CVE-2016-1922

CVSS V2 Low 2.1 CVSS V3 Medium 5.5
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 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.
Overview
  • CVE ID
  • CVE-2016-1922
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2016-12-29T22:59:00
  • Last Modified Date
  • 2020-11-10T18:46:02
Weakness Enumerations
CWE URL
CWE-476 http://cwe.mitre.org/data/definitions/476.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* 1 OR 2.5.1.1
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 2.1
  • Severity
  • LOW
  • Exploitability Score
  • 3.9
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg02812.html Patch Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1283934 Issue Tracking Third Party Advisory
http://www.securityfocus.com/bid/81058 Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2016/01/16/6 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/01/16/1 Mailing List Third Party Advisory
https://security.gentoo.org/glsa/201604-01 Third Party Advisory
http://www.debian.org/security/2016/dsa-3471 Third Party Advisory
http://www.debian.org/security/2016/dsa-3470 Third Party Advisory
http://www.debian.org/security/2016/dsa-3469 Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2016-1922
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1922
History
Created Old Value New Value Data Type Notes
2022-05-10 16:20:30 Added to TrackCVE
2022-12-02 12:38:00 2016-12-29T22:59Z 2016-12-29T22:59:00 CVE Published Date updated
2022-12-02 12:38:00 2020-11-10T18:46:02 CVE Modified Date updated
2022-12-02 12:38:00 Analyzed Vulnerability Status updated