Vulnerabilities (CVE)

Filtered by vendor Redhat Subscribe
Filtered by product Virtualization Host
Total 81 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2023-4911 5 Canonical, Debian, Fedoraproject and 2 more 17 Ubuntu Linux, Debian Linux, Fedora and 14 more 2024-09-17 N/A 7.8 HIGH
A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges.
CVE-2023-6536 3 Debian, Linux, Redhat 17 Debian Linux, Linux Kernel, Codeready Linux Builder Eus and 14 more 2024-09-14 N/A 7.5 HIGH
A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver, causing kernel panic and a denial of service.
CVE-2023-6535 2 Linux, Redhat 16 Linux Kernel, Codeready Linux Builder Eus, Codeready Linux Builder Eus For Power Little Endian Eus and 13 more 2024-09-14 N/A 7.5 HIGH
A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver, causing kernel panic and a denial of service.
CVE-2023-6356 3 Debian, Linux, Redhat 17 Debian Linux, Linux Kernel, Codeready Linux Builder Eus and 14 more 2024-09-14 N/A 7.5 HIGH
A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver and causing kernel panic and a denial of service.
CVE-2022-0847 4 Fedoraproject, Linux, Ovirt and 1 more 19 Fedora, Linux Kernel, Ovirt-engine and 16 more 2024-07-02 7.2 HIGH 7.8 HIGH
A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.
CVE-2021-3560 4 Canonical, Debian, Polkit Project and 1 more 7 Ubuntu Linux, Debian Linux, Polkit and 4 more 2024-06-27 7.2 HIGH 7.8 HIGH
It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, elevating the privileges of the requestor to the root user. This flaw could be used by an unprivileged local attacker to, for example, create a new local administrator. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVE-2019-1125 2 Microsoft, Redhat 15 Windows 10, Windows 7, Windows 8.1 and 12 more 2024-05-29 2.1 LOW 5.6 MEDIUM
An information disclosure vulnerability exists when certain central processing units (CPU) speculatively access memory. An attacker who successfully exploited the vulnerability could read privileged data across trust boundaries. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The vulnerability would not allow an attacker to elevate user rights directly, but it could be used to obtain information that could be used to try to compromise the affected system further. On January 3, 2018, Microsoft released an advisory and security updates related to a newly-discovered class of hardware vulnerabilities (known as Spectre) involving speculative execution side channels that affect AMD, ARM, and Intel CPUs to varying degrees. This vulnerability, released on August 6, 2019, is a variant of the Spectre Variant 1 speculative execution side channel vulnerability and has been assigned CVE-2019-1125. Microsoft released a security update on July 9, 2019 that addresses the vulnerability through a software change that mitigates how the CPU speculatively accesses memory. Note that this vulnerability does not require a microcode update from your device OEM.
CVE-2021-3621 2 Fedoraproject, Redhat 8 Fedora, Sssd, Enterprise Linux and 5 more 2024-03-04 9.3 HIGH 8.8 HIGH
A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands. This flaw allows an attacker to trick the root user into running a specially crafted sssctl command, such as via sudo, to gain root access. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
CVE-2019-14821 8 Canonical, Debian, Fedoraproject and 5 more 38 Ubuntu Linux, Debian Linux, Fedora and 35 more 2024-02-16 7.2 HIGH 8.8 HIGH
An out-of-bounds access issue was found in the Linux kernel, all versions through 5.3, in the way Linux kernel's KVM hypervisor implements the Coalesced MMIO write operation. It operates on an MMIO ring buffer 'struct kvm_coalesced_mmio' object, wherein write indices 'ring->first' and 'ring->last' value could be supplied by a host user-space process. An unprivileged host user or process with access to '/dev/kvm' device could use this flaw to crash the host kernel, resulting in a denial of service or potentially escalating privileges on the system.
CVE-2021-20316 3 Debian, Redhat, Samba 7 Debian Linux, Enterprise Linux, Enterprise Linux Aus and 4 more 2024-02-04 N/A 6.8 MEDIUM
A flaw was found in the way Samba handled file/directory metadata. This flaw allows an authenticated attacker with permissions to read or modify share metadata, to perform this operation outside of the share.
CVE-2021-3669 5 Debian, Fedoraproject, Ibm and 2 more 24 Debian Linux, Fedora, Spectrum Copy Data Management and 21 more 2024-02-04 N/A 5.5 MEDIUM
A flaw was found in the Linux kernel. Measuring usage of the shared memory does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS.
CVE-2022-0207 2 Ovirt, Redhat 5 Vdsm, Enterprise Linux, Virtualization and 2 more 2024-02-04 N/A 4.7 MEDIUM
A race condition was found in vdsm. Functionality to obfuscate sensitive values in log files that may lead to values being stored in clear text.
CVE-2021-3659 3 Fedoraproject, Linux, Redhat 17 Fedora, Linux Kernel, Codeready Linux Builder and 14 more 2024-02-04 N/A 5.5 MEDIUM
A NULL pointer dereference flaw was found in the Linux kernel’s IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability.
CVE-2022-0516 4 Debian, Fedoraproject, Linux and 1 more 15 Debian Linux, Fedora, Linux Kernel and 12 more 2024-02-04 4.6 MEDIUM 7.8 HIGH
A vulnerability was found in kvm_s390_guest_sida_op in the arch/s390/kvm/kvm-s390.c function in KVM for s390 in the Linux kernel. This flaw allows a local attacker with a normal user privilege to obtain unauthorized memory write access. This flaw affects Linux kernel versions prior to 5.17-rc4.
CVE-2021-44142 6 Canonical, Debian, Fedoraproject and 3 more 23 Ubuntu Linux, Debian Linux, Fedora and 20 more 2024-02-04 9.0 HIGH 8.8 HIGH
The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver." Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.
CVE-2016-2124 5 Canonical, Debian, Fedoraproject and 2 more 24 Ubuntu Linux, Debian Linux, Fedora and 21 more 2024-02-04 4.3 MEDIUM 5.9 MEDIUM
A flaw was found in the way samba implemented SMB1 authentication. An attacker could use this flaw to retrieve the plaintext password sent over the wire even if Kerberos authentication was required.
CVE-2021-3752 6 Debian, Fedoraproject, Linux and 3 more 27 Debian Linux, Fedora, Linux Kernel and 24 more 2024-02-04 7.9 HIGH 7.1 HIGH
A use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
CVE-2020-25717 5 Canonical, Debian, Fedoraproject and 2 more 25 Ubuntu Linux, Debian Linux, Fedora and 22 more 2024-02-04 8.5 HIGH 8.1 HIGH
A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to cause possible privilege escalation.
CVE-2022-1011 6 Debian, Fedoraproject, Linux and 3 more 38 Debian Linux, Fedora, Linux Kernel and 35 more 2024-02-04 4.6 MEDIUM 7.8 HIGH
A use-after-free flaw was found in the Linux kernel’s FUSE filesystem in the way a user triggers write(). This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation.
CVE-2021-3656 3 Fedoraproject, Linux, Redhat 26 Fedora, Linux Kernel, 3scale Api Management and 23 more 2024-02-04 7.2 HIGH 8.8 HIGH
A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "virt_ext" field, this issue could allow a malicious L1 to disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape.