Filtered by vendor Canonical
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Filtered by product Ubuntu
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Total
15 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2024-5300 | 1 Canonical | 1 Ubuntu | 2026-07-27 | 5.6 Medium |
| An access control bypass and information disclosure vulnerability exists in the base AppArmor security profile configuration of Canonical snapd. The abstraction rules located in /etc/apparmor.d/abstractions/nss-systemd (inherited via ) inadvertently permit strictly confined snap applications, which lack the privileged account-control interface, to interact directly with the io.systemd.Multiplexer and io.systemd.NameServiceSwitch UNIX domain sockets under /run/systemd/userdb/. On systems where the systemd-userdbd service is installed and operational, the service fails to distinguish between an unconfined root user on the host system and a restricted root user running within a snap application's sandbox (such as a daemon or configuration hook). Because systemd-userdbd returns "complete" user records—including sensitive hashed user passwords from /etc/shadow—when queried by a process running as root, a compromised or malicious strictly confined snap executing code as root can successfully query the Varlink interface to retrieve all system password hashes, bypassing intended snap sandbox restrictions. This issue is mitigated by the fact that systemd-userdbd is not installed by default on standard Ubuntu deployments. | ||||
| CVE-2026-9494 | 1 Canonical | 2 Ubuntu, Ubuntu-pro-client | 2026-07-23 | 5.5 Medium |
| An information disclosure vulnerability exists in Canonical ubuntu-pro-client (formerly ubuntu-advantage-tools). The client validates Ubuntu Pro APT credentials by executing /usr/lib/apt/apt-helper using the download-file command. During this process, the secret bearer token is embedded directly in the cleartext URL component passed via the command-line arguments (argv), resulting in a URL format such as https://bearer:<token>@esm.ubuntu.com/.../. On systems utilizing a default-mounted /proc file system where process-hiding mitigations (such as hidepid) are disabled, an unprivileged local attacker can monitor system processes and read the sensitive bearer token directly from /proc/cmdline while the helper process is actively running. This leaked token can subsequently be used to gain unauthorized access to the victim's Ubuntu Pro or Expanded Security Maintenance (ESM) repositories. | ||||
| CVE-2026-11386 | 1 Canonical | 2 Ubuntu, Ubuntu-pro-client | 2026-07-23 | 9 Critical |
| An input validation and injection vulnerability exists in Canonical ubuntu-pro-client (formerly ubuntu-advantage-tools). The client constructs APT source files (such as /etc/apt/sources.list.d/ubuntu-.list or their DEB822 equivalents) using data received directly from the contract server response via the directives.suites[] and directives.aptURL fields. Because the client utilizes Python's str.format() to write these files without performing escaping, validation, or newline character filtering, a malicious or tampered contract response containing embedded newline (\n) characters can successfully inject arbitrary, attacker-controlled deb configuration lines into root-owned APT sources. When combined with the unvalidated additionalPackages[] field—which is passed positionally into a root-executed apt-get install command—an attacker capable of spoofing or manipulating the contract response (e.g., via a compromised internal infrastructure, an intercepted connection utilizing a trusted CA, or local logical bugs) can force the client to fetch and install malicious packages. This ultimately leads to arbitrary code execution with root privileges on the affected system. This component is preinstalled on supported Ubuntu Server releases and auto-attaches by default on cloud provider Ubuntu Pro images. | ||||
| CVE-2026-12391 | 1 Canonical | 2 Ubuntu, Ubuntu-pro-client | 2026-07-23 | 5 Medium |
| An insecure symlink following vulnerability exists in Canonical ubuntu-pro-client (formerly ubuntu-advantage-tools) within the pro collect-logs command framework. The utility creates or utilizes predictable temporary file paths or user-accessible log directories when gathering diagnostic information without verifying the file type or ownership. An unprivileged local attacker can exploit this behavior by creating a symbolic link (symlink) at a predictable destination path pointing to an arbitrary, root-readable file (such as /etc/shadow or private files within /root). When a root administrator or operator subsequently executes the pro collect-logs command, the tool follows the user-controlled symlink, reads the target file, and compresses its contents into the resulting diagnostic support archive. Because the output archive remains readable by the unprivileged user, the attacker can extract and read the sensitive root-owned files, leading to a complete information disclosure of system secrets. | ||||
| CVE-2026-15226 | 1 Canonical | 1 Ubuntu | 2026-07-23 | 8.4 High |
| A sandbox confinement bypass vulnerability exists in Canonical snapd within its internal execution environment compiler (snap-confine). The default seccomp security templates generated by the engine to restrict system calls do not filter or reject process operations capable of creating or manipulating file execution flags with set-user-ID attributes. Consequently, an application running within a strictly confined snap environment can successfully compile or drop binaries and apply setuid properties to them. If a compromised or malicious process inside the snap sandbox executes these generated setuid binaries, it can potentially circumvent architectural sandboxing assumptions, drop intended restriction policies, or execute privileged actions inside the container namespace that should otherwise be strictly blocked. The vulnerability has been resolved by hardening the seccomp template engine to block the execution and creation of setuid executables by sandboxed snap processes. | ||||
| CVE-2026-8933 | 1 Canonical | 1 Ubuntu | 2026-07-23 | 7.8 High |
| A local privilege escalation vulnerability exists in snap-confine, a set-capabilities core component used internally by Canonical snapd to construct the secure execution environment for snap applications. This vulnerability uniquely affects versions of snap-confine configured with set-capabilities (rather than standard set-uid-root installations). Due to a flaw in how privilege boundaries or security sandboxes are initialized when the binary runs under limited ambient capabilities, a local, unprivileged attacker can exploit this behavior to bypass intended restrictions and execute arbitrary code. Successful exploitation allows the local user to elevate their privileges to full root authority. | ||||
| CVE-2026-10037 | 1 Canonical | 1 Ubuntu | 2026-07-14 | 8.8 High |
| A sandbox escape vulnerability exists in the OpenJDK packages provided in Ubuntu. The .jar MIME handlers installed by these packages execute files marked as executable when the mailcap package is installed. A compromised or malicious sandboxed application with access to the OpenURI portal via xdg-desktop-portal-gtk can write a malicious .jar file to the host file system, set its executable bit, and trigger the handler to execute arbitrary code outside of the sandbox environment. | ||||
| CVE-2026-3888 | 1 Canonical | 2 Ubuntu, Ubuntu Linux | 2026-06-04 | 7.8 High |
| Local privilege escalation in snapd on Linux allows local attackers to get root privilege by re-creating snap's private /tmp directory when systemd-tmpfiles is configured to automatically clean up this directory. This issue affects Ubuntu 16.04 LTS, 18.04 LTS, 20.04 LTS, 22.04 LTS, and 24.04 LTS. | ||||
| CVE-2025-15480 | 1 Canonical | 2 Ubuntu, Ubuntu Desktop Provision | 2026-04-17 | 9.1 Critical |
| In Ubuntu, ubuntu-desktop-provision version 24.04.4 could leak sensitive user credentials during crash reporting. Upon installation failure, if a user submitted a bug report to Launchpad, ubuntu-desktop-provision could include the user's password hash in the attached logs. | ||||
| CVE-2025-14551 | 1 Canonical | 2 Ubuntu, Ubuntu Subiquity | 2026-04-17 | 8.1 High |
| In Ubuntu, Subiquity version 24.04.4 could leak sensitive user credentials during crash reporting. Upon installation failure, if a user submitted a bug report to Launchpad, Subiquity could include certain user credentials, such as the user's plaintext Wi-Fi password, in the attached logs. | ||||
| CVE-2025-43914 | 4 Canonical, Dell, Linux and 1 more | 5 Ubuntu, Data Domain Operating System, Powerprotect Data Domain and 2 more | 2026-02-26 | 7.5 High |
| Dell PowerProtect Data Domain BoostFS for Linux Ubuntu systems of Feature Release versions 7.7.1.0 through 8.3.0.15, LTS2025 release version 8.3.1.0, LTS2024 release versions 7.13.1.0 through 7.13.1.30, LTS 2023 release versions 7.10.1.0 through 7.10.1.60, contain an Incorrect Privilege Assignment vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Unauthorized access. | ||||
| CVE-2025-2486 | 3 Canonical, Tianocore, Ubuntu | 4 Ubuntu, Edk2, Edk2 and 1 more | 2025-12-19 | 8.8 High |
| The Ubuntu edk2 UEFI firmware packages accidentally allowed the UEFI Shell to be accessed in Secure Boot environments, possibly allowing bypass of Secure Boot constraints. Versions 2024.05-2ubuntu0.3 and 2024.02-2ubuntu0.3 disable the Shell. Some previous versions inserted a secure-boot-based decision to continue running inside the Shell itself, which is believed to be sufficient to enforce Secure Boot restrictions. This is an additional repair on top of the incomplete fix for CVE-2023-48733. | ||||
| CVE-2025-5467 | 1 Canonical | 2 Apport, Ubuntu | 2025-12-17 | 3.3 Low |
| It was discovered that process_crash() in data/apport in Canonical's Apport crash reporting tool may create crash files with incorrect group ownership, possibly exposing crash information beyond expected or intended groups. | ||||
| CVE-2014-1949 | 3 Canonical, Gnome, Linuxmint | 3 Ubuntu, Gtk, Linux Mint | 2025-04-12 | N/A |
| GTK+ 3.10.9 and earlier, as used in cinnamon-screensaver, gnome-screensaver, and other applications, allows physically proximate attackers to bypass the lock screen by pressing the menu button. | ||||
| CVE-2014-1424 | 2 Canonical, Ubuntu | 2 Ubuntu, Apparmor | 2025-04-12 | N/A |
| apparmor_parser in the apparmor package before 2.8.95~2430-0ubuntu5.1 in Ubuntu 14.04 allows attackers to bypass AppArmor policies via unspecified vectors, related to a "miscompilation flaw." | ||||
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