USN-3969-2: wpa_supplicant and hostapd vulnerability

USN-3969-1 fixed a vulnerability in wpasupplicant and hostapd. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: It was discovered that wpasupplicant and hostapd incorrectly handled unexpected fragments when using EAP-pwd. A remote attacker could...

USN-3931-2: Linux kernel (HWE) vulnerabilities

USN-3931-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS and for the Linux Azure kernel for Ubuntu 14.04 LTS. M. Vefa Bicakci and Andy Lutomirsk...

USN-3712-1: libpng vulnerabilities

Patrick Keshishian discovered that libpng incorrectly handled certain PNG files. An attacker could possibly use this to cause a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. CVE-2016-10087 Thuan Pham discovered that libpng incorrectly handled certain PNG files...

USN-3678-1: Linux kernel vulnerabilities

Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle corrupted meta data in some situations. An attacker could use this to specially craft an ext4 filesystem that caused a denial of service system crash when mounted. CVE-2018-1092 It was discovered...

USN-3296-2: Samba vulnerability

USN-3296-1 fixed a vulnerability in Samba. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: It was discovered that Samba incorrectly handled shared libraries. A remote attacker could use this flaw to upload a shared library to a writable share and...

USN-3234-1: Linux kernel vulnerabilities

Ralf Spenneberg discovered that the ext4 implementation in the Linux kernel did not properly validate meta block groups. An attacker with physical access could use this to specially craft an ext4 image that causes a denial of service system crash. CVE-2016-10208 It was discovered that the Linux...

USN-1239-1: Linux kernel (EC2) vulnerabilities

Ryan Sweat discovered that the kernel incorrectly handled certain VLAN packets. On some systems, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. CVE-2011-1576 Vasiliy Kulikov and Dan Rosenberg discovered that ecryptfs did not correctly...

USN-1204-1: Linux kernel (i.MX51) vulnerabilities

Dan Rosenberg discovered that the Linux kernel TIPC implementation contained multiple integer signedness errors. A local attacker could exploit this to gain root privileges. CVE-2010-3859 Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local...

USN-1199-1: Apache vulnerability

A flaw was discovered in the byterange filter in Apache. A remote attacker could exploit this to cause a denial of service via resource exhaustion...

USN-8585-1: Kerberos vulnerabilities

It was discovered that Kerberos had an integer underflow vulnerability in the berval2tldata function. An attacker could possibly use this issue to cause Kerberos to crash, resulting in a denial of service. CVE-2026-11850 It was discovered that Kerberos had vulnerabilities in its NegoEx mechanism...

USN-5253-1: Rack vulnerabilities

It was discovered that Rack insecurely handled session ids. An unauthenticated remote attacker could possibly use this issue to perform a timing attack and hijack sessions. CVE-2019-16782 It was discovered that Rack was incorrectly handling cookies during parsing, not validating them or performin...

USN-5321-3: Firefox regressions

USN-5321-1 fixed vulnerabilities in Firefox. The update introduced several minor regressions. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted...

USN-5322-1: Subversion vulnerability

Thomas Akesson discovered that Subversion incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service...

USN-5265-1: Linux kernel vulnerabilities

Jeremy Cline discovered a use-after-free in the nouveau graphics driver of the Linux kernel during device removal. A privileged or physically proximate attacker could use this to cause a denial of service system crash. CVE-2020-27820 It was discovered that the Bluetooth subsystem in the Linux...

USN-5227-1: Pillow vulnerabilities

It was discovered that Pillow incorrectly handled certain image files. If a user or automated system were tricked into opening a specially-crafted file, a remote attacker could cause Pillow to hang, resulting in a denial of service. CVE-2021-23437 It was discovered that Pillow incorrectly handled...

USN-5225-1: lxml vulnerability

It was discovered that lxml incorrectly handled certain XML and HTML files. An attacker could possibly use this issue to execute arbitrary code...

USN-5081-1: Qt vulnerabilities

It was discovered that Qt incorrectly handled certain XBM image files. If a user or automated system were tricked into opening a specially crafted PPM file, a remote attacker could cause Qt to crash, resulting in a denial of service. CVE-2020-17507 It was discovered that Qt incorrectly handled...

USN-4885-1: Pygments vulnerability

It was discovered that Pygments incorrectly handled parsing SML files. If a user or automated system were tricked into parsing a specially crafted SML file, a remote attacker could cause Pygments to hang, resulting in a denial of service...

USN-4723-1: PEAR vulnerability

It was discovered that PEAR incorrectly handled symbolic links in archives. A remote attacker could possibly use this issue to execute arbitrary code...

USN-4593-2: FreeType vulnerability

USN-4593-1 fixed a vulnerability in FreeType. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: Sergei Glazunov discovered that FreeType did not correctly handle certain malformed font files. If a user were tricked into using a specially crafted font...

LSN-0069-1: Kernel Live Patch Security Notice

Relayopen in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service such as relay blockage by triggering a NULL allocpercpu result. CVE-2019-19462 Fan Yang discovered that the mremap implementation in the Linux kernel did not properly handle DAX Huge Page...

USN-4389-1: Linux kernel vulnerabilities

It was discovered that the F2FS file system implementation in the Linux kernel did not properly perform bounds checking on xattrs in some situations. A local attacker could possibly use this to expose sensitive information kernel memory. CVE-2020-0067 It was discovered that memory contents...

USN-4394-1: SQLite vulnerabilities

It was discovered that SQLite incorrectly handled certain corruped schemas. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS. CVE-2018-8740 It was discovered that SQLite incorrectly handled certain SELECT statements. An attacker cou...

USN-4286-2: Linux kernel (Xenial HWE) vulnerabilities

USN-4286-1 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 ESM. It was discovered that the Linux kernel did not properly clear data structures on...

USN-4216-2: Firefox vulnerabilities

USN-4216-1 fixed vulnerabilities in Firefox. This update provides the corresponding update for Ubuntu 16.04 LTS. Original advisory details: Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit...

USN-4199-1: libvpx vulnerabilities

It was discovered that libvpx did not properly handle certain malformed WebM media files. If an application using libvpx opened a specially crafted WebM file, a remote attacker could cause a denial of service, or possibly execute arbitrary code...

USN-4170-1: Whoopsie vulnerability

Kevin Backhouse discovered Whoopsie incorrectly handled very large crash reports. A local attacker could possibly use this issue to cause a denial of service, expose sensitive information or execute code as the whoopsie user...

USN-4096-1: Linux kernel (AWS) vulnerability

Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors incorrectly handle SWAPGS instructions during speculative execution. A local attacker could use this to expose sensitive information kernel memory...

USN-4070-3: MariaDB vulnerabilities

USN-4070-1 fixed multiple vulnerabilities in MySQL. This update provides the corresponding fixes for CVE-2019-2737, CVE-2019-2739, CVE-2019-2740, CVE-2019-2758, CVE-2019-2805, CVE-2019-2628, CVE-2019-2627, CVE-2019-2614 in MariaDB 10.3. Ubuntu 19.04 has been updated to MariaDB 10.3.17. In additio...

USN-4058-2: Bash vulnerability

USN-4058-1 fixed a vulnerability in bash. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Original advisory details: It was discovered that Bash incorrectly handled the restricted shell. An attacker could possibly use this issue to escape restrictions and...

USN-4078-1: OpenLDAP vulnerabilities

It was discovered that OpenLDAP incorrectly handled rootDN delegation. A database administrator could use this issue to request authorization as an identity from another database, contrary to expectations. CVE-2019-13057 It was discovered that OpenLDAP incorrectly handled SASL authentication and...

USN-3966-1: GNOME Shell vulnerability

It was discovered that the GNOME Shell incorrectly handled certain keyboard inputs. An attacker could possibly use this issue to invoke keyboard shortcuts, and potentially other actions while the workstation was locked...

USN-3948-1: WebKitGTK+ vulnerabilities

A large number of security issues were discovered in the WebKitGTK+ Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service...

USN-3386-1: Linux kernel vulnerabilities

Andrey Konovalov discovered a race condition in the UDP Fragmentation Offload UFO code in the Linux kernel. A local attacker could use this to cause a denial of service or execute arbitrary code. CVE-2017-1000112 Andrey Konovalov discovered a race condition in AFPACKET socket option handling code...

USN-1429-1: Jetty vulnerability

It was discovered that Jetty computed hash values for form parameters without restricting the ability to trigger hash collisions predictably. This could allow a remote attacker to cause a denial of service by sending many crafted parameters...

USN-6329-1: Linux kernel vulnerabilities

Daniel Moghimi discovered that some IntelR Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. CVE-2022-40982 Tavis Ormandy discovered that some AMD processors...

USN-5914-1: Linux kernel (OEM) vulnerabilities

It was discovered that the Upper Level Protocol ULP subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execut...

USN-5550-1: GnuTLS vulnerabilities

It was discovered that GnuTLS incorrectly handled certain memory operations. A remote attacker could possibly use this issue to cause GnuTLS to crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. CVE-2021-4209 It was discovered that GnuTLS...

USN-5518-1: Linux kernel vulnerabilities

It was discovered that the eBPF implementation in the Linux kernel did not properly prevent writes to kernel objects in BPFBTFLOAD commands. A privileged local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2022-0500 It was discovered tha...

USN-5505-1: Linux kernel vulnerabilities

Norbert Slusarek discovered a race condition in the CAN BCM networking protocol of the Linux kernel leading to multiple use-after-free vulnerabilities. A local attacker could use this issue to execute arbitrary code. CVE-2021-3609 Likang Luo discovered that a race condition existed in the Bluetoo...

USN-5408-1: Dnsmasq vulnerability

Petr Menšík and Richard Johnson discovered that Dnsmasq incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code or expose sensitive information...

USN-5360-1: Tomcat vulnerabilities

It was discovered that Tomcat incorrectly performed input verification. A remote attacker could possibly use this issue to intercept sensitive information. CVE-2020-13943, CVE-2020-17527, CVE-2021-25122, CVE-2021-30640 It was discovered that Tomcat did not properly deserialize untrusted data. An...

USN-5358-1: Linux kernel vulnerabilities

It was discovered that the network traffic control implementation in the Linux kernel contained 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-2022-1055 It was discovered that the IPsec implementati...

USN-5192-2: Apache Log4j 2 vulnerability

USN-5192-1 fixed a vulnerability in Apache Log4j 2. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: Chen Zhaojun discovered that Apache Log4j 2 allows remote attackers to run programs via a special crafted input. An attacker could use this...

LSN-0082-1: Kernel Live Patch Security Notice

Jann Horn discovered that the tty subsystem of the Linux kernel did not use consistent locking in some situations, leading to a read-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly expose sensitive information kernel...

USN-5056-1: APR vulnerability

It was discovered that APR incorrectly handled certain inputs. An attacker could possibly use this issue to expose sensitive information...

USN-5047-1: Firefox vulnerability

It was discovered that Firefox could be made to incorrectly accept newlines in HTTP/3 response headers. If a user were tricked into opening a specially crafted website, an attacker could exploit this to conduct header splitting attacks...

USN-5008-2: Avahi vulnerability

USN-5008-1 fixed a vulnerability in avahi. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Thomas Kremer discovered that Avahi incorrectly handled termination signals on the Unix socket. A local attacker could possibly use this...

USN-4905-2: X.Org X Server vulnerability

USN-4905-1 fixed a vulnerability in X.Org. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled certain lengths of XInput extension ChangeFeedbackControl requests. An attacker could us...

USN-4975-2: Django vulnerability

USN-4975-1 fixed a vulnerability in Django. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: Rasmus Lerchedahl Petersen and Rasmus Wriedt Larsen discovered that Django incorrectly handled path sanitation in admindocs. A remote attacker could possibly...