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Linux Distros Unpatched Vulnerability : CVE-2020-10756

medium Nessus Plugin ID 223038

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - An out-of-bounds read vulnerability was found in the SLiRP networking implementation of the QEMU emulator.
 This flaw occurs in the icmp6_send_echoreply() routine while replying to an ICMP echo request, also known as ping. This flaw allows a malicious guest to leak the contents of the host memory, resulting in possible information disclosure. This flaw affects versions of libslirp before 4.3.1. (CVE-2020-10756)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2020-10756

https://ubuntu.com/security/CVE-2020-10756

Plugin Details

Severity: Medium

ID: 223038

File Name: unpatched_CVE_2020_10756.nasl

Version: 1.3

Type: local

Agent: unix

Family: Misc.

Published: 3/4/2025

Updated: 8/8/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2020-10756

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:centos:centos:qemu-kvm-common, p-cpe:/a:redhat:enterprise_linux:qemu-guest-agent, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-tools-rhev, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-common-rhev, p-cpe:/a:redhat:enterprise_linux:qemu-img, p-cpe:/a:centos:centos:qemu-img-ma, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-rhev, p-cpe:/a:centos:centos:qemu-kvm-common-rhev, p-cpe:/a:redhat:enterprise_linux:qemu-kvm, p-cpe:/a:centos:centos:qemu-kvm, p-cpe:/a:centos:centos:qemu-img-rhev, p-cpe:/a:centos:centos:qemu-kvm-rhev, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:qemu-guest-agent, p-cpe:/a:centos:centos:qemu-kvm-tools-rhev, cpe:/a:redhat:advanced_virtualization:8::el8, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-ma, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-common-ma, p-cpe:/a:centos:centos:qemu-kvm-tools-ma, p-cpe:/a:centos:centos:qemu-kvm-ma, p-cpe:/a:centos:centos:qemu-img, cpe:/o:centos:centos:7, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:slirp4netns, p-cpe:/a:canonical:ubuntu_linux:slirp4netns, p-cpe:/a:redhat:enterprise_linux:qemu-img-ma, p-cpe:/a:centos:centos:slirp4netns, p-cpe:/a:redhat:enterprise_linux:qemu-img-rhev, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-tools-ma, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-common, p-cpe:/a:centos:centos:qemu-kvm-common-ma

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 7/8/2020

Reference Information

CVE: CVE-2020-10756