USN-4201-1: Ruby vulnerabilities

It was discovered that Ruby incorrectly handled certain files. An attacker could possibly use this issue to pass path matching what can lead to an unauthorized access. CVE-2019-15845 It was discovered that Ruby incorrectly handled certain regular expressions. An attacker could use this issue to...

USN-3768-1: Ghostscript vulnerabilities

Tavis Ormandy discovered multiple security issues in Ghostscript. If a user or automated system were tricked into processing a specially crafted file, a remote attacker could possibly use these issues to access arbitrary files, execute arbitrary code, or cause a denial of service...

USN-3731-2: LFTP vulnerability

USN-3731-1 fixed a vulnerability in LFTP. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: It was discovered that LFTP incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service...

USN-3690-1: AMD Microcode update

Jann Horn discovered that microprocessors utilizing speculative execution and branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Spectre. A local attacker could use this to expose sensitive information, including kernel memory. This update provide...

USN-3679-1: QEMU update

Ken Johnson and Jann Horn independently discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via sidechannel attacks. An attacker in the guest could use this to expose sensitive guest information, including kernel memory. This update...

USN-3576-1: libvirt vulnerabilities

Vivian Zhang and Christoph Anton Mitterer discovered that libvirt incorrectly disabled password authentication when the VNC password was set to an empty string. A remote attacker could possibly use this issue to bypass authentication, contrary to expectations. This issue only affected Ubuntu 14.0...

USN-3551-1: WebKitGTK+ vulnerabilities

Multiple security issues were discovered in the WebKitGTK+ Web and JavaScript engines. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, spoof the user interface, or execute arbitrary code. CVE-2018-4088,...

USN-3525-1: Linux kernel vulnerability

Jann Horn discovered that microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Meltdown. A local attacker could use this to expose sensitive information, including kernel memory...

USN-3518-1: AWStats vulnerability

It was discovered that AWStats incorrectly filtered certain parameters. A remote attacker could possibly use this issue to execute arbitrary code...

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-3212-3: LibTIFF vulnerabilities

USN-3212-1 and USN-3212-2 fixed a vulnerabilitiy in LibTIFF. This update provides a subset of corresponding update for Ubuntu 12.04 ESM. Original advisory details: It was discovered that LibTIFF incorrectly handled certain malformed images. If a user or automated system were tricked into opening ...

USN-3264-1: Linux kernel vulnerability

Alexander Popov discovered that a race condition existed in the Stream Control Transmission Protocol SCTP implementation in the Linux kernel. A local attacker could use this to cause a denial of service system crash...

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-3072-2: Linux kernel (OMAP4) vulnerabilities

Kangjie Lu discovered an information leak in the Reliable Datagram Sockets RDS implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. CVE-2016-5244 Yue Cao et al discovered a flaw in the TCP implementation's handling of...

USN-3056-1: Linux kernel (Raspberry Pi 2) vulnerabilities

Ben Hawkes discovered an integer overflow in the Linux netfilter implementation. On systems running 32 bit kernels, a local unprivileged attacker could use this to cause a denial of service system crash or possibly execute arbitrary code with administrative privileges. CVE-2016-3135 It was...

USN-3000-1: Linux kernel (Utopic HWE) vulnerabilities

Justin Yackoski discovered that the Atheros L2 Ethernet Driver in the Linux kernel incorrectly enables scatter/gather I/O. A remote attacker could use this to obtain potentially sensitive information from kernel memory. CVE-2016-2117 Jann Horn discovered that eCryptfs improperly attempted to use...

USN-2948-1: Linux kernel (Utopic HWE) vulnerabilities

Ralf Spenneberg discovered that the USB driver for Clie devices in the Linux kernel did not properly validate the endpoints reported by the device. An attacker with physical access could cause a denial of service system crash. CVE-2015-7566 Ralf Spenneberg discovered that the usbvision driver in...

USN-2935-3: PAM regression

USN-2935-1 fixed vulnerabilities in PAM. The updates contained a packaging change that prevented upgrades in certain multiarch environments. USN-2935-2 intended to fix the problem but was incomplete for Ubuntu 12.04 LTS. This update fixes the problem in Ubuntu 12.04 LTS. We apologize for the...

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-2889-2: Linux kernel (Vivid 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-2843-2: 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-2828-1: QEMU vulnerabilities

Jason Wang discovered that QEMU incorrectly handled the virtio-net device. A remote attacker could use this issue to cause guest network consumption, resulting in a denial of service. CVE-2015-7295 Qinghao Tang and Ling Liu discovered that QEMU incorrectly handled the pcnet driver when used in...

USN-2714-1: Linux kernel (OMAP4) vulnerabilities

Marcelo Ricardo Leitner discovered a race condition in the Linux kernel's SCTP address configuration lists when using Address Configuration Change ASCONF options on a socket. An unprivileged local user could exploit this flaw to cause a denial of service system crash. CVE-2015-3212 A flaw was...

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-2679-1: Linux kernel (OMAP4) 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-2656-1: Firefox 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-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-2651-1: GNU patch vulnerabilities

Jakub Wilk discovered that GNU patch did not correctly handle file paths in patch files. An attacker could specially craft a patch file that could overwrite arbitrary files with the privileges of the user invoking the program. This issue only affected Ubuntu 12.04 LTS. CVE-2010-4651 László...

USN-2613-1: Linux kernel (Trusty HWE) vulnerabilities

Vincent Tondellier discovered an integer overflow in the Linux kernel's netfilter connection tracking accounting of loaded extensions. An attacker on the local area network LAN could potential exploit this flaw to cause a denial of service system crash of targeted system. CVE-2014-9715 Jan Beulic...

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-2355-1: Linux kernel (EC2) vulnerabilities

Chris Evans reported an flaw in the Linux kernel's handling of iso9660 compact disk filesystem images. An attacker who can mount a custom iso9660 image either via a CD/DVD drive or a loopback mount could cause a denial of service system crash or reboot. CVE-2014-5471 Chris Evans reported an flaw ...

USN-2319-1: OpenJDK 7 vulnerabilities

Several 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 or expose sensitive data over the network. CVE-2014-2483, CVE-2014-2490, CVE-2014-4216, CVE-2014-4219,...

USN-2287-1: Linux kernel (Saucy HWE) vulnerabilities

Sasha Levin reported a flaw in the Linux kernel's point-to-point protocol PPP when used with the Layer Two Tunneling Protocol L2TP. A local user could exploit this flaw to gain administrative privileges. CVE-2014-4943 Michael S. Tsirkin discovered an information leak in the Linux kernel's...

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-2224-1: Linux kernel (Raring HWE) 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-2203-1: Linux kernel 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-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-2071-1: Linux kernel 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-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-1975-1: Linux kernel (OMAP4) vulnerabilities

Vince Weaver discovered a flaw in the perf subsystem of the Linux kernel on ARM platforms. A local user could exploit this flaw to gain privileges or cause a denial of service system crash. CVE-2013-4254 A failure to validate block numbers was discovered in the Linux kernel's implementation of th...

USN-1973-1: Linux kernel (OMAP4) vulnerabilities

Vince Weaver discovered a flaw in the perf subsystem of the Linux kernel on ARM platforms. A local user could exploit this flaw to gain privileges or cause a denial of service system crash. CVE-2013-4254 A failure to validate block numbers was discovered in the Linux kernel's implementation of th...

USN-1947-1: Linux kernel (Quantal HWE) 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-1942-1: Linux kernel (OMAP4) 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 Vasily Kulikov discovered a flaw in the Linux Kernel's perf tool that allows for privilege escalation. A local user could...

USN-1934-1: Linux kernel (OMAP4) 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-1811-1: Linux kernel (OMAP4) vulnerabilities

Mathias Krause discovered an information leak in the Linux kernel's UDF file system implementation. A local user could exploit this flaw to examine some of the kernel's heap memory. CVE-2012-6548 Mathias Krause discovered an information leak in the Linux kernel's ISO 9660 CDROM file system driver...

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...

USN-1781-1: Linux kernel (OMAP4) vulnerabilities

Andrew Jones discovered a flaw with the xeniret function in Linux kernel's Xen virtualizeation. In the 32-bit Xen paravirt platform an unprivileged guest OS user could exploit this flaw to cause a denial of service crash the system or gain guest OS privilege. CVE-2013-0228 A flaw was reported in...