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CVE-2021-3716

Status Candidate

Overview

A flaw was found in nbdkit due to to improperly caching plaintext state across the STARTTLS encryption boundary. A MitM attacker could use this flaw to inject a plaintext NBD_OPT_STRUCTURED_REPLY before proxying everything else a client sends to the server, potentially leading the client to terminate the NBD session. The highest threat from this vulnerability is to system availability.

Related Files

Red Hat Security Advisory 2022-1759-01
Posted May 11, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1759-01 - Kernel-based Virtual Machine offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems. Issues addressed include buffer overflow, integer overflow, null pointer, out of bounds access, out of bounds read, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-20196, CVE-2021-33285, CVE-2021-33286, CVE-2021-33287, CVE-2021-33289, CVE-2021-35266, CVE-2021-35267, CVE-2021-35268, CVE-2021-35269, CVE-2021-3622, CVE-2021-3716, CVE-2021-3748, CVE-2021-39251, CVE-2021-39252, CVE-2021-39253, CVE-2021-39254, CVE-2021-39255, CVE-2021-39256, CVE-2021-39257, CVE-2021-39258, CVE-2021-39259, CVE-2021-39260, CVE-2021-39261, CVE-2021-39262, CVE-2021-39263, CVE-2021-3975, CVE-2021-4145
SHA-256 | cf2c26724e7650e1aeb0964cd78478438588a1ed37ddff36eb738dc4866cc442
Red Hat Security Advisory 2022-0397-03
Posted Feb 2, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0397-03 - The Advanced Virtualization module provides the user-space component for running virtual machines that use KVM in environments managed by Red Hat products. Issues addressed include a null pointer vulnerability.

tags | advisory
systems | linux, redhat
advisories | CVE-2021-20196, CVE-2021-3716
SHA-256 | 8f90f6bab53b7df3482285a4e9007416d2321d7b9947b9347db440fffe5d9aee
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