Vulnerability · Published Aug 31, 2020 · Assigned by redhat
CVE-2020-14364
Medium 5.0
In plain English
A medium-severity out-of-bounds read in QEMU. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 5.4% (higher than 93% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.0Medium
Exploit odds (30 days)5.4%top 7.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Public PoC
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | libiscsi | 1.18.0-8.module_el8.6.0+2880+7d9e3703 | ALSA-2020:4059 |
| AlmaLinux:8 | libiscsi | 1.18.0-8.module_el8.5.0+2608+72063365 | ALSA-2020:4059 |
| AlmaLinux:8 | libiscsi | 1.18.0-8.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4059 |
| AlmaLinux:8 | libiscsi-devel | 1.18.0-8.module_el8.6.0+2880+7d9e3703 | ALSA-2020:4059 |
| AlmaLinux:8 | libiscsi-devel | 1.18.0-8.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4059 |
| AlmaLinux:8 | libiscsi-devel | 1.18.0-8.module_el8.5.0+2608+72063365 | ALSA-2020:4059 |
| AlmaLinux:8 | libiscsi-utils | 1.18.0-8.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4059 |
| AlmaLinux:8 | libiscsi-utils | 1.18.0-8.module_el8.6.0+2880+7d9e3703 | ALSA-2020:4059 |
| AlmaLinux:8 | libiscsi-utils | 1.18.0-8.module_el8.5.0+2608+72063365 | ALSA-2020:4059 |
| AlmaLinux:8 | netcf | 0.2.8-12.module_el8.5.0+2608+72063365 | ALSA-2020:4059 |
| AlmaLinux:8 | netcf | 0.2.8-12.module_el8.6.0+2880+7d9e3703 | ALSA-2020:4059 |
| AlmaLinux:8 | netcf | 0.2.8-12.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4059 |
| AlmaLinux:8 | netcf-devel | 0.2.8-12.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4059 |
| AlmaLinux:8 | netcf-devel | 0.2.8-12.module_el8.5.0+2608+72063365 | ALSA-2020:4059 |
| AlmaLinux:8 | netcf-devel | 0.2.8-12.module_el8.6.0+2880+7d9e3703 | ALSA-2020:4059 |
| AlmaLinux:8 | netcf-libs | 0.2.8-12.module_el8.6.0+2880+7d9e3703 | ALSA-2020:4059 |
| AlmaLinux:8 | netcf-libs | 0.2.8-12.module_el8.5.0+2608+72063365 | ALSA-2020:4059 |
| AlmaLinux:8 | netcf-libs | 0.2.8-12.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4059 |
| AlmaLinux:8 | sgabios | 1:0.20170427git-3.module_el8.5.0+2608+72063365 | ALSA-2020:4059 |
| AlmaLinux:8 | sgabios | 1:0.20170427git-3.module_el8.3.0+2048+e7a0a3ea | ALSA-2020:4059 |
| AlmaLinux:8 | sgabios-bin | 1:0.20170427git-3.module_el8.5.0+2608+72063365 | ALSA-2020:4059 |
| AlmaLinux:8 | sgabios-bin | 1:0.20170427git-3.module_el8.6.0+2880+7d9e3703 | ALSA-2020:4059 |
| Alpine:v3.20 | qemu | 5.1.0-r1 | ALPINE-CVE-2020-14364 |
| Alpine:v3.21 | qemu | 5.1.0-r1 | ALPINE-CVE-2020-14364 |
| Alpine:v3.22 | qemu | 5.1.0-r1 | ALPINE-CVE-2020-14364 |
| Alpine:v3.23 | qemu | 5.1.0-r1 | ALPINE-CVE-2020-14364 |
| Alpine:v3.24 | qemu | 5.1.0-r1 | ALPINE-CVE-2020-14364 |
| Alpine:v3.20 | xen | 4.13.1-r5 | ALPINE-CVE-2020-14364 |
| Alpine:v3.21 | xen | 4.13.1-r5 | ALPINE-CVE-2020-14364 |
| Alpine:v3.22 | xen | 4.13.1-r5 | ALPINE-CVE-2020-14364 |
| Alpine:v3.23 | xen | 4.13.1-r5 | ALPINE-CVE-2020-14364 |
| Alpine:v3.24 | xen | 4.13.1-r5 | ALPINE-CVE-2020-14364 |
| Debian:12 | qemu | 1:5.1+dfsg-4 | DEBIAN-CVE-2020-14364 |
| Debian:13 | qemu | 1:5.1+dfsg-4 | DEBIAN-CVE-2020-14364 |
| Debian:14 | qemu | 1:5.1+dfsg-4 | DEBIAN-CVE-2020-14364 |
| Rocky Linux:8 | libiscsi | 0:1.18.0-8.module+el8.4.0+534+4680a14e | RLSA-2020:4059 |
| Rocky Linux:8 | libiscsi | 0:1.18.0-8.module+el8.6.0+847+b490afdd | RLSA-2020:4059 |
| Rocky Linux:8 | libiscsi | 0:1.18.0-8.module+el8.7.0+1084+97b81f61 | RLSA-2020:4059 |
| Rocky Linux:8 | netcf | 0:0.2.8-12.module+el8.7.0+1084+97b81f61 | RLSA-2020:4059 |
| Rocky Linux:8 | netcf | 0:0.2.8-12.module+el8.4.0+534+4680a14e | RLSA-2020:4059 |
| Rocky Linux:8 | netcf | 0:0.2.8-12.module+el8.6.0+847+b490afdd | RLSA-2020:4059 |
| Rocky Linux:8 | sgabios | 1:0.20170427git-3.module+el8.4.0+534+4680a14e | RLSA-2020:4059 |
| Rocky Linux:8 | sgabios | 1:0.20170427git-3.module+el8.7.0+1084+97b81f61 | RLSA-2020:4059 |
| Rocky Linux:8 | sgabios | 1:0.20170427git-3.module+el8.6.0+847+b490afdd | RLSA-2020:4059 |
Affected products (as reported)
Weakness: CWE-125
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1869201 x_refsource_MISC
- https://www.openwall.com/lists/oss-security/2020/08/24/3 x_refsource_MISC
- https://www.openwall.com/lists/oss-security/2020/08/24/2 x_refsource_MISC
- DSA-4760 vendor-advisory, x_refsource_DEBIAN
- FEDORA-2020-3689b67b53 vendor-advisory, x_refsource_FEDORA
- [debian-lts-announce] 20200913 [SECURITY] [DLA 2373-1] qemu security update mailing-list, x_refsource_MLIST
- FEDORA-2020-eeb29955ed vendor-advisory, x_refsource_FEDORA
- USN-4511-1 vendor-advisory, x_refsource_UBUNTU
- https://security.netapp.com/advisory/ntap-20200924-0006/ x_refsource_CONFIRM
- GLSA-202009-14 vendor-advisory, x_refsource_GENTOO
- openSUSE-SU-2020:1664 vendor-advisory, x_refsource_SUSE
- GLSA-202011-09 vendor-advisory, x_refsource_GENTOO