https://ubuntu.com/security/notices/rss.xmlRecent content on Ubuntu security notices2026 Canonical Ltd. Ubuntu and Canonical are registered trademarks of Canonical Ltd.http://www.rssboard.org/rss-specificationFeedgenTue, 14 Apr 2026 20:30:00 +0000https://ubuntu.com/security/notices/USN-8138-2USN-8138-1 fixed a vulnerability in tar-rs. This update provides the corresponding update for Ubuntu 20.04 LTS. Original advisory details: It was discovered that tar-rs incorrectly handled symlinks when unpacking a tar archive. If a user or automated system were tricked into processing a specially crafted tar archive, a remote attacker could use this issue to modify permissions of arbitrary directories outside the extraction root, and possibly escalate privileges.https://ubuntu.com/security/notices/USN-8138-2Tue, 14 Apr 2026 20:01:22 +0000https://ubuntu.com/security/notices/USN-8168-2USN-8168-1 fixed a vulnerability in Rust. This update provides the corresponding update to Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Original advisory details: It was discovered that tar-rs embedded in rustc incorrectly handled symlinks when unpacking a tar archive. If a user or automated system were tricked into processing a specially crafted tar archive, a remote attacker could use this issue to modify permissions of arbitrary directories outside the extraction root, and possibly escalate privileges.https://ubuntu.com/security/notices/USN-8168-2Tue, 14 Apr 2026 18:01:04 +0000https://ubuntu.com/security/notices/USN-8174-1It was discovered that XML::Parser incorrectly handled certain multi-byte UTF-8 characters. If a user or automated system were tricked into processing specially crafted XML data, a remote attacker could use this issue to cause XML::Parser to crash, resulting in a denial of service or to possibly execute arbitrary code. (CVE-2006-10002) It was discovered that XML::Parser incorrectly handled very deep element nesting. If a user or automated system were tricked into processing specially crafted XML data, a remote attacker could use this issue to cause XML::Parser to crash, resulting in a denial of service or to possibly execute arbitrary code (CVE-2006-10003)https://ubuntu.com/security/notices/USN-8174-1Tue, 14 Apr 2026 08:13:19 +0000https://ubuntu.com/security/notices/USN-8173-1It was discovered that polkit incorrectly handled nested elements in XML policy files. If an administrator were tricked into installing a malicious policy file, a remote attacker could possibly use this issue to cause polkit to crash, resulting in a denial of service. (CVE-2025-7519) Pavel Kohout discovered that the polkit polkit-agent-helper-1 utility incorrectly handled long input. A local attacker could possibly use this issue to cause polkit to crash, resulting in a denial of service. (CVE-2026-4897)https://ubuntu.com/security/notices/USN-8173-1Tue, 14 Apr 2026 08:02:28 +0000https://ubuntu.com/security/notices/USN-8148-6Several 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: - Cryptographic API; - Netfilter; - Network traffic control; (CVE-2026-23060, CVE-2026-23074, CVE-2026-23111) https://ubuntu.com/security/notices/USN-8148-6Tue, 14 Apr 2026 00:07:40 +0000https://ubuntu.com/security/notices/USN-8149-3Several 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: - Cryptographic API; - Netfilter; - Network traffic control; (CVE-2026-23060, CVE-2026-23074, CVE-2026-23111) https://ubuntu.com/security/notices/USN-8149-3Tue, 14 Apr 2026 00:06:03 +0000https://ubuntu.com/security/notices/USN-8163-2Qualys discovered that several vulnerabilities existed in the AppArmor Linux kernel Security Module (LSM). An unprivileged local attacker could use these issues to load, replace, and remove arbitrary AppArmor profiles causing denial of service, exposure of sensitive information (kernel memory), local privilege escalation, or possibly escape a container. (LP: #2143853, CVE-2026-23268, CVE-2026-23269, CVE-2026-23403, CVE-2026-23404, CVE-2026-23405, CVE-2026-23406, CVE-2026-23407, CVE-2026-23408, CVE-2026-23409, CVE-2026-23410, CVE-2026-23411) 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; - Nios II architecture; - PowerPC architecture; - Sun Sparc architecture; - User-Mode Linux (UML); - x86 architecture; - Block layer subsystem; - Cryptographic API; - ACPI drivers; - ATM drivers; - Drivers core; - Network block device driver; - Bluetooth drivers; - Bus devices; - Character device driver; - Hardware random number generator core; - TPM device driver; - Data acquisition framework and drivers; - Counter interface drivers; - CPU frequency scaling framework; - DMA engine subsystem; - Intel Stratix 10 firmware drivers; - GPU drivers; - HID subsystem; - Hardware monitoring drivers; - CoreSight HW tracing drivers; - IIO subsystem; - InfiniBand drivers; - Input Device core drivers; - Input Device (Miscellaneous) drivers; - Input Device (Tablet) drivers; - ISDN/mISDN subsystem; - Macintosh device drivers; - Multiple devices driver; - Media drivers; - MOST (Media Oriented Systems Transport) drivers; - MTD block device drivers; - Network drivers; - Mellanox network drivers; - Texas Instruments network drivers; - Ethernet team driver; - MediaTek network drivers; - NVME drivers; - PA-RISC drivers; - PCI subsystem; - Performance monitor drivers; - Pin controllers subsystem; - Chrome hardware platform drivers; - x86 platform drivers; - ARM PM domains; - PPS (Pulse Per Second) driver; - PWM drivers; - Voltage and Current Regulator drivers; - S/390 drivers; - SCSI subsystem; - Texas Instruments SoC drivers; - SPI subsystem; - Realtek RTL8723BS SDIO drivers; - TCM subsystem; - Userspace I/O drivers; - Cadence USB3 driver; - DesignWare USB3 driver; - USB Gadget drivers; - USB Host Controller drivers; - Renesas USBHS Controller drivers; - USB Mass Storage drivers; - USB Type-C Connector System Software Interface driver; - Backlight driver; - Framebuffer layer; - Watchdog drivers; - BFS file system; - BTRFS file system; - File systems infrastructure; - Ext4 file system; - F2FS file system; - FUSE (File system in Userspace); - HFS file system; - HFS+ file system; - HugeTLB file system; - Journaling layer for block devices (JBD2); - JFS file system; - Network file system (NFS) client; - Network file system (NFS) server daemon; - File system notification infrastructure; - NTFS3 file system; - OCFS2 file system; - OrangeFS file system; - Proc file system; - SMB network file system; - SquashFS file system; - UDF file system; - XFS file system; - BPF subsystem; - Ethernet bridge; - Memory management; - padata parallel execution mechanism; - IP tunnels definitions; - Network traffic control; - Network sockets; - XFRM subsystem; - io_uring subsystem; - Control group (cgroup); - Locking primitives; - Padata parallel execution mechanism; - PID allocator; - Scheduler infrastructure; - Shadow Call Stack mechanism; - Tracing infrastructure; - 9P file system network protocol; - Bluetooth subsystem; - CAIF protocol; - CAN network layer; - Ceph Core library; - Networking core; - Ethtool driver; - HSR network protocol; - IPv4 networking; - IPv6 networking; - MAC80211 subsystem; - Multipath TCP; - Netfilter; - NET/ROM layer; - NFC subsystem; - Open vSwitch; - RF switch subsystem; - Rose network layer; - SCTP protocol; - Sun RPC protocol; - TIPC protocol; - Unix domain sockets; - VMware vSockets driver; - Wireless networking; - Rust bindings mechanism; - Integrity Measurement Architecture(IMA) framework; - Key management; - Simplified Mandatory Access Control Kernel framework; - FireWire sound drivers; - Turtle Beach Wavefront ALSA driver; - Intel ASoC drivers; - STMicroelectronics SoC drivers; - USB sound devices; (CVE-2022-49465, CVE-2022-49635, CVE-2023-53041, CVE-2024-36903, CVE-2024-36927, CVE-2024-37354, CVE-2024-41014, CVE-2024-46830, CVE-2024-47666, CVE-2024-49968, CVE-2024-53114, CVE-2024-56538, CVE-2024-58011, CVE-2025-21780, CVE-2025-21861, CVE-2025-22022, CVE-2025-22058, CVE-2025-22111, CVE-2025-22121, CVE-2025-23143, CVE-2025-37849, CVE-2025-38022, CVE-2025-38129, CVE-2025-38236, CVE-2025-38248, CVE-2025-38556, CVE-2025-38584, CVE-2025-39869, CVE-2025-39873, CVE-2025-39876, CVE-2025-39880, CVE-2025-39883, CVE-2025-39885, CVE-2025-39907, CVE-2025-39911, CVE-2025-39913, CVE-2025-39923, CVE-2025-39934, CVE-2025-39937, CVE-2025-39943, CVE-2025-39945, CVE-2025-39949, CVE-2025-39951, CVE-2025-39953, CVE-2025-39955, CVE-2025-39967, CVE-2025-39968, CVE-2025-39969, CVE-2025-39970, CVE-2025-39971, CVE-2025-39972, CVE-2025-39973, CVE-2025-39980, CVE-2025-39985, CVE-2025-39986, CVE-2025-39987, CVE-2025-39988, CVE-2025-39994, CVE-2025-39995, CVE-2025-39996, CVE-2025-39998, CVE-2025-40001, CVE-2025-40006, CVE-2025-40011, CVE-2025-40020, CVE-2025-40021, CVE-2025-40026, CVE-2025-40027, CVE-2025-40029, CVE-2025-40030, CVE-2025-40035, CVE-2025-40040, CVE-2025-40042, CVE-2025-40043, CVE-2025-40044, CVE-2025-40048, CVE-2025-40049, CVE-2025-40053, CVE-2025-40055, CVE-2025-40060, CVE-2025-40068, CVE-2025-40070, CVE-2025-40078, CVE-2025-40081, CVE-2025-40083, CVE-2025-40085, CVE-2025-40087, CVE-2025-40088, CVE-2025-40092, CVE-2025-40094, CVE-2025-40105, CVE-2025-40106, CVE-2025-40109, CVE-2025-40110, CVE-2025-40111, CVE-2025-40112, CVE-2025-40115, CVE-2025-40116, CVE-2025-40118, CVE-2025-40120, CVE-2025-40121, CVE-2025-40124, CVE-2025-40125, CVE-2025-40126, CVE-2025-40127, CVE-2025-40134, CVE-2025-40140, CVE-2025-40153, CVE-2025-40154, CVE-2025-40167, CVE-2025-40171, CVE-2025-40173, CVE-2025-40178, CVE-2025-40179, CVE-2025-40183, CVE-2025-40187, CVE-2025-40188, CVE-2025-40194, CVE-2025-40200, CVE-2025-40204, CVE-2025-40205, CVE-2025-40211, CVE-2025-40215, CVE-2025-40219, CVE-2025-40220, CVE-2025-40223, CVE-2025-40231, CVE-2025-40233, CVE-2025-40240, CVE-2025-40243, CVE-2025-40244, CVE-2025-40245, CVE-2025-40248, CVE-2025-40252, CVE-2025-40253, CVE-2025-40254, CVE-2025-40257, CVE-2025-40258, CVE-2025-40259, CVE-2025-40261, CVE-2025-40262, CVE-2025-40263, CVE-2025-40264, CVE-2025-40269, CVE-2025-40271, CVE-2025-40272, CVE-2025-40273, CVE-2025-40275, CVE-2025-40277, CVE-2025-40278, CVE-2025-40279, CVE-2025-40280, CVE-2025-40281, CVE-2025-40282, CVE-2025-40283, CVE-2025-40304, CVE-2025-40306, CVE-2025-40308, CVE-2025-40309, CVE-2025-40312, CVE-2025-40313, CVE-2025-40314, CVE-2025-40315, CVE-2025-40317, CVE-2025-40319, CVE-2025-40321, CVE-2025-40322, CVE-2025-40324, CVE-2025-40331, CVE-2025-40342, CVE-2025-40343, CVE-2025-40345, CVE-2025-40346, CVE-2025-40349, CVE-2025-40351, CVE-2025-40360, CVE-2025-40363, CVE-2025-68168, CVE-2025-68176, CVE-2025-68177, CVE-2025-68185, CVE-2025-68191, CVE-2025-68192, CVE-2025-68194, CVE-2025-68200, CVE-2025-68204, CVE-2025-68217, CVE-2025-68220, CVE-2025-68227, CVE-2025-68229, CVE-2025-68238, CVE-2025-68241, CVE-2025-68244, CVE-2025-68245, CVE-2025-68249, CVE-2025-68254, CVE-2025-68255, CVE-2025-68257, CVE-2025-68258, CVE-2025-68261, CVE-2025-68264, CVE-2025-68266, CVE-2025-68282, CVE-2025-68284, CVE-2025-68285, CVE-2025-68286, CVE-2025-68287, CVE-2025-68288, CVE-2025-68289, CVE-2025-68290, CVE-2025-68295, CVE-2025-68301, CVE-2025-68302, CVE-2025-68303, CVE-2025-68308, CVE-2025-68312, CVE-2025-68321, CVE-2025-68325, CVE-2025-68327, CVE-2025-68328, CVE-2025-68330, CVE-2025-68331, CVE-2025-68332, CVE-2025-68335, CVE-2025-68336, CVE-2025-68337, CVE-2025-68339, CVE-2025-68344, CVE-2025-68346, CVE-2025-68349, CVE-2025-68354, CVE-2025-68362, CVE-2025-68364, CVE-2025-68366, CVE-2025-68367, CVE-2025-68372, CVE-2025-68724, CVE-2025-68727, CVE-2025-68728, CVE-2025-68732, CVE-2025-68733, CVE-2025-68734, CVE-2025-68740, CVE-2025-68746, CVE-2025-68757, CVE-2025-68758, CVE-2025-68759, CVE-2025-68764, CVE-2025-68765, CVE-2025-68767, CVE-2025-68769, CVE-2025-68771, CVE-2025-68774, CVE-2025-68776, CVE-2025-68777, CVE-2025-68780, CVE-2025-68782, CVE-2025-68783, CVE-2025-68785, CVE-2025-68787, CVE-2025-68788, CVE-2025-68795, CVE-2025-68796, CVE-2025-68797, CVE-2025-68799, CVE-2025-68800, CVE-2025-68801, CVE-2025-68803, CVE-2025-68804, CVE-2025-68808, CVE-2025-68813, CVE-2025-68814, CVE-2025-68815, CVE-2025-68816, CVE-2025-68818, CVE-2025-68819, CVE-2025-68820, CVE-2025-71064, CVE-2025-71066, CVE-2025-71068, CVE-2025-71069, CVE-2025-71075, CVE-2025-71077, CVE-2025-71078, CVE-2025-71079, CVE-2025-71081, CVE-2025-71082, CVE-2025-71083, CVE-2025-71084, CVE-2025-71085, CVE-2025-71086, CVE-2025-71087, CVE-2025-71091, CVE-2025-71093, CVE-2025-71094, CVE-2025-71096, CVE-2025-71097, CVE-2025-71098, CVE-2025-71102, CVE-2025-71104, CVE-2025-71105, CVE-2025-71108, CVE-2025-71111, CVE-2025-71112, CVE-2025-71113, CVE-2025-71114, CVE-2025-71116, CVE-2025-71118, CVE-2025-71120, CVE-2025-71121, CVE-2025-71125, CVE-2025-71127, CVE-2025-71131, CVE-2025-71132, CVE-2025-71133, CVE-2025-71136, CVE-2025-71137, CVE-2025-71147, CVE-2025-71154, CVE-2025-71180, CVE-2025-71182, CVE-2026-22976, CVE-2026-22977, CVE-2026-22978, CVE-2026-22980, CVE-2026-22982, CVE-2026-22984, CVE-2026-22990, CVE-2026-22991, CVE-2026-22992, CVE-2026-23019, CVE-2026-23020, CVE-2026-23021, CVE-2026-23047, CVE-2026-23060, CVE-2026-23074, CVE-2026-23111, CVE-2026-23202, CVE-2026-23207) https://ubuntu.com/security/notices/USN-8163-2Mon, 13 Apr 2026 23:59:31 +0000https://ubuntu.com/security/notices/USN-8172-1It was discovered that kvmtool did not properly manage memory under certain circumstances. A malicious guest attacker could use this issue to cause kvmtool to crash, leading to a denial of service, or possibly execute arbitrary code on the host system. (CVE-2021-45464) It was discovered that kvmtool incorrectly handled the 9p passthrough file system. A malicious guest attacker could possibly use this issue to open special files, escape the exported 9p tree, and execute arbitrary code on the host system. (CVE-2023-2861)https://ubuntu.com/security/notices/USN-8172-1Mon, 13 Apr 2026 18:27:37 +0000https://ubuntu.com/security/notices/USN-8171-1Nathan Mills discovered that Vim could crash when parsing certain regular expressions. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 25.10 (CVE-2026-32249) It was discovered that Vim did not properly sanitize user input. An attacker could possibly use this issue to execute arbitrary commands. (CVE-2026-33412) Avishay Matayev discovered that Vim's modeline sandbox could be bypassed when opening a maliciously-crafted file. An attacker could possibly use this issue to execute arbitrary commands. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 25.10. (CVE-2026-34982)https://ubuntu.com/security/notices/USN-8171-1Mon, 13 Apr 2026 16:56:28 +0000https://ubuntu.com/security/notices/USN-8170-1It was discovered that Corosync incorrectly handled the membership commit token validity check. A remote attacker could use this issue to cause Corosync to crash, resulting in a denial of service, or to possibly obtain a small quantity of sensitive information. (CVE-2026-35091) It was discovered that Corosync incorrectly handled join message validation. A remote attacker could possibly use this issue to cause Corosync to crash, resulting in a denial of service. (CVE-2026-35092)https://ubuntu.com/security/notices/USN-8170-1Mon, 13 Apr 2026 13:19:14 +0000