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Skip to main content Canonical Ubuntu * * Menu * Products * Use cases * Support * Community * Get Ubuntu * All Canonical * Back * Products * Back * Canonical * Ubuntu * Ubuntu Pro * Snapcraft * LXD * MAAS * OpenStack * Ceph * Kubernetes * Juju * Also from Canonical * Back * Anbox Cloud * Launchpad * Ubuntu on public clouds * Multipass * Cloud-init * Landscape * Netplan * Charmed Kubeflow * MicroCloud * About * Back * Canonical * Press centre * Careers * Blog * Documentation * Resources * Partners * Contact us * Sign in * * Canonical Get to know Canonical, the company behind the products. * Ubuntu The world's favourite Linux OS for servers, desktops and IoT. * Ubuntu Pro One subscription for security maintenance, support, FIPS and other compliance certifications. * Snapcraft The app store for Linux: secure packages and ultra-reliable updates. * LXD A pure-container hypervisor. Run system containers and VMs at scale. * MAAS Build a bare metal cloud with super fast server provisioning. * OpenStack Upgrades, maintenance, support, and fully managed options for long-term, low-cost infra. * Ceph Software-defined storage that lowers your total cost of ownership. * Kubernetes App portability for K8s on VMware, Amazon, Azure, Google, Oracle, IBM and bare metal. * Juju Deploy, integrate and manage applications at any scale, on any infrastructure. -------------------------------------------------------------------------------- Also from Canonical Anbox Cloud Stream Android applications to any device. Launchpad The software collaboration platform behind Ubuntu. Ubuntu on public clouds Optimised Ubuntu for public clouds. Multipass Spin up Ubuntu VMs on Windows, Mac and Linux. Cloud-init Control and customise your cloud instances. Landscape Systems management and security patching for Ubuntu. Netplan Simplify and standardise complex network configuration. Charmed Kubeflow AI and MLOps at any scale, on any cloud. MicroCloud Deploy a fully functional cloud in minutes. -------------------------------------------------------------------------------- About * Canonical * Press centre * Careers * Blog * Documentation * Resources * Partners * Contact us Security * ESM * Livepatch * Certifications & Hardening * CVEs * Notices * Docker Images Your submission was sent successfully! Close You have successfully unsubscribed! Close Thank you for signing up for our newsletter! In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close CVE-2021-40812 Published: 8 September 2021 The GD Graphics Library (aka LibGD) through 2.3.2 has an out-of-bounds read because of the lack of certain gdGetBuf and gdPutBuf return value checks. NOTES AuthorNote mdeslaur php uses the system libgd2 leosilva the fix proposed is a partial one that address BMP and WebP but not GIF. no complete fix available from upstream as of 2021-11-08 rodrigo-zaiden still no complete fix from upstream as of 2022-11-25. PRIORITY Low CVSS 3 SEVERITY SCORE 6.5 Score breakdown STATUS Package Release Status libgd2 Launchpad, Ubuntu, Debian bionic Deferred (2022-11-25) focal Deferred (2022-11-25) hirsute Ignored (end of life) impish Ignored (end of life) jammy Deferred (2022-11-25) kinetic Ignored (end of life, was deferred [2022-11-25]) lunar Ignored (end of life, was deferred [2022-11-25]) mantic Deferred (2022-11-25) noble Deferred (2022-11-25) trusty Deferred (2022-11-25) upstream Needs triage xenial Deferred (2022-11-25) Patches: upstream: https://github.com/libgd/libgd/commit/6f5136821be86e7068fcdf651ae9420b5d42e9a9 php5 Launchpad, Ubuntu, Debian bionic Does not exist focal Does not exist hirsute Does not exist impish Does not exist jammy Does not exist kinetic Does not exist lunar Does not exist mantic Does not exist noble Does not exist trusty Not vulnerable (uses system gd) upstream Needs triage xenial Does not exist php7.0 Launchpad, Ubuntu, Debian bionic Does not exist focal Does not exist hirsute Does not exist impish Does not exist jammy Does not exist kinetic Does not exist lunar Does not exist mantic Does not exist noble Does not exist trusty Does not exist upstream Needs triage xenial Not vulnerable (uses system gd) php7.2 Launchpad, Ubuntu, Debian bionic Not vulnerable (uses system gd) focal Does not exist hirsute Does not exist impish Does not exist jammy Does not exist kinetic Does not exist lunar Does not exist mantic Does not exist noble Does not exist trusty Does not exist upstream Needs triage xenial Does not exist php7.3 Launchpad, Ubuntu, Debian bionic Does not exist focal Does not exist hirsute Does not exist impish Does not exist jammy Does not exist kinetic Does not exist lunar Does not exist mantic Does not exist noble Does not exist trusty Does not exist upstream Needs triage xenial Does not exist SEVERITY SCORE BREAKDOWN Parameter Value Base score 6.5 Attack vector Network Attack complexity Low Privileges required None User interaction Required Scope Unchanged Confidentiality None Integrity impact None Availability impact High Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H REFERENCES * https://github.com/libgd/libgd/issues/750#issuecomment-914872385 * https://github.com/libgd/libgd/issues/757 * https://www.cve.org/CVERecord?id=CVE-2021-40812 * NVD * Launchpad * Debian JOIN THE DISCUSSION * Ubuntu security updates mailing list * Security announcements mailing list CANONICAL IS OFFERING EXPANDED SECURITY MAINTENANCE Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages. 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