USN-8918-1 linux-azure, linux-azure-fde, linux-azure-fips vulnerabilities

It was discovered that some AMD processors did not properly perform Reverse Map Table RMP checks when the IOMMU accessed certain host buffers. A local attacker with hypervisor access could possibly use this to trigger an out-of-bounds condition and compromise the integrity of SEV-SNP guest memory...

USN-8923-1 linux, linux-aws, linux-fips, linux-kvm, linux-lts-xenial 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: - SCSI subsystem; - Bluetooth subsystem; CVE-2022-49111, CVE-2022-49114...

USN-8919-1 linux, linux-aws, linux-azure, linux-azure-5.4, linux-fips, linux-gcp, linux-gcp-5.4, linux-gcp-fips, linux-hwe-5.4, linux-iot, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4, linux-xilinx-zynqmp 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: - Ethernet bonding driver; - Network drivers; - F2FS file system; - Tracing infrastructure; - iouring subsystem; -...

USN-8915-1 ffmpeg vulnerabilities

Momoko Shiraishi discovered that FFmpeg did not correctly handle certain memory operations. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. CVE-2026-30754 It...

USN-8875-2 linux-nvidia vulnerabilities

It was discovered that the i.MX clock driver in the Linux kernel did not properly handle certain memory allocation failure conditions, leading to a null pointer dereference vulnerability. A local attacker could possibly use this to cause a denial of service system crash. CVE-2022-3114 Several...

USN-8905-2 linux-gcp 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; - MIPS architecture; - x86 architecture; - Intel NPU Driver; - Auxiliary...

USN-8908-1 bluez vulnerabilities

Michael Bommarito discovered that BlueZ incorrectly handled codec capability storage in the A2DP profile. An attacker could possibly use this issue to cause a stack buffer overflow, resulting in a denial of service or arbitrary code execution. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22....

USN-8910-1 libxml2 vulnerabilities

Yirou Yang discovered that libxml2 incorrectly handled certain XML catalogs. If a user or automated system was tricked into processing a specially crafted XML catalog, an attacker could possibly use this issue to cause libxml2 to crash, resulting in a denial of service. CVE-2026-76781 It was...

USN-8909-1 libde265 vulnerability

It was discovered that libde265 did not properly validate certain crafted H.265 bitstreams, leading to a NULL pointer dereference. An attacker could possibly use this issue to cause libde265 to crash, resulting in a denial of service...

USN-8903-1 linux, linux-aws, linux-aws-6.8, linux-aws-fips, linux-fips, linux-realtime, linux-realtime-6.8 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; - MIPS architecture; - x86 architecture; - Intel NPU Driver; - Auxiliary...

USN-8901-1 erlang vulnerabilities

Wander Nauta discovered that Erlang incorrectly handled absolute paths when extracting zip archives. An attacker could possibly use this issue to write arbitrary files outside of the intended directory. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. CVE-2025-47...

USN-8899-1 libpng1.6 vulnerability

Ze Sheng discovered that libpng incorrectly handled certain compressed data chunks in PNG files. An attacker could possibly use this issue to cause a denial of service...

USN-8898-1 apache2 vulnerabilities

It was discovered that Apache HTTP Server's modrewrite module incorrectly handled memory when performing certain variable lookups. A remote attacker could possibly use this issue to cause a denial of service or execute arbitrary code. CVE-2026-56154 Lucian Nitescu, Simon Kappel, and Gianluca...

USN-8895-1 sudo vulnerability

It was discovered that Sudo did not properly handle time-based access restrictions when sudoers rules used NOTBEFORE or NOTAFTER with timestamps omitting the trailing timezone indicator. A local attacker could possibly use this issue to execute commands outside the intended time window by...

USN-8894-1 poppler vulnerabilities

It was discovered that Poppler had an integer overflow in FoFiTrueType::cvtSfnts. An attacker could possibly use this issue to cause Poppler to crash, resulting in a denial of service, or execute arbitrary code. CVE-2026-102620 It was discovered that Poppler had an integer overflow in...

USN-8892-1 wsl-pro-service vulnerability

Darshan U discovered that Ubuntu Pro for WSL exposed the attach token in command-line arguments when enabling a subscription on a WSL instance. An attacker could possibly use this issue to obtain sensitive information and gain unauthorized access to Ubuntu Pro repositories...

USN-8885-1 fluidsynth vulnerabilities

It was discovered that FluidSynth did not properly validate the channel argument of the pitchbendrange command. A remote attacker could possibly use this issue to cause FluidSynth to crash, resulting in a denial of service, or execute arbitrary code. CVE-2026-58264 It was discovered that FluidSyn...

USN-8887-1 linux, linux-aws, linux-gcp, linux-gke, linux-ibm, linux-oracle, linux-realtime vulnerabilities

It was discovered that some AMD processors did not properly perform Reverse Map Table RMP checks when the IOMMU accessed certain host buffers. A local attacker with hypervisor access could possibly use this to trigger an out-of-bounds condition and compromise the integrity of SEV-SNP guest memory...

USN-8883-1 golang-1.18, golang-1.21, golang-1.24 vulnerability

It was discovered that the Go x/net/idna package incorrectly handled certain Punycode-encoded labels that decoded to ASCII-only labels. An attacker could possibly use this issue to bypass hostname-based access controls and escalate privileges...

USN-8881-1 freetype vulnerability

It was discovered that FreeType had a flaw in its CID font loader. An attacker could possibly use this issue to cause FreeType to consume excessive memory and CPU resources, leading to a denial of service...

USN-8875-1 linux, linux-aws, linux-aws-5.15, linux-aws-fips, linux-azure, linux-azure-5.15, linux-azure-fde-5.15, linux-azure-fips, linux-fips, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-intel-iot-realtime, linux-intel-iotg, linux-intel-iotg-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oracle, linux-realtime, linux-xilinx-zynqmp vulnerabilities

It was discovered that the i.MX clock driver in the Linux kernel did not properly handle certain memory allocation failure conditions, leading to a null pointer dereference vulnerability. A local attacker could possibly use this to cause a denial of service system crash. CVE-2022-3114 Several...

USN-8879-1 linux-oracle-5.15 vulnerabilities

It was discovered that the i.MX clock driver in the Linux kernel did not properly handle certain memory allocation failure conditions, leading to a null pointer dereference vulnerability. A local attacker could possibly use this to cause a denial of service system crash. CVE-2022-3114 It was...

USN-8877-1 linux-gcp, linux-gcp-fips vulnerabilities

It was discovered that the i.MX clock driver in the Linux kernel did not properly handle certain memory allocation failure conditions, leading to a null pointer dereference vulnerability. A local attacker could possibly use this to cause a denial of service system crash. CVE-2022-3114 Several...

USN-8873-1 unbound vulnerabilities

Yuqi Qiu and Xiang Li discovered that Unbound did not correctly handle certain memory operations. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. CVE-2026-81642 Ben Morris discovered that Unbound did not correctly handle certain memory operations...

USN-8872-1 libxmltok vulnerabilities

It was discovered that Expat, contained with the xmltok library did not correctly handle certain integer arithmetic. If a user or automated system were tricked into opening a specially crafted file, an attacker could possibly cause a denial of service. CVE-2026-56404, CVE-2026-56405...

USN-8871-1 linux-raspi vulnerabilities

It was discovered that some Arm processors could complete a broadcast translation lookaside buffer TLB invalidation before memory writes made through the invalidated translation were globally observed. A local attacker could possibly use this to write to memory after permission to do so had been...

USN-8864-1 linux, linux-aws, linux-fips, linux-kvm, linux-lts-xenial 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: - Network file system NFS server daemon; - IPv6 networking; - Netfilter; CVE-2025-38724, CVE-2026-53131, CVE-2026-532...

USN-8816-4 linux-gke 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; - S390 architecture; - x86 architecture; - DRBD Distributed Replicated Block Device drivers; -...

USN-8816-3 linux-oracle-7.0 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; - S390 architecture; - x86 architecture; - DRBD Distributed Replicated Block Device drivers; -...

USN-8853-1 opensbi vulnerability

It was discovered that OpenSBI did not properly validate the counter index mask in SBI PMU extension requests. An attacker could use this issue to cause a denial of service...

USN-8850-1 linux-bluefield 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: - Network file system NFS server daemon; - OCFS2 file system; - IPv6 networking; - Netfilter; - SCTP protocol;...

USN-8848-1 python-django vulnerabilities

Bence Nagy discovered that GeoDjango in Django incorrectly handled spatial lookups when processing untrusted input. A remote attacker could possibly use this issue to make outbound network requests, write arbitrary files, or execute arbitrary code. This issue was only addressed in Ubuntu 22.04 LT...

USN-8846-1 libheif vulnerabilities

Yuqi Qiu and Xiang Li discovered that libheif incorrectly handled certain compressed metadata. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. CVE-2026-84384 Yuqi Qiu and Xiang Li discovered that libheif...

USN-8843-1 freeipmi vulnerabilities

It was discovered that FreeIPMI incorrectly handled certain malformed Fujitsu SEL long-text responses, leading to a stack-based buffer overflow. An attacker in control of a malicious IPMI device could possibly use this issue to cause FreeIPMI to crash, resulting in a denial of service, or possibl...

USN-8818-3 linux-aws-5.15, linux-azure-5.15, linux-azure-fde-5.15, linux-intel-iotg-5.15 vulnerabilities

It was discovered that some Arm processors could complete a broadcast translation lookaside buffer TLB invalidation before memory writes made through the invalidated translation were globally observed. A local attacker could possibly use this to write to memory after permission to do so had been...

USN-8842-1 linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency 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: - InfiniBand drivers; - Network drivers; - TCM subsystem; - B.A.T.M.A.N. meshing protocol; - HSR network protocol; -...

USN-8816-2 linux-gcp, linux-gcp-7.0, linux-oem-7.0 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; - S390 architecture; - x86 architecture; - DRBD Distributed Replicated Block Device drivers; -...

USN-8841-1 libdbi-perl vulnerabilities

It was discovered that the Perl DBI module did not correctly handle certain integer arithmetic operations. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. CVE-2026-73193, CVE-2026-73194...

USN-8487-2 curl regression

USN-8487-1 fixed vulnerabilities in curl. Unfortunately that update contained an incomplete fix for CVE-2026-8927. This update fixes the problem. Original advisory details: Andrew Nesbitt discovered that curl could reuse an existing live connection during STARTTLS-based connection upgrades even...

USN-8837-1 pdfminer vulnerabilities

It was discovered that pdfminer did not safely parse specially crafted PDF files. An attacker could possibly use these issues to execute arbitrary code. CVE-2025-64512, CVE-2025-70559...

USN-8827-1 erlang vulnerabilities

It was discovered that the Erlang Port Mapper Daemon did not properly handle slow connections. A remote attacker could possibly use this issue to cause a denial of service. CVE-2026-42792 It was discovered that Erlang incorrectly handled certain external term format data, leading to heap...

USN-8836-1 freerdp3 vulnerabilities

It was discovered that FreeRDP contained multiple security issues. An attacker could possibly use these issues to obtain sensitive information, cause FreeRDP to crash, resulting in a denial of service, or execute arbitrary code...

USN-8834-1 exim4 vulnerabilities

It was discovered that Exim had an out-of-bounds write when Proxy-Protocol was used with an attacker-controlled proxy. A remote attacker could possibly use this issue to execute arbitrary code. CVE-2026-94054 It was discovered that Exim had a use-after-free when certain non-default TLS settings...

USN-8730-6 linux-intel-iotg-5.15 vulnerability

A security issue was discovered in the Linux kernel. An attacker could possibly use this to compromise the system. This update corrects flaws in the following subsystems: - IPv6 networking; - Netfilter;...

USN-8821-1 swift vulnerability

It was discovered that OpenStack Swift incorrectly handled truncated aws-chunked PUT request bodies in its s3api middleware. An authenticated attacker could possibly use this issue to cause OpenStack Swift to use excessive resources, leading to a denial of service...

USN-8818-1 linux-aws, linux-aws-fips, linux-azure, linux-azure-fde, linux-azure-fips, linux-gcp, linux-gcp-fips, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-intel-iot-realtime, linux-intel-iotg, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oracle, linux-realtime, linux-xilinx-zynqmp vulnerabilities

It was discovered that some Arm processors could complete a broadcast translation lookaside buffer TLB invalidation before memory writes made through the invalidated translation were globally observed. A local attacker could possibly use this to write to memory after permission to do so had been...

USN-8816-1 linux, linux-aws, linux-aws-7.0, linux-hwe-7.0, linux-ibm, linux-oracle, linux-raspi, linux-realtime 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; - S390 architecture; - x86 architecture; - DRBD Distributed Replicated Block Device drivers; -...

USN-8815-1 libass vulnerabilities

It was discovered that libass incorrectly handled parsing operations for specific nested character strings. An attacker could use this issue to cause libass to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS,...

USN-8813-1 expat vulnerabilities

It was discovered that Expat did not correctly handle certain integer arithmetic. An attacker could possibly use this issue to cause a denial of service. CVE-2026-56406, CVE-2026-56407, CVE-2026-56409, CVE-2026-56410, CVE-2026-56411 It was discovered that Expat did not correctly track handler cal...

USN-8814-1 octavia vulnerabilities

It was discovered that Octavia did not properly validate TLS cipher string fields in the Amphora provider driver. An authenticated attacker who owns a TLS-enabled load balancer could possibly use this issue to inject arbitrary HAProxy configuration directives. CVE-2026-94572 It was discovered tha...