Vulnerability · Published Jun 2, 2021 · Assigned by mitre
CVE-2020-27661
Medium 6.5
In plain English
A medium-severity security flaw in the qemu package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)0.3%top 75.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A divide-by-zero issue was found in dwc2_handle_packet in hw/usb/hcd-dwc2.c in the hcd-dwc2 USB host controller emulation of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | qemu | 5.2.0-r0 | ALPINE-CVE-2020-27661 |
| Alpine:v3.21 | qemu | 5.2.0-r0 | ALPINE-CVE-2020-27661 |
| Alpine:v3.22 | qemu | 5.2.0-r0 | ALPINE-CVE-2020-27661 |
| Alpine:v3.23 | qemu | 5.2.0-r0 | ALPINE-CVE-2020-27661 |
| Alpine:v3.24 | qemu | 5.2.0-r0 | ALPINE-CVE-2020-27661 |
| Debian:12 | qemu | 1:5.2+dfsg-1 | DEBIAN-CVE-2020-27661 |
| Debian:13 | qemu | 1:5.2+dfsg-1 | DEBIAN-CVE-2020-27661 |
| Debian:14 | qemu | 1:5.2+dfsg-1 | DEBIAN-CVE-2020-27661 |
Affected products (as reported)
References
- https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg04263.html x_refsource_MISC
- https://bugzilla.redhat.com/show_bug.cgi?id=1890653 x_refsource_MISC
- https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1770368.html x_refsource_MISC
- https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=bea2a9e3e00b275dc40cfa09c760c715b8753e03 x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20210720-0010/ x_refsource_CONFIRM