CVE-2020-10756

MEDIUM

QEMU <4.3.1 - Info Disclosure

Title source: llm

Description

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.

References (10)

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00035.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00040.html

[Issue Tracking, Patch, Third Party Advisory] https://bugzilla.redhat.com/show_bug.cgi?id=1835986

[Mailing List, Third Party Advisory] https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html

[Third Party Advisory] https://security.netapp.com/advisory/ntap-20201001-0001/

[Third Party Advisory] https://usn.ubuntu.com/4437-1/

[Third Party Advisory] https://usn.ubuntu.com/4467-1/

[Mailing List, Third Party Advisory] https://www.debian.org/security/2020/dsa-4728

[Third Party Advisory, VDB Entry] https://www.zerodayinitiative.com/advisories/ZDI-20-1005/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYTZ32P67PZER6P7TW6FQK3SZRKQLVEI/

Scores

CVSS v3 6.5

EPSS 0.0003

EPSS Percentile 6.4%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Classification

CWE

CWE-125

Status published

Affected Products (12)

libslirp_project/libslirp < 4.3.1

redhat/openstack

redhat/enterprise_linux

redhat/enterprise_linux

redhat/enterprise_linux

canonical/ubuntu_linux

canonical/ubuntu_linux

canonical/ubuntu_linux

debian/debian_linux

debian/debian_linux

opensuse/leap

opensuse/leap

Timeline

Published Jul 09, 2020

Tracked Since Feb 18, 2026