USN-3645-1: Firefox vulnerabilities

Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, bypass same-origin restrictions, conduct cross-site scripting XSS attacks, install...

USN-3581-2: Linux kernel (HWE) vulnerabilities

USN-3581-1 fixed vulnerabilities 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. Mohamed Ghannam discovered that the IPv4 raw socket implementation in the Linux kernel contain...

USN-3477-4: Firefox regression

USN-3477-1 fixed vulnerabilities in Firefox. The update introduced a crash reporting issue where background tab crash reports were sent to Mozilla without user opt-in. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Multiple security issues were...

USN-3509-1: Linux kernel vulnerabilities

Mohamed Ghannam discovered that a use-after-free vulnerability existed in the Netlink subsystem XFRM in the Linux kernel. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2017-16939 It was discovered that the Linux kernel did not...

USN-3444-2: Linux kernel (Xenial HWE) vulnerabilities

USN-3444-1 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. Jan H. Schönherr discovered that the Xen subsystem did not properly handle block IO...

USN-3414-2: QEMU regression

USN-3414-1 fixed vulnerabilities in QEMU. The patch backport for CVE-2017-9375 was incomplete and caused a regression in the USB xHCI controller emulation support. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Leo Gaspard discovered that QEMU...

USN-3349-1: NTP vulnerabilities

Yihan Lian discovered that NTP incorrectly handled certain large request data values. A remote attacker could possibly use this issue to cause NTP to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS. CVE-2016-2519 Miroslav Lichvar discovered that NTP incorrectly...

USN-3331-1: Linux kernel (AWS) vulnerability

It was discovered that the stack guard page for processes in the Linux kernel was not sufficiently large enough to prevent overlapping with the heap. An attacker could leverage this with another vulnerability to execute arbitrary code and gain administrative privileges...

USN-3313-1: Linux kernel vulnerability

It was discovered that a buffer overflow existed in the trace subsystem in the Linux kernel. A privileged local attacker could use this to execute arbitrary code...

USN-3291-3: Linux kernel (Xenial HWE) vulnerabilities

USN-3291-1 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. Dmitry Vyukov discovered that the generic SCSI sg subsystem in the Linux kernel...

USN-3249-2: Linux kernel (Xenial HWE) vulnerability

USN-3249-1 fixed a vulnerability 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 the xfrm framework for transforming packets in the Linux kernel...

USN-3199-1: Python Crypto vulnerability

It was discovered that the ALGnew function in blocktemplace.c in the Python Cryptography Toolkit contained a heap-based buffer overflow vulnerability. A remote attacker could use this flaw to execute arbitrary code by using a crafted initialization vector parameter...

USN-3125-1: QEMU vulnerabilities

Zhenhao Hong discovered that QEMU incorrectly handled the Virtio module. A privileged attacker inside the guest could use this issue to cause QEMU to consume resources, resulting in a denial of service. CVE-2016-5403 Li Qiang discovered that QEMU incorrectly handled VMWARE VMXNET3 network card...

USN-3103-1: DBD::mysql vulnerabilities

It was discovered that DBD::mysql incorrectly handled certain memory operations. A remote attacker could use this issue to cause DBD::mysql to crash, resulting in a denial of service, or possibly execute arbitrary code. CVE-2014-9906 Hanno Böck discovered that DBD::mysql incorrectly handled certa...

USN-3016-4: Linux kernel (Xenial HWE) vulnerabilities

USN-3016-1 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. Jesse Hertz and Tim Newsham discovered that the Linux netfilter implementation did not...

USN-2997-1: Linux kernel (OMAP4) vulnerabilities

Jann Horn discovered that eCryptfs improperly attempted to use the mmap handler of a lower filesystem that did not implement one, causing a recursive page fault to occur. A local unprivileged attacker could use to cause a denial of service system crash or possibly execute arbitrary code with...

USN-2977-1: Linux kernel (Vivid HWE) vulnerability

Philip Pettersson discovered that the Linux kernel's ASN.1 DER decoder did not properly process certificate files with tags of indefinite length. A local unprivileged attacker could use this to cause a denial of service system crash or possibly execute arbitrary code with administrative privilege...

USN-2930-1: Linux kernel vulnerabilities

Ben Hawkes discovered that the Linux netfilter implementation did not correctly perform validation when handling IPTSOSETREPLACE events. A local unprivileged attacker could use this to cause a denial of service system crash or possibly execute arbitrary code with administrative privileges...

USN-2907-2: Linux kernel (Trusty HWE) vulnerabilities

halfdog discovered that OverlayFS, when mounting on top of a FUSE mount, incorrectly propagated file attributes, including setuid. A local unprivileged attacker could use this to gain privileges. CVE-2016-1576 halfdog discovered that OverlayFS in the Linux kernel incorrectly propagated security...

USN-2855-2: Samba regression

USN-2855-1 fixed vulnerabilities in Samba. The upstream fix for CVE-2015-5252 introduced a regression in certain specific environments. This update fixes the problem. Original advisory details: Thilo Uttendorfer discovered that the Samba LDAP server incorrectly handled certain packets. A remote...

USN-2887-2: Linux kernel (Trusty HWE) vulnerabilities

It was discovered that a use-after-free vulnerability existed in the AFUNIX implementation in the Linux kernel. A local attacker could use crafted epollctl calls to cause a denial of service system crash or expose sensitive information. CVE-2013-7446 It was discovered that the KVM implementation ...

USN-2870-1: Linux kernel vulnerability

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 privilege...

USN-2843-3: Linux kernel (Raspberry Pi 2) vulnerabilities

郭永刚 discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl on /dev/ppp could cause a denial of service system crash. CVE-2015-7799 Dmitry Vyukov discovered that the Linux kernel's keyring...

USN-2843-2: Linux kernel (Wily HWE) vulnerabilities

Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service system crash in the host OS. CVE-2015-8104 郭永刚 discovered that the pp...

USN-2824-1: Linux kernel (Utopic HWE) vulnerability

Dmitry Vyukov discovered that the Linux kernel's keyring handler attempted to garbage collect incompletely instantiated keys. A local unprivileged attacker could use this to cause a denial of service system crash...

USN-2682-1: Linux kernel (Utopic HWE) vulnerabilities

A flaw was discovered in the kvm kernel virtual machine subsystem's kvmapichasevents function. A unprivileged local user could exploit this flaw to cause a denial of service system crash. CVE-2015-4692 A flaw was discovered in how the Linux kernel handles invalid UDP checksums. A remote attacker...

USN-2678-1: Linux kernel vulnerabilities

A flaw was discovered in the user space memory copying for the pipe iovecs in the Linux kernel. An unprivileged local user could exploit this flaw to cause a denial of service system crash or potentially escalate their privileges. CVE-2015-1805 Daniel Borkmann reported a kernel crash in the Linux...

USN-2666-1: Linux kernel vulnerabilities

A race condition was discovered in the Linux kernel's filehandle size verification. A local user could exploit this flaw to read potentially sensative memory locations. CVE-2015-1420 A underflow error was discovered in the Linux kernel's Ozmo Devices USB over WiFi host controller driver. A remote...

USN-2665-1: Linux kernel (Vivid HWE) vulnerabilities

A race condition was discovered in the Linux kernel's filehandle size verification. A local user could exploit this flaw to read potentially sensative memory locations. CVE-2015-1420 A underflow error was discovered in the Linux kernel's Ozmo Devices USB over WiFi host controller driver. A remote...

USN-2601-1: Linux kernel vulnerability

A race condition between chown and execve was discovered in the Linux kernel. A local attacker could exploit this race by using chown on a setuid-user-binary to gain administrative privileges...

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-2516-2: Linux kernel vulnerability regression

USN-2516-1 fixed vulnerabilities in the Linux kernel. 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 was discovered in the Kernel Virtual...

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-2467-1: Linux kernel (Utopic HWE) vulnerabilities

A null pointer dereference flaw was discovered in the the Linux kernel's SCTP implementation when ASCONF is used. A remote attacker could exploit this flaw to cause a denial of service system crash via a malformed INIT chunk. CVE-2014-7841 A race condition with MMIO and PIO transactions in the KV...

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-2357-1: Linux kernel (OMAP4) 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-2319-2: OpenJDK 7 regression

USN-2319-1 fixed vulnerabilities in OpenJDK 7. Due to an upstream regression, verifying of the init method call would fail when it was done from inside a branch when stack frames are activated. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Several...

USN-2270-1: Linux kernel (Raring HWE) vulnerability

Andy Lutomirski discovered a flaw with the Linux kernel's ptrace syscall on x8664 processors. An attacker could exploit this flaw to cause a denial of service System Crash or potential gain administrative privileges...

USN-2264-1: Linux kernel vulnerabilities

Salva Peiró discovered an information leak in the Linux kernel's media- device driver. A local attacker could exploit this flaw to obtain sensitive information from kernel memory. CVE-2014-1739 A bounds check error was discovered in the socket filter subsystem of the Linux kernel. A local user...

USN-2230-1: chkrootkit vulnerability

Thomas Stangner discovered that chkrootkit incorrectly quoted certain values. A local attacker could use this issue to execute arbitrary code when chkrootkit is run and gain root privileges...

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-2178-1: Linux kernel vulnerabilities

A flaw was discovered in the Kernel Virtual Machine KVM subsystem of the Linux kernel. A guest OS user could exploit this flaw to execute arbitrary code on the host OS. CVE-2014-0049 Al Viro discovered an error in how CIFS in the Linux kernel handles uncached write operations. An unprivileged loc...

USN-2115-1: Linux kernel (OMAP4) vulnerabilities

Vasily Kulikov reported a flaw in the Linux kernel's implementation of ptrace. An unprivileged local user could exploit this flaw to obtain sensitive information from kernel memory. CVE-2013-2929 A flaw in the handling of memory regions of the kernel virtual machine KVM subsystem was discovered. ...

USN-2096-1: Linux kernel vulnerability

Pageexec reported a bug in the Linux kernel's recvmmsg syscall when called from code using the x32 ABI. An unprivileged local user could exploit this flaw to cause a denial of service system crash or gain administrator privileges...

USN-2045-1: Linux kernel 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 Alan Chester reported a flaw in the IPv6 Stream Control Transmission Protocol SCTP of the Linux kernel. A...

USN-2018-1: Linux kernel (OMAP4) vulnerabilities

A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service by creating a large number of files with names that have the same CRC32 hash value. CVE-2012-5374 A denial of service flaw was discovered in the Btrfs file system in...

USN-1835-1: Linux kernel vulnerabilities

A buffer overflow vulnerability was discovered in the Broadcom tg3 ethernet driver for the Linux kernel. A local user could exploit this flaw to cause a denial of service crash the system or potentially escalate privileges on the system. CVE-2013-1929 A flaw was discovered in the Linux kernel's...

USN-1825-1: Linux kernel vulnerability

An flaw was discovered in the Linux kernel's perfevents interface. A local user could exploit this flaw to escalate privileges on the system...

USN-1824-1: Linux kernel vulnerabilities

Mathias Krause discovered an information leak in the Linux kernel's ISO 9660 CDROM file system driver. A local user could exploit this flaw to examine some of the kernel's heap memory. CVE-2012-6549 Mathias Krause discovered a flaw in xfrmuser in the Linux kernel. A local attacker with NETADMIN...

USN-1808-1: Linux kernel (EC2) vulnerabilities

Mathias Krause discovered an information leak in the Linux kernel's getsockname implementation for Logical Link Layer llc sockets. A local user could exploit this flaw to examine some of the kernel's stack memory. CVE-2012-6542 Mathias Krause discovered information leaks in the Linux kernel's...