PT-2016-4923 · Qemu+3 · Qemu+3

Ling Liu · Published 2016-01-19 · Updated 2024-06-15 · CVE-2016-1922

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 QEMU (affected versions not specified)

Description A null pointer dereference flaw exists in QEMU when built with the TPR optimization for 32-bit Windows guests support. The issue occurs during I/O port write operations via the hmp interface, where the current cpu remains null, leading to a null pointer dereference. This flaw can be exploited by a user or process to crash the QEMU instance, resulting in a denial of service issue.

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

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2016-1565

CVE-2016-1922

DSA-3469-1

DSA-3470-1

DSA-3471-1

MGASA-2016-0176

OPENSUSE-SU-2016_1750-1

OPENSUSE-SU-2024:10196-1

SUSE-SU-2016:0873-1

SUSE-SU-2016:0955-1

SUSE-SU-2016:1318-1

SUSE-SU-2016:1560-1

SUSE-SU-2016:1698-1

SUSE-SU-2016:1703-1

SUSE-SU-2016:1785-1

USN-2891-1

Affected Products

Alt Linux

Qemu

Suse

Ubuntu

References · 402

• https://bdu.fstec.ru/vul/2017-01031 · Security Note
• http://debian.org/security/2016/dsa-3469 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8567 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-1922 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:0955-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8504 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8745 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1714 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4037 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8743 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6835 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8619 · Security Note
• http://debian.org/security/2016/dsa-3471 · Vendor Advisory
• https://errata.altlinux.org/ALT-PU-2016-1565 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8666 · Security Note