CVE-2020-14364
First published: Mon Aug 17 2020(Updated: )
An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU in versions before 5.2.0. This issue occurs while processing USB packets from a guest when USBDevice 'setup_len' exceeds its 'data_buf[4096]' in the do_token_in, do_token_out routines. This flaw allows a guest user to crash the QEMU process, resulting in a denial of service, or the potential execution of arbitrary code with the privileges of the QEMU process on the host.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/qemu-kvm | <2:0.12.1.2-2.506.el6_10.8 | 2:0.12.1.2-2.506.el6_10.8 |
| redhat/qemu-kvm | <2:0.12.1.2-2.415.el6_5.21 | 2:0.12.1.2-2.415.el6_5.21 |
| redhat/qemu-kvm | <2:0.12.1.2-2.448.el6_6.9 | 2:0.12.1.2-2.448.el6_6.9 |
| redhat/qemu-kvm-ma | <10:2.12.0-48.el7_9.1 | 10:2.12.0-48.el7_9.1 |
| redhat/qemu-kvm | <10:1.5.3-175.el7_9.1 | 10:1.5.3-175.el7_9.1 |
| redhat/qemu-kvm | <10:1.5.3-105.el7_2.20 | 10:1.5.3-105.el7_2.20 |
| redhat/qemu-kvm | <10:1.5.3-126.el7_3.18 | 10:1.5.3-126.el7_3.18 |
| redhat/qemu-kvm | <10:1.5.3-141.el7_4.11 | 10:1.5.3-141.el7_4.11 |
| redhat/qemu-kvm | <10:1.5.3-160.el7_6.8 | 10:1.5.3-160.el7_6.8 |
| redhat/qemu-kvm-ma | <10:2.12.0-18.el7_6.7 | 10:2.12.0-18.el7_6.7 |
| redhat/qemu-kvm-ma | <10:2.12.0-33.el7_7.4 | 10:2.12.0-33.el7_7.4 |
| redhat/qemu-kvm | <10:1.5.3-167.el7_7.7 | 10:1.5.3-167.el7_7.7 |
| redhat/qemu-kvm-rhev | <10:2.12.0-33.el7_7.12 | 10:2.12.0-33.el7_7.12 |
| redhat/qemu-kvm-rhev | <10:2.12.0-48.el7_9.1 | 10:2.12.0-48.el7_9.1 |
| redhat/qemu-kvm-rhev | <10:2.12.0-18.el7_6.12 | 10:2.12.0-18.el7_6.12 |
| redhat/redhat-virtualization-host | <0:4.3.11-20200922.0.el7_9 | 0:4.3.11-20200922.0.el7_9 |
| redhat/redhat-virtualization-host | <0:4.4.2-20200930.0.el8_2 | 0:4.4.2-20200930.0.el8_2 |
| QEMU qemu | <5.2.0 | |
| Redhat Openstack | =10 | |
| Redhat Openstack | =13 | |
| Redhat Enterprise Linux | =6.0 | |
| Redhat Enterprise Linux | =7.0 | |
| Redhat Enterprise Linux | =8.0 | |
| Redhat Enterprise Linux | =8.0 | |
| Fedoraproject Fedora | =31 | |
| Fedoraproject Fedora | =32 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| openSUSE Leap | =15.2 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =20.04 | |
| debian/qemu | <=1:5.1+dfsg-3<=1:3.1+dfsg-8+deb10u7<=1:3.1+dfsg-8 | 1:5.1+dfsg-4 1:3.1+dfsg-8+deb10u8 |
| redhat/QEMU | <5.2.0 | 5.2.0 |
| debian/qemu | 1:5.2+dfsg-11+deb11u3 1:5.2+dfsg-11+deb11u2 1:7.2+dfsg-7+deb12u7 1:9.2.0+ds-2 |
Remedy
Using Libvirt management interface to manage guest VMs significantly reduces impact of this issue. Libvirt starts each guest process with an unprivileged system user(ex. qemu) privileges and further confines the process with strict sVirt and SELinux policies. * https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_security_guide/
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2020-14364 https://nvd.nist.gov/vuln/detail/CVE-2020-14364 https://www.openwall.com/lists/oss-security/2020/08/24/2 https://www.openwall.com/lists/oss-security/2020/08/24/3
- https://bugzilla.redhat.com/show_bug.cgi?id=1869201
- https://access.redhat.com/errata/RHSA-2020:4290
- https://access.redhat.com/errata/RHSA-2020:4291
- https://access.redhat.com/errata/RHSA-2020:4056
- https://access.redhat.com/errata/RHSA-2020:4054
- https://access.redhat.com/errata/RHSA-2020:4055
- https://access.redhat.com/errata/RHSA-2020:4078
- https://access.redhat.com/errata/RHSA-2020:4079
- https://access.redhat.com/errata/RHSA-2020:4048
- https://access.redhat.com/errata/RHSA-2020:4050
- https://access.redhat.com/errata/RHSA-2020:4051
- https://access.redhat.com/errata/RHSA-2020:4052
- https://access.redhat.com/errata/RHSA-2020:4162
- https://access.redhat.com/errata/RHSA-2020:4047
- https://access.redhat.com/errata/RHSA-2020:4053
- https://access.redhat.com/errata/RHSA-2020:4059
- https://access.redhat.com/errata/RHSA-2020:4058
- https://access.redhat.com/errata/RHSA-2020:4049
- https://access.redhat.com/errata/RHSA-2020:4176
- https://access.redhat.com/errata/RHSA-2020:4167
- https://access.redhat.com/errata/RHSA-2020:4111
- https://access.redhat.com/errata/RHSA-2020:4115
- https://access.redhat.com/errata/RHSA-2020:4172
- https://access.redhat.com/security/cve/cve-2020-14364
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html
- https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JTZQUQ6ZBPMFMNAUQBVJFELYNMUZLL6P/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M52WIRMZL6TZRYZ65N6OAYNNFHV62O2N/
- https://security.gentoo.org/glsa/202009-14
- https://security.gentoo.org/glsa/202011-09
- https://security.netapp.com/advisory/ntap-20200924-0006/
- https://usn.ubuntu.com/4511-1/
- https://www.debian.org/security/2020/dsa-4760
- https://www.openwall.com/lists/oss-security/2020/08/24/2
- https://www.openwall.com/lists/oss-security/2020/08/24/3
- https://security-tracker.debian.org/tracker/CVE-2020-14364
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14364
- https://xenbits.xen.org/xsa/advisory-335.html
- https://security-tracker.debian.org/tracker/CVE-2020-16092
- https://security-tracker.debian.org/tracker/CVE-2020-13765
- https://security-tracker.debian.org/tracker/CVE-2020-15863
- https://security-tracker.debian.org/tracker/CVE-2020-12829
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=968947
- https://launchpad.net/bugs/cve/CVE-2020-14364
- https://lists.gnu.org/archive/html/qemu-devel/2020-08/msg05969.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1871849
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1871850
- https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_security_guide/
- https://access.redhat.com/support/policy/updates/errata/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JTZQUQ6ZBPMFMNAUQBVJFELYNMUZLL6P/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M52WIRMZL6TZRYZ65N6OAYNNFHV62O2N/
- https://git.qemu.org/?p=qemu.git;a=commitdiff;h=b946434f2659a182afc17e155be6791ebfb302eb
- https://nvd.nist.gov/vuln/detail/CVE-2020-14364
- https://ubuntu.com/security/CVE-2020-14364
Parent vulnerabilities
(Appears in the following advisories)
- RHSA-2020:4290
- RHSA-2020:4291
- RHSA-2020:4056
- RHSA-2020:4054
- RHSA-2020:4055
- RHSA-2020:4078
- RHSA-2020:4079
- RHSA-2020:4048
- RHSA-2020:4050
- RHSA-2020:4051
- RHSA-2020:4052
- RHSA-2020:4162
- RHSA-2020:4047
- RHSA-2020:4053
- RHSA-2020:4059
- RHSA-2020:4058
- RHSA-2020:4049
- RHSA-2020:4176
- RHSA-2020:4167
- RHSA-2020:4111
- RHSA-2020:4115
- RHSA-2020:4172
Frequently Asked Questions
What is CVE-2020-14364?
CVE-2020-14364 is an out-of-bounds read/write access flaw found in the USB emulator of the QEMU.
What is the severity of CVE-2020-14364?
CVE-2020-14364 has a severity level of high.
What software versions are affected by CVE-2020-14364?
QEMU versions before 5.2.0 are affected by CVE-2020-14364.
How can I fix CVE-2020-14364?
To fix CVE-2020-14364, update QEMU to version 5.2.0 or later.
Are there any references for CVE-2020-14364?
Yes, you can find more information about CVE-2020-14364 at the following references: [link1](https://lists.gnu.org/archive/html/qemu-devel/2020-08/msg05969.html) [link2](https://www.openwall.com/lists/oss-security/2020/08/24/3) [link3](https://www.openwall.com/lists/oss-security/2020/08/24/2)
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