Vulnerability Details : CVE-2017-12809
QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator support, allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by flushing an empty CDROM device drive.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2017-12809
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:2.10.0:rc0:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:2.10.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:2.10.0:rc2:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-12809
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 23 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-12809
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |
2.0
|
4.0
|
NIST |
CWE ids for CVE-2017-12809
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-12809
-
http://www.securityfocus.com/bid/100451
Qemu CVE-2017-12809 Null Pointer Dereference Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg01850.html
[Qemu-devel] [PATCH 1/2] IDE: Do not flush empty CDROM drivesPatch;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2017/08/21/2
oss-security - CVE-2017-12809 Qemu: ide: flushing of empty CDROM drives leads to NULL dereferenceMailing List;Third Party Advisory
-
http://www.debian.org/security/2017/dsa-3991
Debian -- Security Information -- DSA-3991-1 qemuThird Party Advisory
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