USN-2778-1: Linux kernel (Vivid HWE) vulnerabilities

It was discovered that the Linux kernel did not check if a new IPv6 MTU set by a user space application was valid. A remote attacker could forge a route advertisement with an invalid MTU that a user space daemon like NetworkManager would honor and apply to the kernel, causing a denial of service...

USN-2745-1: QEMU vulnerabilities

Lian Yihan discovered that QEMU incorrectly handled certain payload messages in the VNC display driver. A malicious guest could use this issue to cause the QEMU process to hang, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. CVE-2015-5239 Qinghao...

USN-2728-1: Bind vulnerability

Hanno Böck discovered that Bind incorrectly handled certain malformed keys when configured to perform DNSSEC validation. A remote attacker could use this issue with specially crafted zone data to cause Bind to crash, resulting in a denial of service...

USN-2727-1: GnuTLS vulnerabilities

It was discovered that GnuTLS incorrectly handled parsing CRL distribution points. A remote attacker could possibly use this issue to cause a denial of service, or execute arbitrary code. CVE-2015-3308 Kurt Roeckx discovered that GnuTLS incorrectly handled a long DistinguishedName DN entry in a...

USN-2672-1: NSS vulnerabilities

Karthikeyan Bhargavan discovered that NSS incorrectly handled state transitions for the TLS state machine. If a remote attacker were able to perform a machine-in-the-middle attack, this flaw could be exploited to skip the ServerKeyExchange message and remove the forward-secrecy property...

USN-2652-1: Oxide vulnerabilities

It was discovered that Chromium did not properly consider the scheme when determining whether a URL is associated with a WebUI SiteInstance. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to bypass security restrictions. CVE-2015-1266 ...

USN-2626-1: Qt vulnerabilities

Wolfgang Schenk discovered that Qt incorrectly handled certain malformed GIF images. If a user or automated system were tricked into opening a specially crafted GIF image, a remote attacker could use this issue to cause Qt to crash, resulting in a denial of service. This issue only applied to...

USN-2592-1: XML::LibXML vulnerability

Tilmann Haak discovered that XML::LibXML incorrectly handled the expandentities parameter in certain situations. A remote attacker could possibly use this issue to access sensitive information...

USN-2562-1: Linux kernel (Trusty HWE) vulnerabilities

Sun Baoliang discovered a use after free flaw in the Linux kernel's SCTP Stream Control Transmission Protocol subsystem during INIT collisions. A remote attacker could exploit this flaw to cause a denial of service system crash or potentially escalate their privileges on the system. CVE-2015-1421...

USN-2550-1: Firefox vulnerabilities

Olli Pettay and Boris Zbarsky discovered an issue during anchor navigations in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to bypass same-origin policy restrictions. CVE-2015-0801 Bobby Holley discovered that...

USN-2516-3: Linux kernel vulnerabilities regression

USN-2516-1 fixed vulnerabilities in the Linux kernel, and the fix in USN-2516-2 was incomplete. There was an unrelated regression in the use of the virtual counter CNTVCT on arm64 architectures. This update fixes the problem. We apologize for the inconvenience. Original advisory details: A flaw w...

USN-2515-1: Linux kernel (Trusty HWE) vulnerabilities

A flaw was discovered in the Kernel Virtual Machine's KVM emulation of the SYSTENTER instruction when the guest OS does not initialize the SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of service of the guest OS crash or potentially gain privileges on the guest OS...

USN-2511-1: Linux kernel vulnerabilities

A race condition was discovered in the Linux kernel's key ring. A local user could cause a denial of service memory corruption or panic or possibly have unspecified impact via the keyctl commands. CVE-2014-9529 A memory leak was discovered in the ISO 9660 CDROM file system when parsing rock ridge...

USN-2479-1: RPM vulnerabilities

Florian Weimer discovered that RPM incorrectly handled temporary files. A local attacker could use this issue to execute arbitrary code. CVE-2013-6435 Florian Weimer discovered that RPM incorrectly handled certain CPIO headers. If a user or automated system were tricked into installing a maliciou...

USN-2394-1: Linux kernel (Trusty HWE) vulnerabilities

Nadav Amit reported that the KVM Kernel Virtual Machine mishandles noncanonical addresses when emulating instructions that change the rip Instruction Pointer. A guest user with access to I/O or the MMIO can use this flaw to cause a denial of service system crash of the guest. CVE-2014-3647 A flaw...

USN-2385-1: OpenSSL vulnerabilities

It was discovered that OpenSSL incorrectly handled memory when parsing DTLS SRTP extension data. A remote attacker could possibly use this issue to cause OpenSSL to consume resources, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. CVE-2014-3513 I...

USN-2378-1: Linux kernel (Trusty HWE) vulnerabilities

Steven Vittitoe reported multiple stack buffer overflows in Linux kernel's magicmouse HID driver. A physically proximate attacker could exploit this flaw to cause a denial of service system crash or possibly execute arbitrary code via specially crafted devices. CVE-2014-3181 Ben Hawkes reported...

USN-2359-1: Linux kernel vulnerabilities

Jack Morgenstein reported a flaw in the page handling of the KVM Kerenl Virtual Machine subsystem in the Linux kernel. A guest OS user could exploit this flaw to cause a denial of service host OS memory corruption or possibly have other unspecified impact on the host OS. CVE-2014-3601 Jason...

USN-2356-1: Linux kernel vulnerabilities

Jack Morgenstein reported a flaw in the page handling of the KVM Kerenl Virtual Machine subsystem in the Linux kernel. A guest OS user could exploit this flaw to cause a denial of service host OS memory corruption or possibly have other unspecified impact on the host OS. CVE-2014-3601 Chris Evans...

USN-2326-1: Oxide vulnerabilities

A use-after-free was discovered in the SVG 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...

USN-2232-4: OpenSSL regression

USN-2232-1 fixed vulnerabilities in OpenSSL. One of the patch backports for Ubuntu 10.04 LTS caused a regression for certain applications. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Jüri Aedla discovered that OpenSSL incorrectly handled invalid...

USN-2308-1: OpenSSL vulnerabilities

Adam Langley and Wan-Teh Chang discovered that OpenSSL incorrectly handled certain DTLS packets. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service. CVE-2014-3505 Adam Langley discovered that OpenSSL incorrectly handled memory when processing DTLS...

USN-2275-1: DBus vulnerabilities

Alban Crequy discovered that dbus-daemon incorrectly sent AccessDenied errors to the service instead of the client when enforcing permissions. A local user can use this issue to possibly deny access to the service. CVE-2014-3477 Alban Crequy discovered that dbus-daemon incorrectly handled certain...

USN-2262-1: Linux kernel (Quantal HWE) vulnerabilities

A bounds check error was discovered in the socket filter subsystem of the Linux kernel. A local user could exploit this flaw to cause a denial of service system crash via crafted BPF instructions. CVE-2014-3144 A remainder calculation error was discovered in the socket filter subsystem of the Lin...

USN-2219-1: Linux kernel vulnerabilities

Matthew Daley reported an information leak in the floppy disk driver of the Linux kernel. An unprivileged local user could exploit this flaw to obtain potentially sensitive information from kernel memory. CVE-2014-1738 Matthew Daley reported a flaw in the handling of ioctl commands by the floppy...

USN-2214-1: libxml2 vulnerability

Daniel Berrange discovered that libxml2 would incorrectly perform entity substitution even when requested not to. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly cause resource consumption, resulting in a denial of service...

USN-2200-1: Linux kernel (Raring HWE) vulnerability

A flaw was discovered in the Linux kernel's pseudo tty pty device. An unprivileged user could exploit this flaw to cause a denial of service system crash or potentially gain administrator privileges...

USN-2137-1: Linux kernel (Saucy HWE) vulnerabilities

An information leak was discovered in the Linux kernel when built with the NetFilter Connection Tracking NFCONNTRACK support for IRC protocol NFNATIRC. A remote attacker could exploit this flaw to obtain potentially sensitive kernel information when communicating over a client- to-client IRC...

USN-2098-1: LibYAML vulnerability

Florian Weimer discovered that LibYAML incorrectly handled certain large yaml documents. An attacker could use this issue to cause LibYAML to crash, resulting in a denial of service, or possibly execute arbitrary code...

USN-2072-1: Linux kernel (OMAP4) vulnerabilities

Dave Jones and Vince Weaver reported a flaw in the Linux kernel's per event subsystem that allows normal users to enable function tracing. An unprivileged local user could exploit this flaw to obtain potentially sensitive information from the kernel. CVE-2013-2930 Stephan Mueller reported an erro...

USN-2061-1: OpenStack Keystone vulnerability

Steven Hardy discovered that Keystone did not properly enforce trusts when using the ec2tokens API. An authenticated attacker could exploit this to retrieve a token not scoped to the trust and elevate privileges to the trustor's roles...

USN-2046-1: Linux kernel (OMAP4) vulnerabilities

A flaw was discovered in the Linux kernel's dm snapshot facility. A remote authenticated user could exploit this flaw to obtain sensitive information or modify/corrupt data. CVE-2013-4299 Hannes Frederic Sowa discovered a flaw in the Linux kernel's UDP Fragmentation Offload UFO. An unprivileged...

USN-2016-1: Linux kernel (EC2) vulnerabilities

Dan Carpenter discovered an information leak in the HP Smart Array and Compaq SMART2 disk-array driver in the Linux kernel. A local user could exploit this flaw to obtain sensitive information from kernel memory. CVE-2013-2147 Kees Cook discovered flaw in the Human Interface Device HID subsystem...

USN-1936-1: Linux kernel (Raring HWE) vulnerabilities

Chanam Park reported a Null pointer flaw in the Linux kernel's Ceph client. A remote attacker could exploit this flaw to cause a denial of service system crash. CVE-2013-1059 An information leak was discovered in the Linux kernel's fanotify interface. A local user could exploit this flaw to obtai...

USN-1930-1: Linux kernel (OMAP4) vulnerabilities

An information leak was discovered in the Linux kernel's fanotify interface. A local user could exploit this flaw to obtain sensitive information from kernel memory. CVE-2013-2148 Kees Cook discovered a format string vulnerability in the Broadcom B43 wireless driver for the Linux kernel. A local...

USN-1918-1: Linux kernel (OMAP4) vulnerability

Kees Cook discovered a format string vulnerability in the Broadcom B43 wireless driver for the Linux kernel. A local user could exploit this flaw to gain administrative privileges...

USN-1913-1: Linux kernel (EC2) vulnerabilities

Jonathan Salwan discovered an information leak in the Linux kernel's cdrom driver. A local user can exploit this leak to obtain sensitive information from kernel memory if the CD-ROM drive is malfunctioning. CVE-2013-2164 A flaw was discovered in the Linux kernel when an IPv6 socket is used to...

USN-1912-1: Linux kernel vulnerabilities

Jonathan Salwan discovered an information leak in the Linux kernel's cdrom driver. A local user can exploit this leak to obtain sensitive information from kernel memory if the CD-ROM drive is malfunctioning. CVE-2013-2164 A flaw was discovered in the Linux kernel when an IPv6 socket is used to...

USN-1876-1: Linux kernel vulnerabilities

Andrew Honig reported a flaw in the way KVM Kernel-based Virtual Machine emulated the IOAPIC. A privileged guest user could exploit this flaw to read host memory or cause a denial of service crash the host. CVE-2013-1798 An information leak was discovered in the Linux kernel's rcvmsg path for ATM...

USN-1794-1: Linux kernel (OMAP4) vulnerabilities

Emese Revfy discovered that in the Linux kernel signal handlers could leak address information across an exec, making it possible to by pass ASLR Address Space Layout Randomization. A local user could use this flaw to by pass ASLR to reliably deliver an exploit payload that would otherwise be...

USN-1743-1: Linux kernel (Quantal HWE) vulnerability

Suleiman Souhlal, Salman Qazi, Aaron Durbin and Michael Davidson discovered a race condition in the Linux kernel's ptrace syscall. An unprivileged local attacker could exploit this flaw to run programs as an administrator. CVE-2013-0871 A flaw was discovered in the Edgeort USB serial converter...

USN-1704-2: Linux kernel (Quantal HWE) regression

USN-1704-1 fixed vulnerabilities in the Linux kernel. Due to an unrelated regression inotify/fanotify stopped working after upgrading. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Brad Spengler discovered a flaw in the Linux kernel's uname system...

USN-1688-1: Linux kernel (Oneiric backport) vulnerabilities

Jon Howell reported a flaw in the Linux kernel's KVM Kernel-based virtual machine subsystem's handling of the XSAVE feature. On hosts, using qemu userspace, without the XSAVE feature an unprivileged local attacker could exploit this flaw to crash the system. CVE-2012-4461 A flaw was discovered in...

USN-1638-3: Firefox regressions

USN-1638-1 fixed vulnerabilities in Firefox. The new packages introduced regressions in cookies handling and the User Agent string. This update fixes the problem. Original advisory details: Gary Kwong, Jesse Ruderman, Christian Holler, Bob Clary, Kyle Huey, Ed Morley, Chris Lord, Boris Zbarsky,...

USN-1650-1: Linux kernel vulnerability

Rodrigo Freire discovered a flaw in the Linux kernel's TCP illinois congestion control algorithm. A local attacker could use this to cause a denial of service...

USN-1504-1: Qt vulnerabilities

It was discovered that Qt did not properly handle wildcard domain names or IP addresses in the Common Name field of X.509 certificates. An attacker could exploit this to perform a machine-in-the-middle attack to view sensitive information or alter encrypted communications. This issue only affecte...

USN-1473-1: Linux kernel vulnerabilities

A flaw was discovered in the Linux kernel's KVM kernel virtual machine. An administrative user in the guest OS could leverage this flaw to cause a denial of service in the host OS. CVE-2012-2121 Schacher Raindel discovered a flaw in the Linux kernel's memory handling when hugetlb is enabled. An...

USN-1448-1: Linux kernel vulnerabilities

A flaw was found in the Linux kernel's KVM Kernel Virtual Machine virtual cpu setup. An unprivileged local user could exploit this flaw to crash the system leading to a denial of service. CVE-2012-1601 Steve Grubb reported a flaw with Linux fscaps file system base capabilities when used to increa...

USN-1433-1: Linux kernel (Oneiric backport) vulnerabilities

A flaw was found in the Linux's kernels ext4 file system when mounted with a journal. A local, unprivileged user could exploit this flaw to cause a denial of service. CVE-2011-4086 Sasha Levin discovered a flaw in the permission checking for device assignments requested via the kvm ioctl in the...

USN-1430-2: ubufox update

USN-1430-1 fixed vulnerabilities in Firefox. This update provides an updated ubufox package for use with the latest Firefox. Original advisory details: Bob Clary, Christian Holler, Brian Hackett, Bobby Holley, Gary Kwong, Hilary Hall, Honza Bambas, Jesse Ruderman, Julian Seward, and Olli Pettay...