Filtered by vendor Canonical
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Total
4265 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2021-4093 | 4 Canonical, Fedoraproject, Linux and 1 more | 4 Ubuntu Linux, Fedora, Linux Kernel and 1 more | 2024-11-21 | 7.2 HIGH | 8.8 HIGH |
| A flaw was found in the KVM's AMD code for supporting the Secure Encrypted Virtualization-Encrypted State (SEV-ES). A KVM guest using SEV-ES can trigger out-of-bounds reads and writes in the host kernel via a malicious VMGEXIT for a string I/O instruction (for example, outs or ins) using the exit reason SVM_EXIT_IOIO. This issue results in a crash of the entire system or a potential guest-to-host escape scenario. | |||||
| CVE-2021-45417 | 5 Advanced Intrusion Detection Environment Project, Canonical, Debian and 2 more | 7 Advanced Intrusion Detection Environment, Ubuntu Linux, Debian Linux and 4 more | 2024-11-21 | 7.2 HIGH | 7.8 HIGH |
| AIDE before 0.17.4 allows local users to obtain root privileges via crafted file metadata (such as XFS extended attributes or tmpfs ACLs), because of a heap-based buffer overflow. | |||||
| CVE-2021-45079 | 4 Canonical, Debian, Fedoraproject and 1 more | 5 Ubuntu Linux, Debian Linux, Extra Packages For Enterprise Linux and 2 more | 2024-11-21 | 5.8 MEDIUM | 9.1 CRITICAL |
| In strongSwan before 5.9.5, a malicious responder can send an EAP-Success message too early without actually authenticating the client and (in the case of EAP methods with mutual authentication and EAP-only authentication for IKEv2) even without server authentication. | |||||
| CVE-2021-44731 | 3 Canonical, Debian, Fedoraproject | 4 Snapd, Ubuntu Linux, Debian Linux and 1 more | 2024-11-21 | 6.9 MEDIUM | 7.8 HIGH |
| A race condition existed in the snapd 2.54.2 snap-confine binary when preparing a private mount namespace for a snap. This could allow a local attacker to gain root privileges by bind-mounting their own contents inside the snap's private mount namespace and causing snap-confine to execute arbitrary code and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1 | |||||
| CVE-2021-44730 | 3 Canonical, Debian, Fedoraproject | 4 Snapd, Ubuntu Linux, Debian Linux and 1 more | 2024-11-21 | 6.9 MEDIUM | 7.8 HIGH |
| snapd 2.54.2 did not properly validate the location of the snap-confine binary. A local attacker who can hardlink this binary to another location to cause snap-confine to execute other arbitrary binaries and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1 | |||||
| CVE-2021-44420 | 5 Canonical, Debian, Djangoproject and 2 more | 5 Ubuntu Linux, Debian Linux, Django and 2 more | 2024-11-21 | 7.5 HIGH | 7.3 HIGH |
| In Django 2.2 before 2.2.25, 3.1 before 3.1.14, and 3.2 before 3.2.10, HTTP requests for URLs with trailing newlines could bypass upstream access control based on URL paths. | |||||
| CVE-2021-3975 | 5 Canonical, Debian, Fedoraproject and 2 more | 14 Ubuntu Linux, Debian Linux, Fedora and 11 more | 2024-11-21 | N/A | 6.5 MEDIUM |
| A use-after-free flaw was found in libvirt. The qemuMonitorUnregister() function in qemuProcessHandleMonitorEOF is called using multiple threads without being adequately protected by a monitor lock. This flaw could be triggered by the virConnectGetAllDomainStats API when the guest is shutting down. An unprivileged client with a read-only connection could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash. | |||||
| CVE-2021-3939 | 1 Canonical | 2 Accountsservice, Ubuntu Linux | 2024-11-21 | 7.2 HIGH | 7.8 HIGH |
| Ubuntu-specific modifications to accountsservice (in patch file debian/patches/0010-set-language.patch) caused the fallback_locale variable, pointing to static storage, to be freed, in the user_change_language_authorized_cb function. This is reachable via the SetLanguage dbus function. This is fixed in versions 0.6.55-0ubuntu12~20.04.5, 0.6.55-0ubuntu13.3, 0.6.55-0ubuntu14.1. | |||||
| CVE-2021-3905 | 4 Canonical, Fedoraproject, Openvswitch and 1 more | 4 Ubuntu Linux, Fedora, Openvswitch and 1 more | 2024-11-21 | N/A | 7.5 HIGH |
| A memory leak was found in Open vSwitch (OVS) during userspace IP fragmentation processing. An attacker could use this flaw to potentially exhaust available memory by keeping sending packet fragments. | |||||
| CVE-2021-3748 | 5 Canonical, Debian, Fedoraproject and 2 more | 6 Ubuntu Linux, Debian Linux, Fedora and 3 more | 2024-11-21 | 6.9 MEDIUM | 7.5 HIGH |
| A use-after-free vulnerability was found in the virtio-net device of QEMU. It could occur when the descriptor's address belongs to the non direct access region, due to num_buffers being set after the virtqueue elem has been unmapped. A malicious guest could use this flaw to crash QEMU, resulting in a denial of service condition, or potentially execute code on the host with the privileges of the QEMU process. | |||||
| CVE-2021-3747 | 2 Apple, Canonical | 2 Macos, Multipass | 2024-11-21 | 4.6 MEDIUM | 8.8 HIGH |
| The MacOS version of Multipass, version 1.7.0, fixed in 1.7.2, accidentally installed the application directory with incorrect owner. | |||||
| CVE-2021-3710 | 1 Canonical | 2 Apport, Ubuntu Linux | 2024-11-21 | 4.7 MEDIUM | 6.5 MEDIUM |
| An information disclosure via path traversal was discovered in apport/hookutils.py function read_file(). This issue affects: apport 2.14.1 versions prior to 2.14.1-0ubuntu3.29+esm8; 2.20.1 versions prior to 2.20.1-0ubuntu2.30+esm2; 2.20.9 versions prior to 2.20.9-0ubuntu7.26; 2.20.11 versions prior to 2.20.11-0ubuntu27.20; 2.20.11 versions prior to 2.20.11-0ubuntu65.3; | |||||
| CVE-2021-3709 | 1 Canonical | 2 Apport, Ubuntu Linux | 2024-11-21 | 2.1 LOW | 6.5 MEDIUM |
| Function check_attachment_for_errors() in file data/general-hooks/ubuntu.py could be tricked into exposing private data via a constructed crash file. This issue affects: apport 2.14.1 versions prior to 2.14.1-0ubuntu3.29+esm8; 2.20.1 versions prior to 2.20.1-0ubuntu2.30+esm2; 2.20.9 versions prior to 2.20.9-0ubuntu7.26; 2.20.11 versions prior to 2.20.11-0ubuntu27.20; 2.20.11 versions prior to 2.20.11-0ubuntu65.3; | |||||
| CVE-2021-3640 | 5 Canonical, Debian, Fedoraproject and 2 more | 20 Ubuntu Linux, Debian Linux, Fedora and 17 more | 2024-11-21 | 6.9 MEDIUM | 7.0 HIGH |
| A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system. | |||||
| CVE-2021-3626 | 2 Canonical, Microsoft | 2 Multipass, Windows | 2024-11-21 | 4.6 MEDIUM | 8.8 HIGH |
| The Windows version of Multipass before 1.7.0 allowed any local process to connect to the localhost TCP control socket to perform mounts from the operating system to a guest, allowing for privilege escalation. | |||||
| CVE-2021-3600 | 4 Canonical, Fedoraproject, Linux and 1 more | 4 Ubuntu Linux, Fedora, Linux Kernel and 1 more | 2024-11-21 | N/A | 7.8 HIGH |
| It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code. | |||||
| CVE-2021-3492 | 1 Canonical | 1 Ubuntu Linux | 2024-11-21 | 7.2 HIGH | 8.8 HIGH |
| Shiftfs, an out-of-tree stacking file system included in Ubuntu Linux kernels, did not properly handle faults occurring during copy_from_user() correctly. These could lead to either a double-free situation or memory not being freed at all. An attacker could use this to cause a denial of service (kernel memory exhaustion) or gain privileges via executing arbitrary code. AKA ZDI-CAN-13562. | |||||
| CVE-2021-3491 | 2 Canonical, Linux | 2 Ubuntu Linux, Linux Kernel | 2024-11-21 | 7.2 HIGH | 7.8 HIGH |
| The io_uring subsystem in the Linux kernel allowed the MAX_RW_COUNT limit to be bypassed in the PROVIDE_BUFFERS operation, which led to negative values being usedin mem_rw when reading /proc/<PID>/mem. This could be used to create a heap overflow leading to arbitrary code execution in the kernel. It was addressed via commit d1f82808877b ("io_uring: truncate lengths larger than MAX_RW_COUNT on provide buffers") (v5.13-rc1) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. It was introduced in ddf0322db79c ("io_uring: add IORING_OP_PROVIDE_BUFFERS") (v5.7-rc1). | |||||
| CVE-2021-3490 | 2 Canonical, Linux | 2 Ubuntu Linux, Linux Kernel | 2024-11-21 | 7.2 HIGH | 7.8 HIGH |
| The eBPF ALU32 bounds tracking for bitwise ops (AND, OR and XOR) in the Linux kernel did not properly update 32-bit bounds, which could be turned into out of bounds reads and writes in the Linux kernel and therefore, arbitrary code execution. This issue was fixed via commit 049c4e13714e ("bpf: Fix alu32 const subreg bound tracking on bitwise operations") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. The AND/OR issues were introduced by commit 3f50f132d840 ("bpf: Verifier, do explicit ALU32 bounds tracking") (5.7-rc1) and the XOR variant was introduced by 2921c90d4718 ("bpf:Fix a verifier failure with xor") ( 5.10-rc1). | |||||
| CVE-2021-3489 | 2 Canonical, Linux | 2 Ubuntu Linux, Linux Kernel | 2024-11-21 | 7.2 HIGH | 7.8 HIGH |
| The eBPF RINGBUF bpf_ringbuf_reserve() function in the Linux kernel did not check that the allocated size was smaller than the ringbuf size, allowing an attacker to perform out-of-bounds writes within the kernel and therefore, arbitrary code execution. This issue was fixed via commit 4b81ccebaeee ("bpf, ringbuf: Deny reserve of buffers larger than ringbuf") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. It was introduced via 457f44363a88 ("bpf: Implement BPF ring buffer and verifier support for it") (v5.8-rc1). | |||||