Vulnerability CVE-2018-5683
Published: 2018-01-23

Description:
The vga_draw_text function in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging improper memory address validation.

Type:

CWE-125

 (Out-of-bounds Read)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Redhat -> Virtualization 
Redhat -> Enterprise linux desktop 
Redhat -> Enterprise linux server 
Redhat -> Enterprise linux server aus 
Redhat -> Enterprise linux server eus 
Redhat -> Enterprise linux server tus 
Redhat -> Enterprise linux workstation 
QEMU -> QEMU 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

 References:
http://www.openwall.com/lists/oss-security/2018/01/15/2
http://www.securityfocus.com/bid/102518
https://access.redhat.com/errata/RHSA-2018:0816
https://access.redhat.com/errata/RHSA-2018:1104
https://access.redhat.com/errata/RHSA-2018:2162
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
https://lists.gnu.org/archive/html/qemu-devel/2018-01/msg02597.html
https://usn.ubuntu.com/3575-1/
https://www.debian.org/security/2018/dsa-4213
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