critical
9.8
CWE
121 190
Advisory Published
Updated

CVE-2018-17963: Integer Overflow

First published: Mon May 21 2018(Updated: )

A potential integer overflow issue was found in the networking back-end of QEMU. It could occur while receiving packets, because it accepted packets with large size value. Such overflow could lead to OOB buffer access issue. A user inside guest could use this flaw to crash the QEMU process resulting in DoS.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/qemu-kvm-ma<10:2.12.0-33.el7
10:2.12.0-33.el7
redhat/qemu-kvm-rhev<10:2.12.0-33.el7
10:2.12.0-33.el7
debian/qemu<=1:2.12+dfsg-3<=1:2.8+dfsg-6
1:2.8+dfsg-6+deb9u5
1:3.1+dfsg-1
QEMU qemu<=3.0.0
QEMU qemu=3.1.0-rc0
QEMU qemu=3.1.0-rc1
QEMU qemu=3.1.0-rc2
QEMU qemu=3.1.0-rc3
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=18.10
Redhat Openstack=10
Redhat Openstack=13
Redhat Openstack=14
Redhat Virtualization=4.0
Redhat Virtualization Manager=4.3
ubuntu/qemu<1:2.11+dfsg-1ubuntu7.8
1:2.11+dfsg-1ubuntu7.8
ubuntu/qemu<1:2.12+dfsg-3ubuntu8.1
1:2.12+dfsg-3ubuntu8.1
ubuntu/qemu<1:2.12+dfsg-3ubuntu9
1:2.12+dfsg-3ubuntu9
ubuntu/qemu<1:2.12+dfsg-3ubuntu9
1:2.12+dfsg-3ubuntu9
ubuntu/qemu<1:2.12+dfsg-3ubuntu9
1:2.12+dfsg-3ubuntu9
ubuntu/qemu<1:2.12+dfsg-3ubuntu9
1:2.12+dfsg-3ubuntu9
ubuntu/qemu<1:2.12+dfsg-3ubuntu9
1:2.12+dfsg-3ubuntu9
ubuntu/qemu<2.0.0+dfsg-2ubuntu1.44
2.0.0+dfsg-2ubuntu1.44
ubuntu/qemu<1:2.5+dfsg-5ubuntu10.33
1:2.5+dfsg-5ubuntu10.33
debian/qemu
1:3.1+dfsg-8+deb10u8
1:3.1+dfsg-8+deb10u11
1:5.2+dfsg-11+deb11u3
1:5.2+dfsg-11+deb11u2
1:7.2+dfsg-7+deb12u5
1:8.2.1+ds-1
1:8.2.1+ds-2

Remedy

https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03267.html

Remedy

https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg06054.html

Remedy

https://git.qemu.org/?p=qemu.git;a=commit;h=1592a9947036d60dde5404204a5d45975133caf5

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2018-17963?

    CVE-2018-17963 is a vulnerability in the networking back-end of QEMU, which could result in an integer overflow and OOB buffer access issue.

  • How severe is CVE-2018-17963?

    CVE-2018-17963 has a severity rating of 9.8 (critical).

  • Which software is affected by CVE-2018-17963?

    QEMU versions up to and including 3.0.0 are affected, as well as specific versions of qemu-kvm-ma, qemu-kvm-rhev, qemu (Debian), qemu (Ubuntu), QEMU qemu, Debian Debian Linux, Canonical Ubuntu Linux, Redhat Openstack, Redhat Virtualization, and Redhat Virtualization Manager.

  • How can I fix CVE-2018-17963?

    To fix CVE-2018-17963, update QEMU to version 3.0.1 or later, or apply the relevant security patches for the specific software affected.

  • Where can I find more information about CVE-2018-17963?

    You can find more information about CVE-2018-17963 on the QEMU mailing list archives, the QEMU Git repository, and the OSS Security mailing list.

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