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-specificationFeedgenSun, 24 May 2026 19:34:54 +0000https://ubuntu.com/security/notices/USN-8279-2It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431) 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: - Cryptographic API; - Ethernet bonding driver; - SMB network file system; - Netfilter; - io_uring subsystem; - Packet sockets; - TLS protocol; (CVE-2024-35862, CVE-2024-50060, CVE-2026-23274, CVE-2026-23351, CVE-2026-31419, CVE-2026-31504, CVE-2026-31533, CVE-2026-43033, CVE-2026-43077, CVE-2026-43078) https://ubuntu.com/security/notices/USN-8279-2Fri, 22 May 2026 21:14:08 +0000https://ubuntu.com/security/notices/USN-8297-1Stonejiajia, Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in the Ubuntu Linux kernel did not properly perform permission checks in certain situations. A local attacker could possibly use this to gain elevated privileges. (CVE-2023-2640) Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in the Ubuntu Linux kernel did not properly perform permission checks in certain situations. A local attacker could possibly use this to gain elevated privileges. (CVE-2023-32629) 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; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU drivers; - HID subsystem; - Intel Trace Hub HW tracing drivers; - IIO ADC drivers; - IRQ chip drivers; - Modular ISDN driver; - LED subsystem; - UACCE accelerator framework; - Ethernet bonding driver; - Network drivers; - STMicroelectronics network drivers; - Ethernet team driver; - NVME drivers; - PHY drivers; - SLIMbus drivers; - W1 Dallas's 1-wire bus driver; - Xen hypervisor drivers; - BTRFS file system; - Ext4 file system; - Network file system (NFS) client; - Network file system (NFS) server daemon; - NTFS3 file system; - SMB network file system; - NFC subsystem; - BPF subsystem; - IRQ subsystem; - Memory management; - Bluetooth subsystem; - CAN network layer; - Networking core; - IPv4 networking; - IPv6 networking; - L2TP protocol; - NET/ROM layer; - Network traffic control; - SCTP protocol; - TLS protocol; - XFRM subsystem; - Creative Sound Blaster X-Fi driver; - USB sound devices; (CVE-2023-53421, CVE-2023-53520, CVE-2023-53662, CVE-2023-54207, CVE-2025-38057, CVE-2025-38125, CVE-2025-38232, CVE-2025-38408, CVE-2025-38591, CVE-2025-40149, CVE-2025-40164, CVE-2025-68211, CVE-2025-68340, CVE-2025-68365, CVE-2025-68725, CVE-2025-68817, CVE-2025-71162, CVE-2025-71163, CVE-2025-71185, CVE-2025-71186, CVE-2025-71188, CVE-2025-71190, CVE-2025-71191, CVE-2025-71194, CVE-2025-71196, CVE-2025-71197, CVE-2025-71199, CVE-2026-22997, CVE-2026-22998, CVE-2026-22999, CVE-2026-23001, CVE-2026-23003, CVE-2026-23011, CVE-2026-23026, CVE-2026-23033, CVE-2026-23037, CVE-2026-23038, CVE-2026-23049, CVE-2026-23056, CVE-2026-23058, CVE-2026-23061, CVE-2026-23063, CVE-2026-23064, CVE-2026-23071, CVE-2026-23073, CVE-2026-23075, CVE-2026-23076, CVE-2026-23078, CVE-2026-23080, CVE-2026-23083, CVE-2026-23084, CVE-2026-23085, CVE-2026-23087, CVE-2026-23089, CVE-2026-23090, CVE-2026-23091, CVE-2026-23093, CVE-2026-23095, CVE-2026-23096, CVE-2026-23097, CVE-2026-23098, CVE-2026-23099, CVE-2026-23101, CVE-2026-23103, CVE-2026-23105, CVE-2026-23108, CVE-2026-23112, CVE-2026-23119, CVE-2026-23120, CVE-2026-23121, CVE-2026-23124, CVE-2026-23125, CVE-2026-23128, CVE-2026-23133, CVE-2026-23145, CVE-2026-23146, CVE-2026-23150, CVE-2026-23164, CVE-2026-23167, CVE-2026-23170, CVE-2026-23209) https://ubuntu.com/security/notices/USN-8297-1Fri, 22 May 2026 20:56:35 +0000https://ubuntu.com/security/notices/USN-8280-2It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431) 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: - Cryptographic API; - Packet sockets; - TLS protocol; (CVE-2026-31504, CVE-2026-31533, CVE-2026-43033, CVE-2026-43077, CVE-2026-43078) https://ubuntu.com/security/notices/USN-8280-2Fri, 22 May 2026 19:27:09 +0000https://ubuntu.com/security/notices/USN-8281-2It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431) 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: - Cryptographic API; - Packet sockets; (CVE-2026-31504, CVE-2026-43033, CVE-2026-43077, CVE-2026-43078) https://ubuntu.com/security/notices/USN-8281-2Fri, 22 May 2026 19:17:13 +0000https://ubuntu.com/security/notices/USN-8277-2It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431) 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: - S390 architecture; - Cryptographic API; - GPU drivers; - Ethernet bonding driver; - Network file system (NFS) server daemon; - Distributed Switch Architecture; - Netfilter; - Control group (cgroup); - Kernel kexec() syscall; - Memory management; - MAC80211 subsystem; - Multipath TCP; - Packet sockets; - TLS protocol; - Unix domain sockets; (CVE-2025-71088, CVE-2025-71090, CVE-2025-71127, CVE-2025-71134, CVE-2025-71139, CVE-2025-71141, CVE-2025-71142, CVE-2025-71144, CVE-2025-71152, CVE-2025-71155, CVE-2026-23274, CVE-2026-23351, CVE-2026-23394, CVE-2026-31419, CVE-2026-31504, CVE-2026-31533, CVE-2026-43033, CVE-2026-43077, CVE-2026-43078) https://ubuntu.com/security/notices/USN-8277-2Fri, 22 May 2026 14:05:12 +0000https://ubuntu.com/security/notices/USN-8291-2Several 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: - SMB network file system; - Netfilter; - io_uring subsystem; (CVE-2024-35862, CVE-2024-50060, CVE-2026-23274, CVE-2026-23351) https://ubuntu.com/security/notices/USN-8291-2Fri, 22 May 2026 13:47:02 +0000https://ubuntu.com/security/notices/USN-8296-1Several 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; - x86 architecture; - Compute Acceleration Framework; - Drivers core; - Null block device driver; - Ublk userspace block driver; - Bluetooth drivers; - Counter interface drivers; - DMA engine subsystem; - DPLL subsystem; - GPU drivers; - HID subsystem; - Intel Trace Hub HW tracing drivers; - IIO ADC drivers; - IIO subsystem; - On-Chip Interconnect management framework; - IRQ chip drivers; - Modular ISDN driver; - LED subsystem; - Multiple devices driver; - UACCE accelerator framework; - MMC subsystem; - Ethernet bonding driver; - Network drivers; - Mellanox network drivers; - NVME drivers; - PHY drivers; - x86 platform drivers; - i.MX PM domains; - SCSI subsystem; - SLIMbus drivers; - SPI subsystem; - TCM subsystem; - W1 Dallas's 1-wire bus driver; - Xen hypervisor drivers; - BTRFS file system; - EFI Variable file system; - exFAT file system; - Ext4 file system; - HFS+ file system; - Network file system (NFS) client; - Network file system (NFS) server daemon; - NTFS3 file system; - SMB network file system; - Scheduler infrastructure; - Netfilter; - NFC subsystem; - Tracing infrastructure; - io_uring subsystem; - BPF subsystem; - Perf events; - Floating proportions library; - Memory management; - Bluetooth subsystem; - CAN network layer; - Ceph Core library; - Networking core; - IPv4 networking; - IPv6 networking; - L2TP protocol; - MAC80211 subsystem; - NET/ROM layer; - Network traffic control; - SCTP protocol; - TLS protocol; - Unix domain sockets; - VMware vSockets driver; - Wireless networking; - ALSA AC97 driver; - Generic PCM loopback sound driver; - Creative Sound Blaster X-Fi driver; - AMD SoC Alsa drivers; - Texas InstrumentS Audio (ASoC/HDA) drivers; - USB sound devices; - KVM subsystem; (CVE-2024-50004, CVE-2024-58096, CVE-2024-58097, CVE-2025-37926, CVE-2025-38201, CVE-2025-38591, CVE-2025-40039, CVE-2025-40082, CVE-2025-40149, CVE-2025-68351, CVE-2025-68358, CVE-2025-68365, CVE-2025-68725, CVE-2025-68749, CVE-2025-68803, CVE-2025-68823, CVE-2025-71160, CVE-2025-71162, CVE-2025-71163, CVE-2025-71180, CVE-2025-71182, CVE-2025-71183, CVE-2025-71184, CVE-2025-71185, CVE-2025-71186, CVE-2025-71188, CVE-2025-71189, CVE-2025-71190, CVE-2025-71191, CVE-2025-71192, CVE-2025-71193, CVE-2025-71194, CVE-2025-71195, CVE-2025-71196, CVE-2025-71197, CVE-2025-71198, CVE-2025-71199, CVE-2025-71200, CVE-2025-71220, CVE-2025-71222, CVE-2025-71224, CVE-2025-71225, CVE-2025-71268, CVE-2026-22976, CVE-2026-22977, CVE-2026-22978, CVE-2026-22979, CVE-2026-22980, CVE-2026-22982, CVE-2026-22984, CVE-2026-22990, CVE-2026-22991, CVE-2026-22992, CVE-2026-22994, CVE-2026-22996, CVE-2026-22997, CVE-2026-22998, CVE-2026-22999, CVE-2026-23000, CVE-2026-23001, CVE-2026-23003, CVE-2026-23005, CVE-2026-23006, CVE-2026-23010, CVE-2026-23011, CVE-2026-23019, CVE-2026-23020, CVE-2026-23021, CVE-2026-23025, CVE-2026-23026, CVE-2026-23030, CVE-2026-23031, CVE-2026-23032, CVE-2026-23033, CVE-2026-23035, CVE-2026-23037, CVE-2026-23038, CVE-2026-23047, CVE-2026-23049, CVE-2026-23050, CVE-2026-23053, CVE-2026-23054, CVE-2026-23056, CVE-2026-23057, CVE-2026-23058, CVE-2026-23059, CVE-2026-23061, CVE-2026-23062, CVE-2026-23063, CVE-2026-23064, CVE-2026-23065, CVE-2026-23068, CVE-2026-23069, CVE-2026-23071, CVE-2026-23073, CVE-2026-23075, CVE-2026-23076, CVE-2026-23078, CVE-2026-23080, CVE-2026-23083, CVE-2026-23084, CVE-2026-23085, CVE-2026-23086, CVE-2026-23087, CVE-2026-23088, CVE-2026-23089, CVE-2026-23090, CVE-2026-23091, CVE-2026-23093, CVE-2026-23094, CVE-2026-23095, CVE-2026-23096, CVE-2026-23097, CVE-2026-23098, CVE-2026-23099, CVE-2026-23101, CVE-2026-23102, CVE-2026-23103, CVE-2026-23105, CVE-2026-23107, CVE-2026-23108, CVE-2026-23110, CVE-2026-23113, CVE-2026-23116, CVE-2026-23119, CVE-2026-23120, CVE-2026-23121, CVE-2026-23123, CVE-2026-23124, CVE-2026-23125, CVE-2026-23126, CVE-2026-23128, CVE-2026-23129, CVE-2026-23131, CVE-2026-23133, CVE-2026-23135, CVE-2026-23136, CVE-2026-23139, CVE-2026-23140, CVE-2026-23141, CVE-2026-23142, CVE-2026-23144, CVE-2026-23145, CVE-2026-23146, CVE-2026-23148, CVE-2026-23150, CVE-2026-23151, CVE-2026-23156, CVE-2026-23159, CVE-2026-23160, CVE-2026-23163, CVE-2026-23164, CVE-2026-23166, CVE-2026-23167, CVE-2026-23168, CVE-2026-23170, CVE-2026-23172, CVE-2026-23173, CVE-2026-23176, CVE-2026-23178, CVE-2026-23179, CVE-2026-23180, CVE-2026-23182, CVE-2026-23187, CVE-2026-23190, CVE-2026-23191, CVE-2026-23193, CVE-2026-23198, CVE-2026-23200, CVE-2026-23202, CVE-2026-23204, CVE-2026-23205, CVE-2026-23206, CVE-2026-23212, CVE-2026-23213, CVE-2026-23214, CVE-2026-23215, CVE-2026-23216, CVE-2026-23254, CVE-2026-23256, CVE-2026-23257, CVE-2026-23258, CVE-2026-23260, CVE-2026-23261, CVE-2026-23262, CVE-2026-23264, CVE-2026-23274, CVE-2026-23351, CVE-2026-23394) https://ubuntu.com/security/notices/USN-8296-1Fri, 22 May 2026 13:39:49 +0000https://ubuntu.com/security/notices/USN-8295-1It was discovered that Evince did not properly sanitize command-line arguments in PDF /GoToR actions. If a user opened a specially crafted PDF file, an attacker could possibly use this issue to execute arbitrary code.https://ubuntu.com/security/notices/USN-8295-1Fri, 22 May 2026 13:16:26 +0000https://ubuntu.com/security/notices/USN-8294-1It was discovered that PostgreSQL did not correctly enforce authorization for CREATE TYPE. An attacker could possibly use this issue to execute arbitrary SQL functions. (CVE-2026-6472) It was discovered that PostgreSQL incorrectly handled large user input in multiple server features. An attacker could possibly use this issue to cause PostgreSQL to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2026-6473) It was discovered that PostgreSQL incorrectly handled format strings in the timeofday() function. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-6474) It was discovered that PostgreSQL incorrectly followed symbolic links in pg_basebackup and pg_rewind. An attacker could possibly use this issue to overwrite local files and execute arbitrary code. (CVE-2026-6475) It was discovered that PostgreSQL had an SQL injection vulnerability in pg_createsubscriber. An attacker could possibly use this issue to execute arbitrary SQL as a superuser. This issue only affected Ubuntu 25.10 and Ubuntu 26.04 LTS. (CVE-2026-6476) It was discovered that PostgreSQL used an unsafe libpq function in large object operations. An attacker could possibly use this issue to overwrite client memory and execute arbitrary code. (CVE-2026-6477) It was discovered that PostgreSQL did not compare MD5-hashed passwords in constant time. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-6478) It was discovered that PostgreSQL had uncontrolled recursion during SSL and GSS negotiation. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-6479) It was discovered that PostgreSQL incorrectly handled array length mismatches in pg_restore_attribute_stats(). An attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-6575) It was discovered that PostgreSQL had a stack buffer overflow in the refint module. An attacker could use this issue to cause PostgreSQL to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-6637) It was discovered that PostgreSQL had an SQL injection vulnerability in logical replication REFRESH PUBLICATION. An attacker could possibly use this issue to execute arbitrary SQL. This issue only affected Ubuntu 24.04 LTS, Ubuntu 25.10, and Ubuntu 26.04 LTS. (CVE-2026-6638)https://ubuntu.com/security/notices/USN-8294-1Thu, 21 May 2026 20:39:48 +0000https://ubuntu.com/security/notices/USN-8293-1Vitaly Simonovich discovered that Bind could exhaust memory during GSS-API TKEY negotiation. A remote attacker could possibly use this issue to cause Bind to use excessive resources, leading to a denial of service. (CVE-2026-3039) Shuhan Zhang discovered that Bind incorrectly handled self-pointed glue records. A remote attacker could possibly use this issue to use Bind in denial of service amplification attacks against other systems. (CVE-2026-3592) Naresh Kandula Parmar discovered that Bind incorrectly handled memory in the DNS-over-HTTPS implementation. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service, or execute arbitrary code. This issue only affected Ubuntu 25.10 and Ubuntu 26.04 LTS. (CVE-2026-3593) It was discovered that Bind incorrectly handled DNS messages whose class was not IN. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2026-5946) Naoki Wakamatsu discovered that Bind incorrectly handled SIG(0) validation during a query flood. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. This issue only affected Ubuntu 25.10 and Ubuntu 26.04 LTS. (CVE-2026-5947) Billy Baraja discovered that Bind had an unbounded resend loop in the resolver. A remote attacker could possibly use this issue to cause Bind to use excessive resources, leading to a denial of service. (CVE-2026-5950)https://ubuntu.com/security/notices/USN-8293-1Thu, 21 May 2026 19:11:14 +0000