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-3752-2: Linux kernel (HWE) vulnerabilities

USN-3752-1 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. It was discovered that, when attempting to handle an out-of-memory situation, a null...

USN-3678-4: Linux kernel (Raspberry Pi 2) 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 file system that caused a denial of service system crash when mounted. CVE-2018-1092 It was discovere...

USN-3677-2: Linux kernel (HWE) vulnerabilities

USN-3677-1 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. It was discovered that the netfilter subsystem of the Linux kernel did not properly validate...

USN-3470-2: Linux kernel (Trusty HWE) vulnerabilities

USN-3470-1 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 ESM. Qian Zhang discovered a heap-based buffer overflow in the tipcmsgbuild function in the...

USN-3381-1: Linux kernel vulnerabilities

Peter Pi discovered that the colormap handling for frame buffer devices in the Linux kernel contained an integer overflow. A local attacker could use this to disclose sensitive information kernel memory. CVE-2016-8405 It was discovered that the Linux kernel did not properly restrict RLIMITSTACK...

USN-3284-1: OpenVPN vulnerabilities

It was discovered that OpenVPN improperly triggered an assert when receiving an oversized control packet in some situations. A remote attacker could use this to cause a denial of service server or client crash. CVE-2017-7478 It was discovered that OpenVPN improperly triggered an assert when packe...

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-2967-1: Linux kernel vulnerabilities

It was discovered that the Linux kernel did not properly enforce rlimits for file descriptors sent over UNIX domain sockets. A local attacker could use this to cause a denial of service. CVE-2013-4312 Ralf Spenneberg discovered that the Aiptek Tablet USB device driver in the Linux kernel did not...

USN-2827-1: OpenJDK 6 vulnerabilities

Multiple 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-2015-4805, CVE-2015-4835, CVE-2015-4843, CVE-2015-4844,...

USN-2497-1: NTP vulnerabilities

Stephen Roettger, Sebastian Krahmer, and Harlan Stenn discovered that NTP incorrectly handled the length value in extension fields. A remote attacker could use this issue to possibly obtain leaked information, or cause the NTP daemon to crash, resulting in a denial of service. CVE-2014-9297 Steph...

USN-2240-1: Linux kernel vulnerabilities

Pinkie Pie discovered a flaw in the Linux kernel's futex subsystem. An unprivileged local user could exploit this flaw to cause a denial of service system crash or gain administrative privileges. CVE-2014-3153 An information leak was discovered in the netfilter subsystem of the Linux kernel. An...

USN-1941-1: Linux kernel 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-1681-4: Firefox regression

USN-1681-1 fixed vulnerabilities in Firefox. Due to an upstream regression, Firefox suffered from instabilities when accessing some websites. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Christoph Diehl, Christian Holler, Mats Palmgren, Chiaki...

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-1246-1: Linux kernel vulnerabilities

Dan Rosenberg discovered that the IPv4 diagnostic routines did not correctly validate certain requests. A local attacker could exploit this to consume CPU resources, leading to a denial of service. CVE-2011-2213 Dan Rosenberg discovered that the Bluetooth stack incorrectly handled certain L2CAP...

USN-947-2: Linux kernel regression

USN-947-1 fixed vulnerabilities in the Linux kernel. Fixes for CVE-2010-0419 caused failures when using KVM in certain situations. This update reverts that fix until a better solution can be found. We apologize for the inconvenience. Original advisory details: It was discovered that the Linux...

USN-720-1: PHP vulnerabilities

It was discovered that PHP did not properly enforce phpadminvalue and phpadminflag restrictions in the Apache configuration file. A local attacker could create a specially crafted PHP script that would bypass intended security restrictions. This issue only applied to Ubuntu 6.06 LTS, 7.10, and 8....

USN-355-1: openssh vulnerabilities

Tavis Ormandy discovered that the SSH daemon did not properly handle authentication packets with duplicated blocks. By sending specially crafted packets, a remote attacker could exploit this to cause the ssh daemon to drain all available CPU resources until the login grace time expired...

USN-7270-1: OpenSSH vulnerabilities

It was discovered that the OpenSSH client incorrectly handled the non-default VerifyHostKeyDNS option. If that option were enabled, an attacker could possibly impersonate a server by completely bypassing the server identity check. CVE-2025-26465 It was discovered that OpenSSH incorrectly handled...

USN-6534-1: Linux kernel 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-6502-3: Linux kernel (NVIDIA) vulnerabilities

Ivan D Barrera, Christopher Bednarz, Mustafa Ismail, and Shiraz Saleem discovered that the InfiniBand RDMA driver in the Linux kernel did not properly check for zero-length STAG or MR registration. A remote attacker could possibly use this to execute arbitrary code. CVE-2023-25775 Yu Hao discover...

USN-6309-1: Linux kernel vulnerabilities

Zheng Zhang discovered that the device-mapper implementation in the Linux kernel did not properly handle locking during tableclear operations. A local attacker could use this to cause a denial of service kernel deadlock. CVE-2023-2269 It was discovered that a use-after-free vulnerability existed ...

USN-5956-1: PHPMailer vulnerabilities

Dawid Golunski discovered that PHPMailer was not properly escaping user input data used as arguments to functions executed by the system shell. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 16.04 ESM. CVE-2016-10033, CVE-2016-10045 It was...

USN-5892-2: NSS vulnerability

USN-5892-1 fixed a vulnerability in NSS. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Christian Holler discovered that NSS incorrectly handled certain PKCS 12 certificated bundles. A remote attacker could use this issue to cau...

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-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-5792-2: Linux kernel vulnerabilities

Mingwei Zhang discovered that the KVM implementation for AMD processors in the Linux kernel did not properly handle cache coherency with Secure Encrypted Virtualization SEV. A local attacker could possibly use this to cause a denial of service host system crash. CVE-2022-0171 It was discovered th...

USN-5523-2: LibTIFF vulnerabilities

USN-5523-1 fixed several vulnerabilities in LibTIFF. This update provides the fixes for CVE-2022-0907, CVE-2022-0908, CVE-2022-0909, CVE-2022-0924 and CVE-2022-22844 for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Original advisory details: It was discovered that LibTIFF was not properly perf orming...

USN-5560-2: Linux kernel vulnerabilities

Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service system crash or execute arbitrary code...

USN-5405-1: jbig2dec vulnerabilities

It was discovered that jbig2dec incorrectly handled memory when parsing invalid files. An attacker could use this issue to cause jbig2dec to crash, leading to a denial of service. CVE-2017-9216 It was discovered that jbig2dec incorrectly handled memory when processing untrusted input. An attacker...

USN-5309-1: virglrenderer vulnerabilities

It was discovered that virglrenderer incorrectly handled memory. An attacker inside a guest could use this issue to cause virglrenderer to crash, resulting in a denial of service, or possibly execute arbitrary code. CVE-2022-0135 It was discovered that virglrenderer incorrectly initialized memory...

USN-5030-2: Perl DBI module vulnerabilities

USN-5030-1 addressed vulnerabilities in Perl DBI module. This update provides the corresponding updates for Ubuntu 16.04 ESM. Original advisory details: It was discovered that the Perl DBI module incorrectly opened files outside of the folder specified in the data source name. A remote attacker...

USN-5193-2: X.Org X Server vulnerabilities

USN-5193-1 fixed several vulnerabilities in X.Org. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled certain inputs. An attacker could use this issue to cause t...

USN-5186-2: Firefox regressions

USN-5186-1 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-5201-1: Python vulnerabilities

It was discovered that the Python urllib http client could enter into an infinite loop when incorrectly handling certain server responses 100 Continue response. Specially crafted traffic from a malicious HTTP server could cause a denial of service Dos condition for a client...

USN-5142-3: Samba regression

USN-5142-1 fixed vulnerabilities in Samba. Some of the upstream changes introduced a regression in Kerberos authentication in certain environments. Please see the following upstream bug for more information: https://bugzilla.samba.org/showbug.cgi?id=14922 This update fixes the problem. Original...

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-4937-2: GNOME Autoar regression

USN-4937-1 fixed a vulnerability in GNOME Autoar. The update caused a regression when extracting certain archives. This update fixes the problem. Original advisory details: Ondrej Holy discovered that GNOME Autoar could extract files outside of the intended directory. If a user were tricked into...

LSN-0077-1: Kernel Live Patch Security Notice

Vincent Dehors discovered that the shiftfs file system in the Ubuntu Linux kernel did not properly handle faults in copyfromuser when passing through ioctls to an underlying file system. A local attacker could use this to cause a denial of service memory exhaustion or execute arbitrary...

USN-4532-1: Netty vulnerabilities

It was discovered that Netty incorrectly handled certain HTTP headers. By sending an HTTP header with whitespace before the colon, a remote attacker could possibly use this issue to perform an HTTP request smuggling attack. CVE-2019-16869 It was discovered that Netty incorrectly handled certain...

USN-4431-1: FFmpeg vulnerabilities

It was discovered that FFmpeg incorrectly verified empty audio packets or HEVC data. An attacker could possibly use this issue to cause a denial of service via a crafted file. This issue only affected Ubuntu 16.04 LTS, as it was already fixed in Ubuntu 18.04 LTS. For more information see:...

USN-4428-1: Python vulnerabilities

It was discovered that Python documentation had a misleading information. A security issue could be possibly caused by wrong assumptions of this information. This issue only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. CVE-2019-17514 It was discovered that...

USN-4167-1: Samba vulnerabilities

Michael Hanselmann discovered that the Samba client code incorrectly handled path separators. If a user were tricked into connecting to a malicious server, a remote attacker could use this issue to cause the client to access local pathnames instead of network pathnames. CVE-2019-10218 Simon...

USN-4156-2: SDL vulnerabilities

USN-4156-1 fixed several vulnerabilities in SDL. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Original advisory details: It was discovered that SDL incorrectly handled certain images. If a user were tricked into opening a crafted image file, a remote...

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-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...