double fetch vulnerabilities. An attacker in the paravirtualized guest could exploit this flaw to cause a denial of service (crash the host) or potentially execute arbitrary code on the host. (CVE-2015-8550) Konrad Rzeszutek Wilk discovered the ...

CVE-2015-8550 CVE-2015-8551 CVE-2015-8552 CVE-2015-8709

USN-2849-1: Linux kernel (Utopic HWE) vulnerabilities - 19th December 2015

Felix Wilhelm discovered a race condition in the Xen paravirtualized drivers which can cause double fetch vulnerabilities. An attacker in the paravirtualized guest could exploit this flaw to cause a denial of service (crash the host) or potentially execute arbitrary code on the host. (CVE-2015-8550) Konrad Rzeszutek Wilk discovered the ...

CVE-2015-8550 CVE-2015-8551 CVE-2015-8552 CVE-2015-8709

USN-2848-1: Linux kernel vulnerabilities - 19th December 2015

Felix Wilhelm discovered a race condition in the Xen paravirtualized drivers which can cause double fetch vulnerabilities. An attacker in the paravirtualized guest could exploit this flaw to cause a denial of service (crash the host) or potentially execute arbitrary code on the host. (CVE-2015-8550) Konrad Rzeszutek Wilk discovered the ...

CVE-2015-8550 CVE-2015-8551 CVE-2015-8552 CVE-2015-8709

USN-2847-1: Linux kernel (Trusty HWE) vulnerabilities - 19th December 2015

Felix Wilhelm discovered a race condition in the Xen paravirtualized drivers which can cause double fetch vulnerabilities. An attacker in the paravirtualized guest could exploit this flaw to cause a denial of service (crash the host) or potentially execute arbitrary code on the host. (CVE-2015-8550) Konrad Rzeszutek Wilk discovered the ...

CVE-2015-8550 CVE-2015-8551 CVE-2015-8552 CVE-2015-8709

USN-2846-1: Linux kernel vulnerabilities - 19th December 2015

Felix Wilhelm discovered a race condition in the Xen paravirtualized drivers which can cause double fetch vulnerabilities. An attacker in the paravirtualized guest could exploit this flaw to cause a denial of service (crash the host) or potentially execute arbitrary code on the host. (CVE-2015-8550) Konrad Rzeszutek Wilk discovered the ...

CVE-2015-8550 CVE-2015-8551 CVE-2015-8552

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