CVE-2016-1922

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Summary

CVECVE-2016-1922
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-12-29 22:59:00 UTC
Updated2020-11-10 18:46:00 UTC
DescriptionQEMU (aka Quick Emulator) built with the TPR optimization for 32-bit Windows guests support is vulnerable to a null pointer dereference flaw. It occurs while doing I/O port write operations via hmp interface. In that, 'current_cpu' remains null, which leads to the null pointer dereference. A user or process could use this flaw to crash the QEMU instance, resulting in DoS issue.

Risk And Classification

Problem Types: CWE-476

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 7.0 All All All
Operating System Debian Debian Linux 8.0 All All All
Operating System Debian Debian Linux 7.0 All All All
Operating System Debian Debian Linux 8.0 All All All
Application Qemu Qemu All All All All

References

ReferenceSourceLinkTags
Debian -- Security Information -- DSA-3471-1 qemu DEBIAN www.debian.org Third Party Advisory
Debian -- Security Information -- DSA-3469-1 qemu DEBIAN www.debian.org Third Party Advisory
oss-security - CVE request Qemu: i386: null pointer dereference in vapic_write MLIST www.openwall.com Mailing List, Third Party Advisory
QEMU 'i386/kvmvapic.c' NULL Pointer Dereference Denial of Service Vulnerability BID www.securityfocus.com Third Party Advisory, VDB Entry
Debian -- Security Information -- DSA-3470-1 qemu-kvm DEBIAN www.debian.org Third Party Advisory
oss-security - Re: CVE request Qemu: i386: null pointer dereference in vapic_write MLIST www.openwall.com Mailing List, Third Party Advisory
[Qemu-devel] [PULL] i386: avoid null pointer dereference MLIST lists.gnu.org Patch, Vendor Advisory
Bug 1283934 – CVE-2016-1922 Qemu: i386: null pointer dereference in vapic_write() CONFIRM bugzilla.redhat.com Issue Tracking, Third Party Advisory
QEMU: Multiple vulnerabilities (GLSA 201604-01) — Gentoo Security GENTOO security.gentoo.org Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 900063 CBL-Mariner Linux Security Update for qemu-kvm 4.2.0
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