PT-2016-5808 · Qemu Team+5 · Qemu+5

Donghai Zdh · Published 2016-04-14 · Updated 2024-06-15 · CVE-2016-4020

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

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

Description The issue concerns the patch instruction function in hw/i386/kvmvapic.c which does not initialize the imm32 variable. This allows local guest OS administrators to obtain sensitive information from host stack memory by accessing the Task Priority Register (TPR).

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

Related Identifiers

ALT-PU-2017-1043

CESA-2017_1856

CVE-2016-4020

DLA-1599-1

DLA-573-1

DLA-574-1

MGASA-2016-0176

OPENSUSE-SU-2016_1750-1

OPENSUSE-SU-2016_2494-1

OPENSUSE-SU-2016_2497-1

OPENSUSE-SU-2024:10233-1

OPENSUSE-SU-2024:10285-1

RHSA-2017:1856

RHSA-2017:2392

RHSA-2017:2408

RHSA-2017_1856

SUSE-SU-2016:1560-1

SUSE-SU-2016:1698-1

SUSE-SU-2016:1703-1

SUSE-SU-2016:1785-1

SUSE-SU-2016:2093-1

SUSE-SU-2016:2100-1

SUSE-SU-2016:2533-1

USN-2974-1

Affected Products

Alt Linux

Centos

Qemu

Red Hat

Suse

Ubuntu

References · 467

• https://ubuntu.com/security/CVE-2016-2391 · Vendor Advisory
• https://bdu.fstec.ru/vul/2017-01031 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17963 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8577 · Security Note
• https://ubuntu.com/security/CVE-2016-3710 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-2392 · Vendor Advisory
• https://security-tracker.debian.org/tracker/DLA-1599-1 · Vendor Advisory
• https://security.gentoo.org/glsa/201609-01 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4037 · Security Note
• https://bdu.fstec.ru/vul/2017-00071 · Security Note
• https://bdu.fstec.ru/vul/2017-00069 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7155 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4454 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2016:2093-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7994 · Security Note