CVE-2018-17963 Integer overflow in n/a
Attackers can cause denial of service in QEMU by sending packets with sizes exceeding INT_MAX due to an integer overflow vulnerability.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-17963?
CVE-2018-17963 is a critical vulnerability in Canonical Ubuntu Linux, published on 9 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-190
Which versions are affected by CVE-2018-17963?
It affects 6 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Qemu Qemu, Redhat Openstack, Redhat Virtualization, Redhat Virtualization Manager.
How do I fix CVE-2018-17963?
Apply the vendor's patch.
Is CVE-2018-17963 being exploited?
There is no known exploitation of CVE-2018-17963 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as CVE-2018-19668, DEBIAN-CVE-2018-17963, GHSA-8mrp-f43f-c35w, UBUNTU-CVE-2018-17963.