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CVE-2018-10839

Status Candidate

Overview

Qemu emulator <= 3.0.0 built with the NE2000 NIC emulation support is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network. A user inside guest could use this flaw to crash the Qemu process resulting in DoS.

Related Files

Red Hat Security Advisory 2019-2892-01
Posted Sep 24, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2892-01 - Kernel-based Virtual Machine is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM. Issues addressed include buffer overflow and null pointer vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2018-10839, CVE-2018-11806, CVE-2018-17962, CVE-2019-12155, CVE-2019-6778
SHA-256 | 0fcbebe953b6c4aada1fd3c4b1308f4ee58c35bc19df6c3803aefe01b2e4c60a
Ubuntu Security Notice USN-3826-1
Posted Nov 26, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3826-1 - Daniel Shapira and Arash Tohidi discovered that QEMU incorrectly handled NE2000 device emulation. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. It was discovered that QEMU incorrectly handled the Slirp networking back-end. A privileged 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. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2018-10839, CVE-2018-11806, CVE-2018-12617, CVE-2018-16847, CVE-2018-17958, CVE-2018-17962, CVE-2018-17963, CVE-2018-18849, CVE-2018-18954, CVE-2018-19364
SHA-256 | 4e4c876bb878a34b2dd16b55e3b1d2a08ed115428511e04586ecb54058caa47b
Debian Security Advisory 4338-1
Posted Nov 12, 2018
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4338-1 - Integer overflows in the processing of packets in network cards emulated by QEMU, a fast processor emulator, could result in denial of service.

tags | advisory, denial of service, overflow
systems | linux, debian
advisories | CVE-2018-10839, CVE-2018-17962, CVE-2018-17963
SHA-256 | 3ee919b5ecb75492da066ae2c408500b9f95c2ae0828d39c6915d853e0f6a2af
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