CVE-2016-8667
The rc4030_write function in hw/dma/rc4030.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (divide-by-zero error and QEMU process crash) via a large
02 Description
The rc4030_write function in hw/dma/rc4030.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (divide-by-zero error and QEMU process crash) via a large
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
- 0.39% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 32.8% of scored records. A rank, not a probability.
- NVD base score
- 6.0 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/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
- 2016-11-04 21:00Z9 YR AGO
- Last updated
- 2024-08-06 02:27Z2 YR AGO
- Reserved
- 2016-10-15
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-369Divide By ZeroBase
- Data version
- 5.1
- Document digest
- 9f6da9f2e09a4eac2482a3f6f10215632cfe1a081a5ca5210824d77e5025b50b
05 Affected products
06 References
- www.openwall.com[oss-security] 20161015 Re: CVE request Qemu: dma: rc4030 divide by zero error in set_next_tickhttp://www.openwall.com/lists/oss-security/2016/10/15/4
- lists.debian.org[debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security updatehttps://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
- www.securityfocus.com93567http://www.securityfocus.com/bid/93567
- lists.gnu.org[qemu-devel] 20161012 [PATCH] dma: rc4030: limit interval timer reload valuehttps://lists.gnu.org/archive/html/qemu-devel/2016-10/msg02577.html
- lists.opensuse.orgopenSUSE-SU-2016:3237http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
- www.openwall.com[oss-security] 20161014 CVE request Qemu: dma: rc4030 divide by zero error in set_next_tickhttp://www.openwall.com/lists/oss-security/2016/10/14/6
07 Fixed in
Debian 12
- qemu Fixed in 1:2.8+dfsg-4
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- qemu Fixed in 1:2.8+dfsg-4
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- qemu Fixed in 1:2.8+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-2ubuntu1.33
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- qemu Fixed in 1:2.5+dfsg-5ubuntu10.11
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.