CVE-2015-6855
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.3 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.011 Low
EPSS
Percentile
84.5%
hw/ide/core.c in QEMU does not properly restrict the commands accepted by an ATAPI device, which allows guest users to cause a denial of service or possibly have unspecified other impact via certain IDE commands, as demonstrated by a WIN_READ_NATIVE_MAX command to an empty drive, which triggers a divide-by-zero error and instance crash.
References
lists.fedoraproject.org/pipermail/package-announce/2015-October/168602.html
lists.fedoraproject.org/pipermail/package-announce/2015-October/169036.html
lists.fedoraproject.org/pipermail/package-announce/2015-October/169039.html
lists.fedoraproject.org/pipermail/package-announce/2015-October/169327.html
lists.fedoraproject.org/pipermail/package-announce/2015-October/169341.html
lists.fedoraproject.org/pipermail/package-announce/2015-September/167369.html
lists.opensuse.org/opensuse-security-announce/2015-10/msg00019.html
www.debian.org/security/2015/dsa-3361
www.debian.org/security/2015/dsa-3362
www.openwall.com/lists/oss-security/2015/09/10/1
www.openwall.com/lists/oss-security/2015/09/10/2
www.securityfocus.com/bid/76691
www.ubuntu.com/usn/USN-2745-1
lists.gnu.org/archive/html/qemu-devel/2015-09/msg02479.html
security.gentoo.org/glsa/201602-01
www.arista.com/en/support/advisories-notices/security-advisories/1188-security-advisory-14
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.3 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.011 Low
EPSS
Percentile
84.5%