USN-3939-1: Samba vulnerability

Michael Hanselmann discovered that Samba incorrectly handled registry files. A remote attacker could possibly use this issue to create new registry files outside of the share, contrary to expectations...

USN-3540-1: Linux kernel vulnerabilities

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-3298-1: MiniUPnP vulnerability

It was discovered that MiniUPnP incorrectly handled memory. A remote attacker could use this issue to cause a denial of service or possibly execute arbitrary code with privileges of the user running an application that uses the MiniUPnP library...

USN-3260-2: Firefox regression

USN-3260-1 fixed vulnerabilities in Firefox. The update caused the date picker panel and form validation errors to close immediately on opening. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Multiple security issues were discovered in Firefox. If a...

USN-3256-2: Linux kernel (HWE) vulnerability

USN-3256-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 16.10. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel for each of the respective prior Ubuntu LTS releases. Andrey Konovalov discovered that the...

USN-3208-1: Linux kernel vulnerabilities

It was discovered that the generic SCSI block layer in the Linux kernel did not properly restrict write operations in certain situations. A local attacker could use this to cause a denial of service system crash or possibly gain administrative privileges. CVE-2016-10088 CAI Qian discovered that t...

USN-3107-1: Linux kernel vulnerability

It was discovered that a race condition existed in the memory manager of the Linux kernel when handling copy-on-write breakage of private read-only memory mappings. A local attacker could use this to gain administrative privileges...

USN-2971-1: Linux kernel vulnerabilities

Ralf Spenneberg discovered that the Aiptek Tablet USB device driver 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-2015-7515 Zach Riggle discovered that the Linux kernel's list...

USN-2950-3: Samba regressions

USN-2950-1 fixed vulnerabilities in Samba. The fixes introduced in Samba 4.3.8 caused certain regressions and interoperability issues. This update resolves some of these issues by updating to Samba 4.3.9 in Ubuntu 14.04 LTS, Ubuntu 15.10 and Ubuntu 16.04 LTS. Backported regression fixes were adde...

USN-2869-1: OpenSSH vulnerabilities

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...

USN-2696-1: 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-2015-2590, CVE-2015-2628, CVE-2015-4731, CVE-2015-4732,...

USN-2417-1: Linux kernel 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-1613-2: Python 2.4 vulnerabilities

USN-1613-1 fixed vulnerabilities in Python 2.5. This update provides the corresponding updates for Python 2.4. Original advisory details: It was discovered that Python would prepend an empty string to sys.path under certain circumstances. A local attacker with write access to the current working...

USN-1425-1: Linux kernel vulnerabilities

Sasha Levin discovered a flaw in the permission checking for device assignments requested via the kvm ioctl in the Linux kernel. A local user could use this flaw to crash the system causing a denial of service. CVE-2011-4347 Stephan Bärwolf discovered a flaw in the KVM kernel-based virtual machin...

USN-1296-1: acpid vulnerabilities

Oliver-Tobias Ripka discovered that an ACPI script incorrectly handled power button events. A local attacker could use this to execute arbitrary code, and possibly escalate privileges. CVE-2011-2777 Helmut Grohne and Michael Biebl discovered that ACPI scripts were executed with a permissive file...

USN-149-3: Ubuntu 4.10 update for Firefox vulnerabilities

USN-149-1 fixed some vulnerabilities in the Ubuntu 5.04 Hoary Hedgehog version of Firefox. The version shipped with Ubuntu 4.10 Warty Warthog is also vulnerable to these flaws, so it needs to be upgraded as well. Please see http://www.ubuntulinux.org/support/documentation/usn/usn-149-1 for the...

USN-7457-1: OpenSSH vulnerability

It was discovered that OpenSSH incorrectly handled the DisableForwarding directive. The directive would fail to disable X11 and agent forwarding, contrary to documentation and expectations...

USN-6955-1: Linux kernel (OEM) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM32 architecture; - ARM64 architecture; - M68K architecture; - OpenRISC architecture; - PowerPC architecture; -...

USN-6549-3: Linux kernel (Low Latency) vulnerabilities

It was discovered that the USB subsystem in the Linux kernel contained a race condition while handling device descriptors in certain situations, leading to a out-of-bounds read vulnerability. A local attacker could possibly use this to cause a denial of service system crash. CVE-2023-37453 Lin Ma...

USN-6474-1: xrdp vulnerabilities

It was discovered that xrdp incorrectly handled validation of client-supplied data, which could lead to out-of-bounds reads. An attacker could possibly use this issue to crash the program or extract sensitive information. CVE-2022-23479, CVE-2022-23481, CVE-2022-23483, CVE-2023-42822 It was...

USN-6393-1: ImageMagick vulnerability

It was discovered that ImageMagick did not properly handle memory when processing the -help option. An attacker could potentially use this issue to cause a crash...

USN-6254-1: Linux kernel vulnerabilities

Jordy Zomer and Alexandra Sandulescu discovered that syscalls invoking the doprlimit function in the Linux kernel did not properly handle speculative execution barriers. A local attacker could use this to expose sensitive information kernel memory. CVE-2023-0458 It was discovered that a race...

USN-6091-1: Linux kernel vulnerabilities

It was discovered that some AMD x86-64 processors with SMT enabled could speculatively execute instructions using a return address from a sibling thread. A local attacker could possibly use this to expose sensitive information. CVE-2022-27672 Ziming Zhang discovered that the VMware Virtual GPU DR...

USN-5909-1: Linux kernel (Azure CVM) vulnerabilities

It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform bounds checking in some situations. A physically proximate attacker could use this to craft a malicious USB device that when inserted, could cause a denial of service system crash or possibly...

USN-5902-1: PHP vulnerabilities

It was discovered that PHP incorrectly handled certain invalid Blowfish password hashes. An invalid password hash could possibly allow applications to accept any password as valid, contrary to expectations. CVE-2023-0567 It was discovered that PHP incorrectly handled resolving long paths. A remot...

USN-5901-1: GnuTLS vulnerability

Hubert Kario discovered that GnuTLS had a timing side-channel when handling certain RSA messages. A remote attacker could possibly use this issue to recover sensitive information...

USN-5896-1: Rack vulnerabilities

It was discovered that Rack was not properly parsing data when processing multipart POST requests. If a user or automated system were tricked into sending a specially crafted multipart POST request to an application using Rack, a remote attacker could possibly use this issue to cause a denial of...

USN-5895-1: MPlayer vulnerabilities

It was discovered that MPlayer could be made to divide by zero when processing certain malformed media files. If a user were tricked into opening a specially crafted media file, an attacker could possibly use this issue to cause MPlayer to crash, resulting in a denial of service. CVE-2022-38850,...

USN-5886-1: Intel Microcode vulnerabilities

Erik C. Bjorge discovered that some IntelR Atom and Intel Xeon Scalable Processors did not properly implement access controls for out-of-band management. This may allow a privileged network-adjacent user to potentially escalate privileges. CVE-2022-21216 Cfir Cohen, Erdem Aktas, Felix Wilhelm,...

USN-5877-1: Linux kernel (GKE) vulnerabilities

Kyle Zeng discovered that the sysctl implementation in the Linux kernel contained a stack-based buffer overflow. A local attacker could use this to cause a denial of service system crash or execute arbitrary code. CVE-2022-4378 Tamás Koczka discovered that the Bluetooth L2CAP handshake...

USN-5573-1: rsync vulnerability

Evgeny Legerov discovered that zlib incorrectly handled memory when performing certain inflate operations. An attacker could use this issue to cause rsync to crash, resulting in a denial of service, or possibly execute arbitrary code...

USN-5529-1: Linux kernel (OEM) vulnerabilities

It was discovered that the Atheros ath9k wireless device driver in the Linux kernel did not properly handle some error conditions, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2022-1679...

USN-5393-1: Thunderbird vulnerabilities

Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, conduct spoofing attacks, or execute arbitrary code. CVE-2022-1097,...

USN-5264-1: Graphviz vulnerabilities

It was discovered that graphviz contains null pointer dereference vulnerabilities. Exploitation via a specially crafted input file can cause a denial of service. CVE-2018-10196, CVE-2019-11023 It was discovered that graphviz contains a buffer overflow vulnerability. Exploitation via a specially...

USN-5242-1: Open vSwitch vulnerability

It was discovered that Open vSwitch incorrectly handled certain fragmented packets. A remote attacker could possibly use this issue to cause Open vSwitch to consume resources, leading to a denial of service...

USN-5110-1: Ardour vulnerability

It was discovered that Ardour incorrectly handled certain XML files. An attacker could possibly use this issue to cause a crash or execute arbitrary code...

USN-4649-2: xdg-utils regression

USN-4649-1 fixed vulnerabilities in xdg-utils. That update caused a regression by removing the --attach functionality in thunderbird and others applications. This update fix the problem by reverting these changes. Original advisory details: Jens Mueller discovered that xdg-utils incorrectly handl...

USN-4359-1: APT vulnerability

It was discovered that APT incorrectly handled certain filenames during package installation. If an attacker could provide a specially crafted package to be installed by the system administrator, this could cause APT to crash...

USN-4221-1: libpcap vulnerability

It was discovered that libpcap did not properly validate PHB headers in some situations. An attacker could use this to cause a denial of service memory exhaustion...

USN-4149-1: Unbound vulnerability

It was discovered that Unbound incorrectly handled certain NOTIFY queries. An attacker could possibly use this issue to cause a denial of service...

USN-4055-1: flightcrew vulnerabilities

Mike Salvatore discovered that FlightCrew improperly handled certain malformed EPUB files. An attacker could potentially use this vulnerability to cause a denial of service. CVE-2019-13032 Mike Salvatore discovered that FlightCrew mishandled certain malformed EPUB files. An attacker could use thi...

USN-3947-2: Libxslt vulnerability

USN-3947-1 fixed a vulnerability in Libxslt. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: It was discovered that Libxslt incorrectly handled certain documents. An attacker could possibly use this issue to access sensitive information...

USN-3927-1: Thunderbird vulnerabilities

It was discovered that Thunderbird allowed PAC files to specify that requests to localhost are sent through the proxy to another server. If proxy auto-detection is enabled, an attacker could potentially exploit this to conduct attacks on local services and tools. CVE-2018-18506 Multiple security...

USN-3919-1: Firefox vulnerabilities

Two security issues were discovered in the JavaScript engine in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could exploit this by causing a denial of service, or executing arbitrary code...

USN-3917-1: snapd vulnerability

The snapd default seccomp filter for strict mode snaps blocks the use of the ioctl system call when used with TIOCSTI as the second argument to the system call. Jann Horn discovered that this restriction could be circumvented on 64 bit architectures. A malicious snap could exploit this to bypass...

USN-3866-2: Ghostscript regression

USN-3866-1 fixed vulnerabilities in Ghostscript. The new Ghostscript version introduced a regression when printing certain page sizes. This update fixes the problem. Original advisory details: Tavis Ormandy discovered that Ghostscript incorrectly handled certain PostScript files. If a user or...

USN-3884-1: libarchive vulnerabilities

It was discovered that libarchive incorrectly handled certain 7zip files. An attacker could possibly use this issue to cause a denial of service. CVE-2019-1000019, CVE-2019-1000020...

USN-3870-1: Spice vulnerability

Christophe Fergeau discovered that Spice incorrectly handled memory. A remote attacker could use this to cause Spice to crash, resulting in a denial of service, or possibly execute arbitrary code...

USN-3741-3: Linux kernel regressions

USN-3741-1 introduced mitigations in the Linux kernel for Ubuntu 14.04 LTS to address L1 Terminal Fault L1TF vulnerabilities CVE-2018-3620, CVE-2018-3646. Unfortunately, the update introduced regressions that caused kernel panics when booting in some environments as well as preventing Java...

USN-3742-1: Linux kernel vulnerabilities

It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault L1TF. A local attacker in a guest virtual machine could use this to expose sensitive...