CVE-2016-1922
QEMU (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
02 Description
QEMU (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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.43% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 37.3% of scored records. A rank, not a probability.
- NVD base score
- 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2016-12-29 22:00Z9 YR AGO
- Last updated
- 2024-08-05 23:10Z2 YR AGO
- Reserved
- 2016-01-16
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-476NULL Pointer DereferenceBase
- Data version
- 5.1
- Document digest
- 80c112a0ebb33c676ee603bf6109568c81bf4cd265daf25f262c75f010deb143
05 Affected products
06 References
- www.openwall.com[oss-security] 20160116 CVE request Qemu: i386: null pointer dereference in vapic_writehttp://www.openwall.com/lists/oss-security/2016/01/16/1
- security.gentoo.orgGLSA-201604-01https://security.gentoo.org/glsa/201604-01
- www.openwall.com[oss-security] 20160116 Re: CVE request Qemu: i386: null pointer dereference in vapic_writehttp://www.openwall.com/lists/oss-security/2016/01/16/6
- www.debian.orgDSA-3469http://www.debian.org/security/2016/dsa-3469
- www.debian.orgDSA-3470http://www.debian.org/security/2016/dsa-3470
- www.debian.orgDSA-3471http://www.debian.org/security/2016/dsa-3471
- lists.gnu.org[qemu-devel] 20160115 [PULL] i386: avoid null pointer dereferencehttps://lists.gnu.org/archive/html/qemu-devel/2016-01/msg02812.html
- www.securityfocus.com81058http://www.securityfocus.com/bid/81058
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1283934
07 Fixed in
Debian 12
- qemu Fixed in 1:2.5+dfsg-4
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- qemu Fixed in 1:2.5+dfsg-4
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- qemu Fixed in 1:2.5+dfsg-4
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- qemu Fixed in 2.0.0+dfsg-2ubuntu1.22
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.