CVE-2018-17963
CRITICAL severity · CVSS 9.8 · Integer overflow
9.8CVSS CRITICAL
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)5%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03267.html ↗
Additional information
- NVD record
- https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03267.htmlPatch
- https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg06054.htmlPatch
- http://www.openwall.com/lists/oss-security/2018/10/08/1Advisory
- https://access.redhat.com/errata/RHSA-2019:2166Advisory
- https://access.redhat.com/errata/RHSA-2019:2425Advisory
- https://access.redhat.com/errata/RHSA-2019:2553Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlAdvisory
- https://usn.ubuntu.com/3826-1/Advisory