USN-7189-1 HTMLDOC vulnerabilities

It was discovered that HTMLDOC incorrectly handled certain inputs, which could lead to an integer overflow. An attacker could potentially use this issue to cause a denial of service or execute arbitrary code. CVE-2021-20308 It was discovered that HTMLDOC incorrectly handled memory in pspdfexport,...

USN-7159-5 linux-raspi-5.4 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; - S390 architecture; - x86 architecture; - Power management core; - GPU...

USN-6972-2 linux-aws, linux-aws-hwe vulnerabilities

Yuxuan Hu discovered that the Bluetooth RFCOMM protocol driver in the Linux Kernel contained a race condition, leading to a NULL pointer dereference. An attacker could possibly use this to cause a denial of service system crash. CVE-2024-22099 It was discovered that a race condition existed in th...

USN-6943-1 tomcat8, tomcat9 vulnerabilities

It was discovered that Tomcat incorrectly handled certain uncommon PersistenceManager with FileStore configurations. A remote attacker could possibly use this issue to execute arbitrary code. This issue only affected tomcat8 for Ubuntu 18.04 LTS CVE-2020-9484 It was discovered that Tomcat...

USN-6707-3 linux-aws, linux-aws-6.5 vulnerabilities

Lonial Con discovered that the netfilter subsystem in the Linux kernel did not properly handle element deactivation in certain cases, 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...

USN-6688-1 linux-oem-6.1 vulnerabilities

Pratyush Yadav discovered that the Xen network backend implementation in the Linux kernel did not properly handle zero length data request, leading to a null pointer dereference vulnerability. An attacker in a guest VM could possibly use this to cause a denial of service host domain crash...

USN-6651-1 linux, linux-aws, linux-gcp, linux-hwe-6.5, linux-laptop, linux-oracle, linux-raspi, linux-starfive vulnerabilities

It was discovered that a race condition existed in the ATM Asynchronous Transfer Mode subsystem of the Linux kernel, 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-2023-51780 It was...

USN-6635-1 linux-gcp-6.2 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 Lucas...

USN-6598-1 paramiko vulnerability

Fabian Bäumer, Marcus Brinkmann, Jörg Schwenk discovered that the SSH protocol was vulnerable to a prefix truncation attack. If a remote attacker was able to intercept SSH communications, extension negotiation messages could be truncated, possibly leading to certain algorithms and features being...

USN-6454-3 linux-laptop vulnerabilities

Kyle Zeng discovered that the netfilter subsystem in the Linux kernel contained a race condition in IP set operations in certain situations. A local attacker could use this to cause a denial of service system crash. CVE-2023-42756 Alex Birnberg discovered that the netfilter subsystem in the Linux...

USN-6416-3 linux-raspi vulnerabilities

It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service excessive CPU consumption. CVE-2023-1206 Daniel Trujillo, Johannes Wikner, and Kaveh Razavi...

USN-6223-1 linux-azure-fde vulnerabilities

It was discovered that the TUN/TAP driver in the Linux kernel did not properly initialize socket data. A local attacker could use this to cause a denial of service system crash. CVE-2023-1076 It was discovered that the Real-Time Scheduling Class implementation in the Linux kernel contained a type...

USN-5879-1 linux-hwe-5.19 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-5814-1 linux-azure, linux-gkeop, linux-intel-iotg, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oracle-5.15 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-5791-3 linux-azure-5.4, linux-azure-fde vulnerabilities

It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, 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-2022-20421 David Leadbeater...

USN-5205-1 tcpreplay vulnerabilities

It was discovered that Tcpreplay incorrectly handled certain specially crafted packet capture input when processed by tcpprep. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 ESM. CVE-2018-13112 It was discovered that Tcpreplay...

USN-5546-1 openjdk-8, openjdk-lts, openjdk-17, openjdk-18 vulnerabilities

Neil Madden discovered that OpenJDK did not properly verify ECDSA signatures. A remote attacker could possibly use this issue to insert, edit or obtain sensitive information. This issue only affected OpenJDK 17 and OpenJDK 18. CVE-2022-21449 It was discovered that OpenJDK incorrectly limited memo...

USN-5539-1 linux-bluefield, linux-gcp-5.4, linux-gke-5.4 vulnerabilities

It was discovered that the implementation of the 6pack and mkiss protocols in the Linux kernel did not handle detach events properly in some situations, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service system crash. CVE-2022-1195...

USN-5354-1 twisted vulnerabilities

It was discovered that Twisted incorrectly filtered HTTP headers when clients are being redirected to another origin. A remote attacker could use this issue to obtain sensitive information. CVE-2022-21712 It was discovered that Twisted incorrectly processed SSH handshake data on connection...

USN-5334-1 man-db vulnerability

It was discovered that man-db incorrectly handled permission changing operations in its daily cron job, and was therefore affected by a race condition. An attacker could possibly use this issue to escalate privileges and execute arbitrary code...

USN-5283-1 node-tar vulnerability

It was discovered that Tar for Node.js did not properly sanitize path inputs. An attacker could possibly use this issue to read arbitrary files, resulting in a directory traversal attack...

USN-5218-1 linux-oem-5.13 vulnerabilities

Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could use this to leak or alter data from other processes that use huge pages. CVE-2021-4002 It was discovered that the eBPF implementation in the Linux...

USN-5192-2 apache-log4j2 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...

USN-5172-2 uriparser vulnerability

USN-5172-1 fixed vulnerabilities in uriparser. This update provides the corresponding updates for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: It was discovered that uriparser mishandled certain input. An attacker could use this vulnerability to cause uriparser to crash or...

USN-5119-1 libcaca vulnerabilities

It was discovered that libcaca incorrectly handled certain images. An attacker could possibly use this issue to cause a crash. CVE-2021-30498, CVE-2021-30499...

USN-5021-1 curl vulnerabilities

Harry Sintonen and Tomas Hoger discovered that curl incorrectly handled TELNET connections when the -t option was used on the command line. Uninitialized data possibly containing sensitive information could be sent to the remote server, contrary to expectations. CVE-2021-22898, CVE-2021-22925 Har...

USN-4945-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4 vulnerabilities

It was discovered that the Nouveau GPU driver in the Linux kernel did not properly handle error conditions in some situations. A local attacker could use this to cause a denial of service system crash. CVE-2020-25639 Jan Beulich discovered that the Xen netback backend in the Linux kernel did not...

USN-4858-1 gradle vulnerabilities

It was discovered that Gradle used an insecure HTTP URL to download dependencies when the built-in JavaScript or CoffeeScript Gradle plugins were used. A remote unauthenticated attacker could possibly use this issue to perform a machine-in-the-middle attack. CVE-2019-11065 It was discovered that...

USN-4699-1 log4net vulnerability

It was discovered that Apache Log4net incorrectly handled certain configuration files. An attacker could possibly use this issue to expose sensitive information...

USN-4640-1 pulseaudio vulnerability

James Henstridge discovered that an Ubuntu-specific patch caused PulseAudio to incorrectly handle snap client connections. An attacker could possibly use this to expose sensitive information...

USN-4425-1 linux, linux-aws, linux-azure, linux-azure-5.4, linux-gcp, linux-hwe-5.4, linux-kvm, linux-oracle, linux-raspi, linux-raspi-5.4, linux-riscv vulnerabilities

It was discovered that the network block device nbd implementation in the Linux kernel did not properly check for error conditions in some situations. An attacker could possibly use this to cause a denial of service system crash. CVE-2019-16089 It was discovered that the kernel-user space relay...

USN-4194-2 postgresql-common vulnerability

USN-4194-1 fixed a vulnerability in postgresql-common. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: Rich Mirch discovered that the postgresql-common pgctlcluster script incorrectly handled directory creation. A local attacker could possibly use th...

USN-4170-2 whoopsie regression

USN-4170-1 fixed a vulnerability in Whoopsie. The update caused Whoopsie to crash when sending reports. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Kevin Backhouse discovered Whoopsie incorrectly handled very large crash reports. A local attacker...

USN-3879-2 linux-lts-xenial, linux-aws vulnerabilities

USN-3879-1 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. Wen Xu discovered that the ext4 file system implementation in the Linux kernel could...

USN-3113-1 oxide-qt vulnerabilities

It was discovered that a long running unload handler could cause an incognito profile to be reused in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to obtain sensitive information. CVE-2016-1586 Multiple security...

USN-2976-1 linux-lts-utopic vulnerability

Philip Pettersson discovered that the Linux kernel's ASN.1 DER decoder did not properly process certificate files with tags of indefinite length. A local unprivileged attacker could use this to cause a denial of service system crash or possibly execute arbitrary code with administrative privilege...

USN-2537-1 openssl vulnerabilities

It was discovered that OpenSSL incorrectly handled malformed EC private key files. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service, or execute arbitrary code. CVE-2015-0209 Stephen Henson discovered that OpenSSL incorrectly handled...

USN-2473-1 coreutils vulnerabilities

It was discovered that the distcheck rule in dist-check.mk in GNU coreutils allows local users to gain privileges via a symlink attack on a directory tree under /tmp. This issue only affected Ubuntu 10.04 LTS. CVE-2009-4135 Bertrand Jacquin and Fiedler Roman discovered date and touch incorrectly...

USN-2407-1 nova vulnerabilities

Garth Mollett discovered that OpenStack Nova did not properly clean up an instance when using rescue mode with the VMWare driver. A remove authenticated user could exploit this to bypass intended quota limits. By default, Ubuntu does not use the VMWare driver. CVE-2014-3608 Amrith Kumar discovere...

USN-8555-2 ubuntu-advantage-tools regression

USN-8555-1 fixed vulnerabilities in Ubuntu Advantage Tools. On Ubuntu 14.04 LTS only, it was discovered that some machines were unable to enable esm-infra-legacy due to a preemptive apt-helper check. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Bil...

USN-8574-2 linux-fips, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oracle vulnerabilities

It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. CVE-2025-54505 It was discovered that some AMD Zen 2 processors did not properly isolate shared...

USN-8490-1 linux, linux-aws, linux-aws-6.17, linux-gcp, linux-gcp-6.17, linux-oracle, linux-oracle-6.17 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: - ARM64 architecture; - Block layer subsystem; - Cryptographic API; - DMA engine subsystem; - InfiniBand drivers; -...

USN-8536-1 mariadb vulnerabilities

It was discovered that MariaDB did not properly validate parameters supplied by a joiner node during a State Snapshot Transfer using the mariabackup method. An attacker could possibly use this issue to execute arbitrary shell commands on the donor node. CVE-2026-44168 It was discovered that Maria...

USN-8530-1 linux-aws, linux-aws-fips vulnerabilities

It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processing paged fragments. A local attacker...

USN-8489-1 linux-oem-7.0 vulnerabilities

It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processing paged fragments. A local attacker...

USN-8451-1 vim vulnerabilities

Srinivas Piskala Ganesh Babu discovered that Vim incorrectly handled directory names when serializing browsed paths to the netrw history file. An attacker could possibly use this issue to execute arbitrary code. CVE-2026-47162 It was discovered that Vim incorrectly handled step-definition pattern...

USN-8450-1 tomcat11 vulnerabilities

It was discovered that Tomcat did not properly limit the size of WebDAV LOCK and PROPFIND request bodies. A remote attacker could possibly use this issue to cause Tomcat to consume excessive memory, resulting in a denial of service. CVE-2026-41284 It was discovered that Tomcat incorrectly validat...

USN-8447-1 golang-go.crypto vulnerabilities

It was discovered that Go Cryptography did not properly handle SSH global request responses. A remote attacker could possibly use this issue to cause a denial of service. CVE-2026-39830 It was discovered that Go Cryptography did not properly verify user presence when using FIDO/U2F security keys...

USN-8398-3 nginx vulnerability

USN-8398-1 fixed a vulnerability in nginx. The update caused a regression and was temporarily reverted in USN-8398-2. This update introduces a complete fix for CVE-2026-49975. We apologize for the inconvenience. Original advisory details: It was discovered that nginx incorrectly handled certain...

USN-8375-1 nginx vulnerabilities

It was discovered that the nginx ngxmailsmtpmodule module incorrectly handled certain memory operations when doing SMTP authentication. This could possibly result in sensitive information being sent to the authentication server. CVE-2025-53859 It was discovered that nginx incorrectly handled...