Search vulnerabilities

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

Results 1,902

Export CSV
CVE-2021-2007

mysql: C API unspecified vulnerability (CPU Jan 2021)

Vulnerability in the MySQL Client product of Oracle MySQL (component: C API). Supported versions that are affected are 5.6.47 and prior, 5.7.29 and prior and 8.0.19 and prior. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Client. Successful attacks of this vulnerability can result in unauthorized read access to a subset of MySQL Client accessible data. CVSS 3.1 Base Score 3.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).

CVSS 3.1 · 3.7 Low EPSS 2.3% KEV · Not listed
Vendors
Fedoraproject Mariadb Netapp and 2 more
Products
Fedora Mariadb Active Iq Unified Manager and 7 more
CVE-2021-2006

mysql: C API unspecified vulnerability (CPU Jan 2021)

Vulnerability in the MySQL Client product of Oracle MySQL (component: C API). Supported versions that are affected are 8.0.19 and prior. Difficult to exploit vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Client. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Client. CVSS 3.1 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H).

CVSS 3.1 · 5.3 Medium EPSS 1.8% KEV · Not listed
Vendors
Fedoraproject Netapp Oracle and 1 more
Products
Fedora Active Iq Unified Manager Oncommand Insight and 6 more
CVE-2021-28965

ruby: XML round-trip vulnerability in REXML

The REXML gem before 3.2.5 in Ruby before 2.6.7, 2.7.x before 2.7.3, and 3.x before 3.0.1 does not properly address XML round-trip issues. An incorrect document can be produced after parsing and serializing.

CVSS 3.1 · 7.5 High EPSS 5.1% KEV · Not listed
Vendors
Fedoraproject Redhat Ruby-lang
Products
Fedora Enterprise Linux Rhel E4s and 4 more
CVE-2021-27365

kernel: heap buffer overflow in the iSCSI subsystem

An issue was discovered in the Linux kernel through 5.11.3. Certain iSCSI data structures do not have appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a Netlink message.

CVSS 3.1 · 7.8 High EPSS 2.1% KEV · Not listed
Vendors
Debian Linux Netapp and 2 more
Products
Debian Linux Linux Kernel Cloud Backup and 10 more
CVE-2021-27364

kernel: out-of-bounds read in libiscsi module

An issue was discovered in the Linux kernel through 5.11.3. drivers/scsi/scsi_transport_iscsi.c is adversely affected by the ability of an unprivileged user to craft Netlink messages.

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 11 more
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-2021-25217

A buffer overrun in lease file parsing code can be used to exploit a common vulnerability shared by dhcpd and dhclient

In ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16, ISC DHCP 4.4.0 -> 4.4.2 (Other branches of ISC DHCP (i.e., releases in the 4.0.x series or lower and releases in the 4.3.x series) are beyond their End-of-Life (EOL) and no longer supported by ISC. From inspection it is clear that the defect is also present in releases from those series, but they have not been officially tested for the vulnerability), The outcome of encountering the defect while reading a lease that will trigger it varies, according to: the component being affected (i.e., dhclient or dhcpd) whether the package was built as a 32-bit or 64-bit binary whether the compiler flag -fstack-protection-strong was used when compiling In dhclient, ISC has not successfully reproduced the error on a 64-bit system. However, on a 32-bit system it is possible to cause dhclient to crash when reading an improper lease, which could cause network connectivity problems for an affected system due to the absence of a running DHCP client process. In dhcpd, when run in DHCPv4 or DHCPv6 mode: if the dhcpd server binary was built for a 32-bit architecture AND the -fstack-protection-strong flag was specified to the compiler, dhcpd may exit while parsing a lease file containing an objectionable lease, resulting in lack of service to clients. Additionally, the offending lease and the lease immediately following it in the lease database may be improperly deleted. if the dhcpd server binary was built for a 64-bit architecture OR if the -fstack-protection-strong compiler flag was NOT specified, the crash will not occur, but it is possible for the offending lease and the lease which immediately followed it to be improperly deleted.

CVSS 3.1 · 7.4 High EPSS 6.1% KEV · Not listed
Vendors
Debian Fedoraproject Isc and 3 more
Products
Debian Linux Fedora Dhcp and 30 more
CVE-2021-25215

An assertion check can fail while answering queries for DNAME records that require the DNAME to be processed to resolve itself

In BIND 9.0.0 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a query for a record triggering the flaw described above, the named process will terminate due to a failed assertion check. The vulnerability affects all currently maintained BIND 9 branches (9.11, 9.11-S, 9.16, 9.16-S, 9.17) as well as all other versions of BIND 9.

CVSS 3.1 · 7.5 High EPSS 11.7% KEV · Not listed
Vendors
Debian Fedoraproject Isc and 4 more
Products
Debian Linux Fedora Bind and 28 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-2021-21708

UAF due to php_filter_float() failing

In PHP versions 7.4.x below 7.4.28, 8.0.x below 8.0.16, and 8.1.x below 8.1.3, when using filter functions with FILTER_VALIDATE_FLOAT filter and min/max limits, if the filter fails, there is a possibility to trigger use of allocated memory after free, which can result it crashes, and potentially in overwrite of other memory chunks and RCE. This issue affects: code that uses FILTER_VALIDATE_FLOAT with min/max limits.

CVSS 3.1 · 8.2 High EPSS 3.0% KEV · Not listed
Vendors
Php Redhat
Products
Php Enterprise Linux Rhel Aus and 2 more
CVE-2021-20277

samba: Out of bounds read in AD DC LDAP server

A flaw was found in Samba's libldb. Multiple, consecutive leading spaces in an LDAP attribute can lead to an out-of-bounds memory write, leading to a crash of the LDAP server process handling the request. The highest threat from this vulnerability is to system availability.

CVSS 3.1 · 7.5 High EPSS 4.4% KEV · Not listed
Vendors
Debian Fedoraproject Redhat and 1 more
Products
Debian Linux Fedora Enterprise Linux and 5 more
CVE-2021-20271

rpm: Signature checks bypass via corrupted rpm package

A flaw was found in RPM's signature check functionality when reading a package file. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package, whose signature header was modified, to cause RPM database corruption and execute code. The highest threat from this vulnerability is to data integrity, confidentiality, and system availability.

CVSS 3.1 · 7.0 High EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Redhat Rpm and 1 more
Products
Fedora Enterprise Linux Rhel Aus and 6 more
CVE-2021-20254

samba: Negative idmap cache entries can cause incorrect group entries in the Samba file server process token

A flaw was found in samba. The Samba smbd file server must map Windows group identities (SIDs) into unix group ids (gids). The code that performs this had a flaw that could allow it to read data beyond the end of the array in the case where a negative cache entry had been added to the mapping cache. This could cause the calling code to return those values into the process token that stores the group membership for a user. The highest threat from this vulnerability is to data confidentiality and integrity.

CVSS 3.1 · 6.8 Medium EPSS 1.6% KEV · Not listed
Vendors
Debian Fedoraproject Redhat and 1 more
Products
Debian Linux Fedora Enterprise Linux and 6 more
CVE-2021-20233

grub2: Heap out-of-bounds write due to miscalculation of space required for quoting

A flaw was found in grub2 in versions prior to 2.06. Setparam_prefix() in the menu rendering code performs a length calculation on the assumption that expressing a quoted single quote will require 3 characters, while it actually requires 4 characters which allows an attacker to corrupt memory by one byte for each quote in the input. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Gnu Netapp and 1 more
Products
Fedora Grub2 Ontap Select Deploy Administration Utility and 9 more
CVE-2021-20225

grub2: Heap out-of-bounds write in short form option parser

A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 6.7 Medium EPSS 1.0% KEV · Not listed
Vendors
Fedoraproject Gnu Netapp and 1 more
Products
Fedora Grub2 Ontap Select Deploy Administration Utility and 9 more
CVE-2021-1998

mysql: Server: Optimizer unspecified vulnerability (CPU Jan 2021)

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.20 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of MySQL Server accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Server. CVSS 3.1 Base Score 3.8 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L).

CVSS 3.1 · 3.8 Low EPSS 1.6% KEV · Not listed
Vendors
Fedoraproject Netapp Oracle and 1 more
Products
Fedora Active Iq Unified Manager Oncommand Insight and 7 more
CVE-2020-9490

httpd: Push diary crash on specifically crafted HTTP/2 header

Apache HTTP Server versions 2.4.20 to 2.4.43. A specially crafted value for the 'Cache-Digest' header in a HTTP/2 request would result in a crash when the server actually tries to HTTP/2 PUSH a resource afterwards. Configuring the HTTP/2 feature via "H2Push off" will mitigate this vulnerability for unpatched servers.

CVSS 3.1 · 7.5 High EPSS 88.8% KEV · Not listed
Vendors
Apache Canonical Debian and 4 more
Products
Http Server Ubuntu Linux Debian Linux and 25 more
CVE-2020-8696

hw: Vector Register Leakage-Active

Improper removal of sensitive information before storage or transfer in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Fedoraproject Intel and 2 more
Products
Debian Linux Fedora Celeron 3855u and 504 more
CVE-2020-8695

hw: Information disclosure issue in Intel SGX via RAPL interface

Observable discrepancy in the RAPL interface for some Intel(R) Processors may allow a privileged user to potentially enable information disclosure via local access.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Fedoraproject Intel and 1 more
Products
Debian Linux Fedora Celeron 3855u and 602 more