Integer overflow in Qemu
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 class: Integer Overflow
EPSS: 0.048 (90.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Qemu — versions 3.1.0
- Canonical Ubuntu_linux — versions 14.04, 16.04, 18.04
- Debian Debian_linux — versions 8.0, 9.0
- Redhat Openstack — versions 10, 13, 14
- Redhat Virtualization — versions 4.0
- Redhat Virtualization_manager — versions 4.3
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Patch, Mailing List, Third Party Advisory)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- cve@mitre.org (Patch, Mailing List, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- cve@mitre.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- cve@mitre.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-17963?
- CVE-2018-17963 is a critical-severity vulnerability in Qemu, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2018-10-09.
- How severe is CVE-2018-17963?
- Critical severity. CVSS v3 base score is 9.8 out of 10.