USN-4175-1: Nokogiri vulnerability

It was discovered that Nokogiri incorrectly handled inputs. A remote attacker could possibly use this issue to execute arbitrary OS commands...

USN-4152-1: libsoup vulnerability

It was discovered that libsoup incorrectly handled parsing certain NTLM messages. If a user or automated system were tricked into connecting to a malicious server, a remote attacker could possibly use this issue to cause a denial of service...

USN-3943-2: Wget vulnerability

USN-3943-1 fixed a vulnerability in Wget. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: Kusano Kazuhiko discovered that Wget incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. CVE-2019-5953...

USN-3847-1: Linux kernel vulnerabilities

It was discovered that a race condition existed in the raw MIDI driver for the Linux kernel, leading to a double free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2018-10902 It was discovered that an integer overr...

USN-3842-1: CUPS vulnerability

Jann Horn discovered that CUPS incorrectly handled session cookie randomness. A remote attacker could possibly use this issue to perform cross-site request forgery CSRF attacks...

USN-3765-1: curl vulnerability

It was discovered that curl incorrectly handled certain inputs. An attacker could possibly use this to execute arbitrary code...

USN-3758-1: libx11 vulnerabilities

Tobias Stoeckmann discovered that libx11 incorrectly handled certain images. An attacker could possibly use this issue to access sensitive information CVE-2016-7942 Tobias Stoeckmann discovered that libx11 incorrectly handled certain inputs. An attacker could possibly use this issue to access...

USN-3611-2: OpenSSL vulnerabilities

USN-3611-1 fixed a vulnerability in OpenSSL. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: It was discovered that OpenSSL incorrectly parsed the IPAddressFamily extension in X.509 certificates, resulting in an erroneous display of the certificate i...

USN-3597-1: Linux kernel vulnerabilities

USNS 3541-1 and 3523-1 provided mitigations for Spectre and Meltdown CVE-2017-5715, CVE-2017-5753, CVE-2017-5754 for the i386, amd64, and ppc64el architectures in Ubuntu 17.10. This update provides the corresponding mitigations for the arm64 architecture. Original advisory details: Jann Horn...

USN-3469-2: Linux kernel (Xenial HWE) vulnerabilities

USN-3469-1 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. Anthony Perard discovered that the Xen virtual block driver did not properly initializ...

USN-3405-2: Linux kernel (Xenial HWE) vulnerabilities

USN-3405-1 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. It was discovered that a use-after-free vulnerability existed in the POSIX message que...

USN-3396-1: OpenJDK 7 vulnerabilities

It was discovered that the JPEGImageReader class in OpenJDK would incorrectly read unused image data. An attacker could use this to specially construct a jpeg image file that when opened by a Java application would cause a denial of service. CVE-2017-10053 It was discovered that the JAR verifier ...

USN-3364-2: Linux kernel (Xenial HWE) vulnerabilities

USN-3364-1 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. It was discovered that the Linux kernel did not properly initialize a Wake- on-Lan dat...

USN-3304-1: Sudo vulnerability

It was discovered that Sudo did not properly parse the contents of /proc/pid/stat when attempting to determine its controlling tty. A local attacker in some configurations could possibly use this to overwrite any file on the filesystem, bypassing intended permissions...

USN-3225-1: libarchive vulnerabilities

It was discovered that libarchive incorrectly handled hardlink entries when extracting archives. A remote attacker could possibly use this issue to overwrite arbitrary files. CVE-2016-5418 Christian Wressnegger, Alwin Maier, and Fabian Yamaguchi discovered that libarchive incorrectly handled...

USN-3169-1: Linux kernel vulnerabilities

Dmitry Vyukov discovered that the KVM implementation in the Linux kernel did not properly initialize the Code Segment CS in certain error cases. A local attacker could use this to expose sensitive information kernel memory. CVE-2016-9756 Andrey Konovalov discovered that signed integer overflows...

USN-2973-1: Thunderbird vulnerabilities

Christian Holler, Tyson Smith, and Phil Ringalda 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...

USN-2975-2: Linux kernel (Trusty HWE) vulnerability

USN-2975-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 14.04 LTS for Ubuntu 12.04 LTS. Philip Pettersson discovered that the Linux kernel's ASN.1 DER decoder did not properl...

USN-2965-1: Linux kernel vulnerabilities

Jann Horn discovered that the extended Berkeley Packet Filter eBPF implementation in the Linux kernel did not properly reference count file descriptors, leading to a use-after-free. A local unprivileged attacker could use this to gain administrative privileges. CVE-2016-4557 Ralf Spenneberg...

USN-2948-2: Linux kernel (Utopic HWE) regression

USN-2948-1 fixed vulnerabilities in the Ubuntu 14.10 Linux kernel backported to Ubuntu 14.04 LTS. An incorrect reference counting fix in the radeon driver introduced a regression that could cause a system crash. This update fixes the problem. We apologize for the inconvenience. Original advisory...

USN-2907-1: Linux kernel 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-2900-1: GNU C Library vulnerability

It was discovered that the GNU C Library incorrectly handled receiving responses while performing DNS resolution. A remote attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly execute arbitrary code...

USN-2892-1: nginx vulnerabilities

It was discovered that nginx incorrectly handled certain DNS server responses when the resolver is enabled. A remote attacker could possibly use this issue to cause nginx to crash, resulting in a denial of service. CVE-2016-0742 It was discovered that nginx incorrectly handled CNAME response...

USN-2868-1: DHCP vulnerability

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...

USN-2694-1: PCRE vulnerabilities

Michele Spagnuolo discovered that PCRE incorrectly handled certain regular expressions. A remote attacker could use this issue to cause applications using PCRE to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 LTS. CVE-2014-8964...

USN-2638-1: Linux kernel vulnerabilities

Xiong Zhou discovered a bug in the way the EXT4 filesystem handles fallocate zero range functionality when the page size is greater than the block size. A local attacker could exploit this flaw to cause a denial of service system crash. CVE-2015-0275 Wen Xu discovered a use-after-free flaw in the...

USN-2542-1: Linux kernel (OMAP4) vulnerabilities

The Linux kernel's splice system call did not correctly validate its parameters. A local, unprivileged user could exploit this flaw to cause a denial of service system crash. CVE-2014-7822 A flaw was discovered in how Thread Local Storage TLS is handled by the task switching function in the Linux...

USN-2174-1: Linux kernel (EC2) vulnerabilities

A flaw was discovered in the Linux kernel's handling of the SCTP handshake. A remote attacker could exploit this flaw to cause a denial of service system crash. CVE-2014-0101 An error was discovered in the Linux kernel's DCCP protocol support. A remote attacked could exploit this flaw to cause a...

USN-2068-1: Linux kernel (Quantal HWE) 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-2041-1: Linux kernel (Raring HWE) 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-2009-1: Firefox vulnerabilities

Multiple memory safety issues were discovered in Firefox. If a user were tricked in to opening a specially crafted page, an attacker could possibly exploit these to cause a denial of service via application crash, or potentially execute arbitrary code with the privileges of the user invoking...

USN-1673-1: Linux kernel (OMAP4) vulnerability

Dmitry Monakhov reported a race condition flaw the Linux ext4 filesystem that can expose stale data. An unprivileged user could exploit this flaw to cause an information leak. CVE-2012-4508 A flaw was discovered in the Linux kernel's handling of new hot-plugged memory. An unprivileged local user...

USN-1534-1: Linux kernel (EC2) vulnerabilities

An error was discovered in the Linux kernel's network TUN/TAP device implementation. A local user with access to the TUN/TAP interface which is not available to unprivileged users until granted by a root user could exploit this flaw to crash the system or potential gain administrative privileges...

USN-1364-1: Linux kernel (OMAP4) vulnerabilities

A bug was discovered in the Linux kernel's calculation of OOM Out of memory scores, that would result in the wrong process being killed. A user could use this to kill the process with the highest OOM score, even if that process belongs to another user or the system. CVE-2011-4097 A flaw was...

USN-1150-1: Thunderbird vulnerabilities

Multiple memory vulnerabilities were discovered in the browser rendering engine. An attacker could use these to possibly execute arbitrary code with the privileges of the user invoking Thunderbird. CVE-2011-2364, CVE-2011-2365, CVE-2011-2374, CVE-2011-2376 Martin Barbella discovered that under...

USN-1153-1: libxml2 vulnerability

Chris Evans discovered that libxml2 incorrectly handled memory allocation. If an application using libxml2 opened a specially crafted XML file, an attacker could cause a denial of service or possibly execute code as the user invoking the program...

USN-1080-1: Linux kernel vulnerabilities

Thomas Pollet discovered that the RDS network protocol did not check certain iovec buffers. A local attacker could exploit this to crash the system or possibly execute arbitrary code as the root user. CVE-2010-3865 Vasiliy Kulikov discovered that the Linux kernel X.25 implementation did not...

USN-1008-4: libvirt regression

USN-1008-1 fixed vulnerabilities in libvirt. The upstream fixes for CVE-2010-2238 changed the behavior of libvirt such that the domain XML could not specify 'hostdevice' as the qemu sub-type. While libvirt 0.8.3 and later will longer support specifying this sub-type, this update restores the old...

USN-990-2: Apache vulnerability

USN-860-1 introduced a partial workaround to Apache that disabled client initiated TLS renegotiation in order to mitigate CVE-2009-3555. USN-990-1 introduced the new RFC5746 renegotiation extension in openssl, and completely resolves the issue. After updating openssl, an Apache server will allow...

USN-955-1: OPIE vulnerability

Maksymilian Arciemowicz and Adam Zabrocki discovered that OPIE incorrectly handled long usernames. A remote attacker could exploit this with a crafted username and make applications linked against libopie crash, leading to a denial of service...

USN-914-1: Linux kernel vulnerabilities

Mathias Krause discovered that the Linux kernel did not correctly handle missing ELF interpreters. A local attacker could exploit this to cause the system to crash, leading to a denial of service. CVE-2010-0307 Marcelo Tosatti discovered that the Linux kernel's hardware virtualization did not...

USN-862-1: PHP vulnerabilities

Maksymilian Arciemowicz discovered that PHP did not properly validate arguments to the dbareplace function. If a script passed untrusted input to the dbareplace function, an attacker could truncate the database. This issue only applied to Ubuntu 6.06 LTS, 8.04 LTS, and 8.10. CVE-2008-7068 It was...

USN-756-1: ClamAV vulnerability

It was discovered that ClamAV did not properly verify buffers when processing Upack files. A remote attacker could send a crafted file and cause a denial of service via application crash...

USN-575-1: Apache vulnerabilities

It was discovered that Apache did not sanitize the Expect header from an HTTP request when it is reflected back in an error message, which could result in browsers becoming vulnerable to cross-site scripting attacks when processing the output. With cross-site scripting vulnerabilities, if a user...

USN-522-1: openssl vulnerabilities

It was discovered that OpenSSL did not correctly perform Montgomery multiplications. Local attackers might be able to reconstruct RSA private keys by examining another user's OpenSSL processes. CVE-2007-3108 Moritz Jodeit discovered that OpenSSL's SSLgetsharedciphers function did not correctly...

USN-147-1: PHP XMLRPC vulnerability

A remote code execution vulnerability has been discovered in the XMLRPC module of the PEAR PHP Extension and Application Repository extension of PHP. By sending specially crafted XMLRPC requests to an affected web server, a remote attacker could exploit this to execute arbitrary code with the web...

USN-7434-1: Perl vulnerability

It was discovered that Perl incorrectly handled transliterating non-ASCII bytes. A remote attacker could use this issue to cause Perl to crash, resulting in a denial of service, or possibly execute arbitrary code...

USN-7426-1: poppler vulnerabilities

It was discovered that poppler incorrectly handled memory when opening certain PDF files. An attacker could possibly use this issue to cause poppler to crash, resulting in a denial of service...

USN-7285-2: nginx vulnerability

USN-7285-1 fixed vulnerabilities in nginx. This update provides the corresponding updates for Ubuntu 24.04 LTS. Original advisory details: It was discovered that nginx incorrectly handled when multiple server blocks are configured to share the same IP address and port. An attacker could use this...

USN-7357-1: Libxslt vulnerability

Ivan Fratric discovered that Libxslt incorrectly handled certain memory operations when handling documents. A remote attacker could use this issue to cause Libxslt to crash, resulting in a denial of service, or possibly execute arbitrary code...