QEMU: net: Infinite loop in loopback mode may lead to stack overflow

A potential stack overflow via infinite loop issue was found in various NIC emulators of QEMU. The issue occurs in loopback mode of a NIC wherein reentrant DMA checks get bypassed. A guest user/process may use this flaw to consume CPU cycles or crash the QEMU process on the host resulting in DoS...

CVE-2021-21382

Restund is an open source NAT traversal server. The restund TURN server can be instructed to open a relay to the loopback address range. This allows you to reach any other service running on localhost which you might consider private. In the configuration that we ship...

CVE-2021-21382

Restund is an open source NAT traversal server. The restund TURN server can be instructed to open a relay to the loopback address range. This allows you to reach any other service running on localhost which you might consider private. In the configuration that we ship...

Design/Logic Flaw

Restund is an open source NAT traversal server. The restund TURN server can be instructed to open a relay to the loopback address range. This allows you to reach any other service running on localhost which you might consider private. In the configuration that we ship...

CVE-2021-21382 Unsafe loopback forwarding interface in Restund

Restund is an open source NAT traversal server. The restund TURN server can be instructed to open a relay to the loopback address range. This allows you to reach any other service running on localhost which you might consider private. In the configuration that we ship...

CVE-2021-21382

Technical details for CVE-2021-21382 are not provided in the supplied documents. No affected version, exploit, or remediation is stated here. Monitor for updates from official advisories and connected sources.

PT-2021-4479 · Restund · Restund

Name of the Vulnerable Software and Affected Versions: Restund affected versions not specified Description: The issue is related to the Restund TURN server, which can be instructed to open a relay to the loopback address range, potentially exposing private services running on localhost. An attack...

Restund 安全漏洞

Restund is an open source network traversal server. A security vulnerability exists in Restund that stems from Restund is an open source NAT traversal server that can be instructed to return a TURN server to open a relay to a range of loopback addresses, which allows you to access any other servi...

CVE-2021-21382: Exposure of Resource to Wrong Sphere

Restund is an open source NAT traversal server. The restund TURN server can be instructed to open a relay to the loopback address range. This allows you to reach any other service running on localhost which you might consider private. In the configuration that we ship...

UVI-2021-1000027 ixgbe: Fix NULL pointer dereference in ethtool loopback test

ixgbe: Fix NULL pointer dereference in ethtool loopback test This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.11.16 by commit...

GSD-2021-1000027 ixgbe: Fix NULL pointer dereference in ethtool loopback test

ixgbe: Fix NULL pointer dereference in ethtool loopback test This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.11.16 by commit...

OAuth2 Redirect URL validity does not respect query parameters and character casing for loopback addresses

Impact fosite400 released as v0.30.2 introduced a new feature for handling redirect URLs pointing to loopback interfaces rfc8252section-7.3. As part of that change new behavior was introduced which failed to respect the redirect URL's only for loopback interfaces! query parameters 1. Registering ...

GHSA-RFQ3-W54C-F9Q5 OAuth2 Redirect URL validity does not respect query parameters and character casing for loopback addresses

Impact fosite400 released as v0.30.2 introduced a new feature for handling redirect URLs pointing to loopback interfaces rfc8252section-7.3. As part of that change new behavior was introduced which failed to respect the redirect URL's only for loopback interfaces! query parameters 1. Registering ...

Unbreakable Enterprise kernel-container security update

4.14.35-2047.503.1.el7 - bpf, x86: Validate computation of branch displacements for x86-64 Piotr Krysiuk Orabug: 32759961 CVE-2021-29154 - uek-rpm: Add Amazon Elastic Network Adapter module to nano rpm. Somasundaram Krishnasamy Orabug: 32781585 - ext4: handle error of ext4setupsystemzone on remou...

What is an IP address? Do I need one?

An IP address tells computers how to find a certain device within a computer network. An IP address is like an address label for information packets. For each network your computer is connected to, it has a unique IP address on that network. So, one device can have several IP addresses at the sam...

CVE-2020-22001

HomeAutomation 3.3.2 suffers from an authentication bypass vulnerability when spoofing client IP address using the X-Forwarded-For header with the local loopback IP address value allowing remote control of the smart home solution...

CVE-2020-22001: Authentication Bypass by Spoofing

HomeAutomation 3.3.2 suffers from an authentication bypass vulnerability when spoofing client IP address using the X-Forwarded-For header with the local loopback IP address value allowing remote control of the smart home solution...

CVE-2021-0247

A Race Condition Concurrent Execution using Shared Resource with Improper Synchronization vulnerability in the firewall process dfwd of Juniper Networks Junos OS allows an attacker to bypass the firewall rule sets applied to the input loopback filter on any interfaces of a device. This issue is...

CVE-2021-0247 Junos OS: PTX Series, QFX Series: Due to a race condition input loopback firewall filters applied to interfaces may not operate even when listed in the running configuration.

A Race Condition Concurrent Execution using Shared Resource with Improper Synchronization vulnerability in the firewall process dfwd of Juniper Networks Junos OS allows an attacker to bypass the firewall rule sets applied to the input loopback filter on any interfaces of a device. This issue is...

CVE-2021-0247

A Race Condition Concurrent Execution using Shared Resource with Improper Synchronization vulnerability in the firewall process dfwd of Juniper Networks Junos OS allows an attacker to bypass the firewall rule sets applied to the input loopback filter on any interfaces of a device. This issue is...