CVE-2018-17963
CRITICAL · CVSS 9.8EPSS 4.7%EU EUVD
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.
Key facts
- CVSS score
- 9.8 (v3.1)
- Severity
- CRITICAL
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
- CWE-190
- EPSS score
- 4.7% (92th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2018-9703)
- Published
- October 9, 2018
- NVD last modified
- June 17, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2018-9703 in the EU Vulnerability Database. Last updated in EUVD on August 5, 2024.
View on the EU Vulnerability DatabaseAffected products
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- debian / debian linux
- debian / debian linux
- qemu / qemu
- qemu / qemu
- qemu / qemu
- qemu / qemu
- qemu / qemu
- redhat / openstack
- redhat / openstack
- redhat / openstack
- redhat / virtualization
- redhat / virtualization manager
Certified products that may be affected
1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.
- Red Hat Virtualization v4.3 - Red Hat, Inc. - Common Criteria OCSI/CERT/ATS/08/2020/RC - active
References
- http://www.openwall.com/lists/oss-security/2018/10/08/1(Mailing List, Third Party Advisory)
- https://access.redhat.com/errata/RHSA-2019:2166(Third Party Advisory)
- https://access.redhat.com/errata/RHSA-2019:2425(Third Party Advisory)
- https://access.redhat.com/errata/RHSA-2019:2553(Third Party Advisory)
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html(Mailing List, Third Party Advisory)
- https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03267.html(Mailing List, Patch, Third Party Advisory)
- https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg06054.html(Mailing List, Patch, Third Party Advisory)
- https://usn.ubuntu.com/3826-1/(Third Party Advisory)
- https://www.debian.org/security/2018/dsa-4338(Third Party Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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