PT-2018-2474 · Qemu+5 · Qemu+5

Ross Lagerwall · Published 2018-03-12 · Updated 2024-06-15 · CVE-2018-7858

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Quick Emulator (aka QEMU) (affected versions not specified)

Description The issue allows local guest OS privileged users to cause a denial of service by leveraging incorrect region calculation when updating VGA display, potentially leading to out-of-bounds access and a QEMU process crash. It is related to the Cirrus CLGD 54xx VGA Emulator support. The vulnerability can be exploited to write data beyond a specified buffer, resulting in a denial of service.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

ALT-PU-2018-1657

BDU:2019-00721

CESA-2018_1416

CESA-2018_2162

CVE-2018-7858

OPENSUSE-SU-2019_1074-1

OPENSUSE-SU-2024:11287-1

RHSA-2018:1369

RHSA-2018:1416

RHSA-2018:1643

RHSA-2018:1644

RHSA-2018:1645

RHSA-2018:1646

RHSA-2018:2162

RHSA-2018_1416

RHSA-2018_2162

SUSE-SU-2019:0489-1

SUSE-SU-2019:0582-1

USN-3649-1

Affected Products

Alt Linux

Centos

Qemu

Red Hat

Suse

Ubuntu

References · 227

• 🔥 https://github.com/mmxsrup/CVE-2018-3639 · Exploit
• https://linux.oracle.com/errata/ELSA-2018-4285.html · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-7858 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16845 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-7858 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2018-4289.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16845 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-00704 · Security Note
• https://errata.altlinux.org/ALT-PU-2018-1657 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-7858 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7858 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-7858 · Security Note
• https://linux.oracle.com/errata/ELSA-2018-2162.html · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:2162 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-7550 · Vendor Advisory