Search vulnerabilities

Use the Query Builder to create your own search query, or check out the documentation to learn the search syntax.

Results 105

Export CSV
CVE-2021-27363

kernel: iscsi: unrestricted access to sessions and handles

An issue was discovered in the Linux kernel through 5.11.3. A kernel pointer leak can be used to determine the address of the iscsi_transport structure. When an iSCSI transport is registered with the iSCSI subsystem, the transport's handle is available to unprivileged users via the sysfs file system, at /sys/class/iscsi_transport/$TRANSPORT_NAME/handle. When read, the show_transport_handle function (in drivers/scsi/scsi_transport_iscsi.c) is called, which leaks the handle. This handle is actually the pointer to an iscsi_transport struct in the kernel module's global variables.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Linux Netapp and 1 more
Products
Debian Linux Linux Kernel Cloud Backup and 7 more
CVE-2021-26708

kernel: race conditions caused by wrong locking in net/vmw_vsock/af_vsock.c

A local privilege escalation was discovered in the Linux kernel before 5.10.13. Multiple race conditions in the AF_VSOCK implementation are caused by wrong locking in net/vmw_vsock/af_vsock.c. The race conditions were implicitly introduced in the commits that added VSOCK multi-transport support.

CVSS 3.1 · 7.0 High EPSS 1.6% KEV · Not listed
Vendors
Linux Netapp Redhat
Products
Linux Kernel 500f A250 and 10 more
CVE-2021-23134

Linux kernel llcp_sock_bind/connect use-after-free

Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Debian Fedoraproject Linux and 1 more
Products
Debian Linux Fedora Linux Kernel and 13 more
CVE-2021-23133

Linux Kernel sctp_destroy_sock race condition

A race condition in Linux kernel SCTP sockets (net/sctp/socket.c) before 5.12-rc8 can lead to kernel privilege escalation from the context of a network service or an unprivileged process. If sctp_destroy_sock is called without sock_net(sk)->sctp.addr_wq_lock then an element is removed from the auto_asconf_splist list without any proper locking. This can be exploited by an attacker with network service privileges to escalate to root or from the context of an unprivileged user directly if a BPF_CGROUP_INET_SOCK_CREATE is attached which denies creation of some SCTP socket.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Vendors
Broadcom Debian Fedoraproject and 3 more
Products
Brocade Fabric Operating System Debian Linux Fedora and 22 more
CVE-2021-22543

Improper memory handling in Linux KVM

An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Debian Fedoraproject Linux and 2 more
Products
Debian Linux Fedora Linux Kernel and 26 more
CVE-2020-9383

kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c

An issue was discovered in the Linux kernel 3.16 through 5.5.6. set_fdc in drivers/block/floppy.c leads to a wait_til_ready out-of-bounds read because the FDC index is not checked for errors before assigning it, aka CID-2e90ca68b0d2.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 3 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 13 more
CVE-2020-8832

Ubuntu 18.04 Linux kernel i915 incomplete fix for CVE-2019-14615

The fix for the Linux kernel in Ubuntu 18.04 LTS for CVE-2019-14615 ("The Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors.") was discovered to be incomplete, meaning that in versions of the kernel before 4.15.0-91.92, an attacker could use this vulnerability to expose sensitive information.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Netapp
Products
Ubuntu Linux Aff 8300 Aff 8300 Firmware and 57 more
CVE-2020-36158

kernel: buffer overflow in mwifiex_cmd_802_11_ad_hoc_start function in drivers/net/wireless/marvell/mwifiex/join.c via a long SSID value

mwifiex_cmd_802_11_ad_hoc_start in drivers/net/wireless/marvell/mwifiex/join.c in the Linux kernel through 5.10.4 might allow remote attackers to execute arbitrary code via a long SSID value, aka CID-5c455c5ab332.

CVSS 3.1 · 8.8 High EPSS 2.3% KEV · Not listed
Vendors
Debian Fedoraproject Linux and 2 more
Products
Debian Linux Fedora Linux Kernel and 4 more
CVE-2020-35519

kernel: x25_bind out-of-bounds read

An out-of-bounds (OOB) memory access flaw was found in x25_bind in net/x25/af_x25.c in the Linux kernel version v5.12-rc5. A bounds check failure allows a local attacker with a user account on the system to gain access to out-of-bounds memory, leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Linux Netapp
Products
Linux Kernel Cloud Backup H300e and 17 more
CVE-2020-29661

kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free

A locking issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_jobctrl.c allows a use-after-free attack against TIOCSPGRP, aka CID-54ffccbf053b.

CVSS 3.1 · 7.8 High EPSS 1.1% KEV · Not listed
Vendors
Broadcom Debian Fedoraproject and 4 more
Products
Fabric Operating System Debian Linux Fedora and 22 more
CVE-2020-29660

kernel: locking inconsistency in drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c can lead to a read-after-free

A locking inconsistency issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c may allow a read-after-free attack against TIOCGSID, aka CID-c8bcd9c5be24.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
Vendors
Broadcom Debian Fedoraproject and 3 more
Products
Fabric Operating System Debian Linux Fedora and 15 more
CVE-2020-29370

kernel: Race condition in SLUB bulk alloc slowpath

An issue was discovered in kmem_cache_alloc_bulk in mm/slub.c in the Linux kernel before 5.5.11. The slowpath lacks the required TID increment, aka CID-fd4d9c7d0c71.

CVSS 3.1 · 7.0 High EPSS < 1% KEV · Not listed
Vendors
Linux Netapp
Products
Linux Kernel Cloud Backup H410c and 7 more
CVE-2020-27825

kernel: use-after-free in the ftrace ring buffer resizing logic due to a race condition

A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat.

CVSS 3.1 · 5.7 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Linux Netapp and 1 more
Products
Debian Linux Linux Kernel Cloud Backup and 6 more
CVE-2020-27786

kernel: use-after-free in kernel midi subsystem

A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of execution to change and possibly allow for memory corruption or privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVSS 3.1 · 7.8 High EPSS 1.7% KEV · Not listed
Vendors
Linux Netapp Redhat
Products
Linux Kernel Cloud Backup Solidfire Baseboard Management Controller and 3 more
CVE-2020-27350

apt integer wraparound

APT had several integer overflows and underflows while parsing .deb packages, aka GHSL-2020-168 GHSL-2020-169, in files apt-pkg/contrib/extracttar.cc, apt-pkg/deb/debfile.cc, and apt-pkg/contrib/arfile.cc. This issue affects: apt 1.2.32ubuntu0 versions prior to 1.2.32ubuntu0.2; 1.6.12ubuntu0 versions prior to 1.6.12ubuntu0.2; 2.0.2ubuntu0 versions prior to 2.0.2ubuntu0.2; 2.1.10ubuntu0 versions prior to 2.1.10ubuntu0.1;

CVSS 3.1 · 5.7 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Netapp
Products
Ubuntu Linux Advanced Package Tool Debian Linux and 2 more
CVE-2020-25671

kernel: refcount leak in llcp_sock_connect()

A vulnerability was found in Linux Kernel, where a refcount leak in llcp_sock_connect() causing use-after-free which might lead to privilege escalations.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Debian Fedoraproject Linux and 1 more
Products
Debian Linux Fedora Linux Kernel and 20 more