Vulnerability Details : CVE-2018-17963
qemu_deliver_packet_iov in net/net.c in Qemu accepts packet sizes greater than INT_MAX, which allows attackers to cause a denial of service or possibly have unspecified other impact.
Vulnerability category: OverflowDenial of service
Products affected by CVE-2018-17963
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openstack:14:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:virtualization_manager:4.3:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:3.1.0:rc0:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:3.1.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:3.1.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:3.1.0:rc3:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-17963
4.01%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 87 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-17963
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2018-17963
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-17963
-
https://access.redhat.com/errata/RHSA-2019:2553
RHSA-2019:2553 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2018/10/08/1
oss-security - Qemu: integer overflow issuesMailing List;Third Party Advisory
-
https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03267.html
[Qemu-devel] [PULL 24/25] net: ignore packet size greater than INT_MAXMailing List;Patch;Third Party Advisory
-
https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg06054.html
[Qemu-devel] [PATCH for 3.1 0/4] Fix possible OOB during queuing packetsMailing List;Patch;Third Party Advisory
-
https://www.debian.org/security/2018/dsa-4338
Debian -- Security Information -- DSA-4338-1 qemuThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
[SECURITY] [DLA 1599-1] qemu security updateMailing List;Third Party Advisory
-
https://access.redhat.com/errata/RHSA-2019:2425
RHSA-2019:2425 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
https://usn.ubuntu.com/3826-1/
USN-3826-1: QEMU vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://access.redhat.com/errata/RHSA-2019:2166
RHSA-2019:2166 - Security Advisory - Red Hat Customer PortalThird Party Advisory
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