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CVE-2020-27617

Status Candidate

Overview

eth_get_gso_type in net/eth.c in QEMU 4.2.1 allows guest OS users to trigger an assertion failure. A guest can crash the QEMU process via packet data that lacks a valid Layer 3 protocol.

Related Files

Red Hat Security Advisory 2021-3061-01
Posted Aug 10, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3061-01 - 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, denial of service, and out of bounds access vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-13754, CVE-2020-27617, CVE-2021-20221, CVE-2021-3416, CVE-2021-3504
SHA-256 | 66e0a1ac543249bbe6d765192ae964d7bdf8592d935524bd9c4a35ee66ca180c
Ubuntu Security Notice USN-4650-1
Posted Nov 30, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4650-1 - Alexander Bulekov discovered that QEMU incorrectly handled SDHCI device emulation. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. Sergej Schumilo, Cornelius Aschermann, and Simon Wrner discovered that QEMU incorrectly handled USB device emulation. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2020-17380, CVE-2020-25084, CVE-2020-25085, CVE-2020-25624, CVE-2020-25625, CVE-2020-25723, CVE-2020-27616, CVE-2020-27617
SHA-256 | ea01fe69cd26600b57476ee03d48b48a6c3fe133a001952a3d96808636eb4efc
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