PT-2020-6734 · Qemu+2 · Qemu+2

Published 2020-10-15 · Updated 2022-05-13 · CVE-2020-27661

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions QEMU (affected versions not specified)

Description A divide-by-zero issue was found in the dwc2 handle packet function in the hw/usb/hcd-dwc2.c file of the hcd-dwc2 USB host controller emulation. This issue could be exploited by a malicious guest to crash the QEMU process on the host, resulting in a denial of service.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

ALT-PU-2020-3527

ALT-PU-2021-1880

ALT-PU-2021-1964

BDU:2022-05834

CVE-2020-27661

Affected Products

Alt Linux

Astra Linux

Qemu

References · 19

• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2022-0926SE47 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2021-9568.html · Vendor Advisory
• https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg04263.html · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-27661 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2022-0819SE17 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1890653 · Patch
• https://bdu.fstec.ru/vul/2022-05834 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-27661 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2020-27661 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2021-9335.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-27661 · Vendor Advisory
• https://git.qemu.org/?p=qemu.git;a=commit;h=bea2a9e3e00b275dc40cfa09c760c715b8753e03 · Note
• https://t.me/cvenotify/17926 · Telegram Post
• https://t.me/cvenotify/15418 · Telegram Post
• https://xn--80ahaefyxhn.xn--j1afgaq.xn--p1ai/bin/view/%D0%9E%D0%A1%D0%BD%D0%BE%D0%B2%D0%B0/%D0%9E%D0%B1%D0%BD%D0%BE%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F/2.5 · Note