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CVE-2020-25696

postgresql: psql's \gset allows overwriting specially treated variables

A flaw was found in the psql interactive terminal of PostgreSQL in versions before 13.1, before 12.5, before 11.10, before 10.15, before 9.6.20 and before 9.5.24. If an interactive psql session uses \gset when querying a compromised server, the attacker can execute arbitrary code as the operating system account running psql. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 7.5 High EPSS 2.7% KEV · Not listed
Vendors
Debian Postgresql Redhat
Products
Debian Linux Postgresql Enterprise Linux and 3 more
CVE-2020-25695

postgresql: Multiple features escape "security restricted operation" sandbox

A flaw was found in PostgreSQL versions before 13.1, before 12.5, before 11.10, before 10.15, before 9.6.20 and before 9.5.24. An attacker having permission to create non-temporary objects in at least one schema can execute arbitrary SQL functions under the identity of a superuser. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 8.8 High EPSS 46.4% KEV · Not listed
Vendors
Debian Postgresql Redhat
Products
Debian Linux Postgresql Enterprise Linux and 3 more
CVE-2020-25694

postgresql: Reconnection can downgrade connection security settings

A flaw was found in PostgreSQL versions before 13.1, before 12.5, before 11.10, before 10.15, before 9.6.20 and before 9.5.24. If a client application that creates additional database connections only reuses the basic connection parameters while dropping security-relevant parameters, an opportunity for a man-in-the-middle attack, or the ability to observe clear-text transmissions, could exist. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 8.1 High EPSS 1.6% KEV · Not listed
Vendors
Debian Postgresql Redhat
Products
Debian Linux Postgresql Enterprise Linux and 3 more
CVE-2020-25647

grub2: Out-of-bounds write in grub_usb_device_initialize()

A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution allowing a bypass of the Secure Boot mechanism. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 7.6 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-2020-25632

grub2: Use-after-free in rmmod command

A flaw was found in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading of a module used as a dependency without checking if any other dependent module is still loaded leading to a use-after-free scenario. This could allow arbitrary code to be executed or a bypass of Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 8.2 High EPSS 1.2% KEV · Not listed
Vendors
Fedoraproject Gnu Netapp and 1 more
Products
Fedora Grub2 Ontap Select Deploy Administration Utility and 9 more
CVE-2020-25613

ruby: Potential HTTP request smuggling in WEBrick

An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An attacker may potentially exploit this issue to bypass a reverse proxy (which also has a poor header check), which may lead to an HTTP Request Smuggling attack.

CVSS 3.1 · 7.5 High EPSS 3.8% KEV · Not listed
Vendors
Fedoraproject Redhat Ruby-lang
Products
Fedora Enterprise Linux Rhel E4s and 4 more
CVE-2020-25212

kernel: TOCTOU mismatch in the NFS client code

A TOCTOU mismatch in the NFS client code in the Linux kernel before 5.8.3 could be used by local attackers to corrupt memory or possibly have unspecified other impact because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c, aka CID-b4487b935452.

CVSS 3.1 · 7.0 High EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 2 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 7 more
CVE-2020-25211

kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c

In the Linux kernel through 5.8.7, local attackers able to inject conntrack netlink configuration could overflow a local buffer, causing crashes or triggering use of incorrect protocol numbers in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c, aka CID-1cc5ef91d2ff.

CVSS 3.1 · 6.0 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Fedoraproject Linux and 1 more
Products
Debian Linux Fedora Linux Kernel and 6 more
CVE-2020-24394

kernel: umask not applied on filesystem without ACL support

In the Linux kernel before 5.7.8, fs/nfsd/vfs.c (in the NFS server) can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support, aka CID-22cf8419f131. This occurs because the current umask is not considered.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Canonical Linux Opensuse and 3 more
Products
Ubuntu Linux Linux Kernel Leap and 8 more
CVE-2020-22219

flac: Remote Code Execution (RCE) via the bitwriter_grow_ function, by supplying crafted input to the encoder

Buffer Overflow vulnerability in function bitwriter_grow_ in flac before 1.4.0 allows remote attackers to run arbitrary code via crafted input to the encoder.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Flac Project Redhat
Products
Flac Enterprise Linux Rhel Aus and 3 more
CVE-2020-1763

libreswan: DoS attack via malicious IKEv1 informational exchange message

An out-of-bounds buffer read flaw was found in the pluto daemon of libreswan from versions 3.27 till 3.31 where, an unauthenticated attacker could use this flaw to crash libreswan by sending specially-crafted IKEv1 Informational Exchange packets. The daemon respawns after the crash.

CVSS 3.1 · 7.5 High EPSS 3.3% KEV · Not listed
Vendors
Libreswan Redhat
Products
Libreswan Enterprise Linux Rhel E4s and 1 more
CVE-2020-1720

postgresql: ALTER ... DEPENDS ON EXTENSION is missing authorization checks

A flaw was found in PostgreSQL's "ALTER ... DEPENDS ON EXTENSION", where sub-commands did not perform authorization checks. An authenticated attacker could use this flaw in certain configurations to perform drop objects such as function, triggers, et al., leading to database corruption. This issue affects PostgreSQL versions before 12.2, before 11.7, before 10.12 and before 9.6.17.

CVSS 3.1 · 3.1 Low EPSS 1.2% KEV · Not listed
Vendors
Postgresql Redhat
Products
Postgresql Decision Manager Enterprise Linux and 5 more
CVE-2020-1711

QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server

An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block driver in QEMU versions 2.12.0 before 4.2.1 handled a response coming from an iSCSI server while checking the status of a Logical Address Block (LBA) in an iscsi_co_block_status() routine. A remote user could use this flaw to crash the QEMU process, resulting in a denial of service or potential execution of arbitrary code with privileges of the QEMU process on the host.

CVSS 3.1 · 7.7 High EPSS 4.0% KEV · Not listed
Vendors
Debian Opensuse Qemu and 1 more
Products
Debian Linux Leap Qemu and 6 more
CVE-2020-16042

chromium-browser: Uninitialized Use in V8

Uninitialized Use in V8 in Google Chrome prior to 87.0.4280.88 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page.

CVSS 3.1 · 6.5 Medium EPSS 1.1% KEV · Not listed
Vendors
Google Redhat
Products
Chrome Enterprise Linux Rhel E4s and 1 more
CVE-2020-16012

Mozilla: Variable time processing of cross-origin images during drawImage calls

Side-channel information leakage in graphics in Google Chrome prior to 87.0.4280.66 allowed a remote attacker to leak cross-origin data via a crafted HTML page.

CVSS 3.1 · 4.3 Medium EPSS 2.6% KEV · Not listed
Vendors
Google Mozilla Redhat
Products
Chrome Firefox Enterprise Linux and 2 more
CVE-2020-15969

chromium-browser: Use after free in WebRTC

Use after free in WebRTC in Google Chrome prior to 86.0.4240.75 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

CVSS 3.1 · 8.8 High EPSS 1.7% KEV · Not listed
Vendors
Apple Debian Fedoraproject and 3 more
Products
Ipados Iphone Os Macos and 11 more
CVE-2020-15862

net-snmp: Improper Privilege Management in EXTEND MIB may lead to privileged commands execution

Net-SNMP through 5.8 has Improper Privilege Management because SNMP WRITE access to the EXTEND MIB provides the ability to run arbitrary commands as root.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Net-snmp Netapp and 1 more
Products
Ubuntu Linux Net-snmp Cloud Backup and 8 more
CVE-2020-15811

squid: HTTP Request Splitting could result in cache poisoning

An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Splitting attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the browser cache and any downstream caches with content from an arbitrary source. Squid uses a string search instead of parsing the Transfer-Encoding header to find chunked encoding. This allows an attacker to hide a second request inside Transfer-Encoding: it is interpreted by Squid as chunked and split out into a second request delivered upstream. Squid will then deliver two distinct responses to the client, corrupting any downstream caches.

CVSS 3.1 · 6.5 Medium EPSS 3.8% KEV · Not listed
Vendors
Canonical Debian Fedoraproject and 3 more
Products
Ubuntu Linux Debian Linux Fedora and 5 more
CVE-2020-15810

squid: HTTP Request Smuggling could result in cache poisoning

An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Smuggling attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the proxy cache and any downstream caches with content from an arbitrary source. When configured for relaxed header parsing (the default), Squid relays headers containing whitespace characters to upstream servers. When this occurs as a prefix to a Content-Length header, the frame length specified will be ignored by Squid (allowing for a conflicting length to be used from another Content-Length header) but relayed upstream.

CVSS 3.1 · 6.5 Medium EPSS 2.3% KEV · Not listed
Vendors
Canonical Debian Fedoraproject and 3 more
Products
Ubuntu Linux Debian Linux Fedora and 5 more
CVE-2020-15780

kernel: lockdown: bypass through ACPI write via acpi_configfs

An issue was discovered in drivers/acpi/acpi_configfs.c in the Linux kernel before 5.7.7. Injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30.

CVSS 3.1 · 6.7 Medium EPSS 1.4% KEV · Not listed
Vendors
Canonical Linux Opensuse and 1 more
Products
Ubuntu Linux Linux Kernel Leap and 3 more