| Name | CVE-2020-14394 |
| Description | An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 979677 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| qemu (PTS) | buster | 1:3.1+dfsg-8+deb10u8 | vulnerable |
| buster (security) | 1:3.1+dfsg-8+deb10u9 | vulnerable |
| bullseye (security), bullseye | 1:5.2+dfsg-11+deb11u2 | vulnerable |
| bookworm, sid | 1:7.1+dfsg-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| qemu | source | (unstable) | 1:7.1+dfsg-1 | | | 979677 |
Notes
[bullseye] - qemu <postponed> (Minor issue)
[buster] - qemu <postponed> (Minor issue, privileged local DoS, low CVSS, fix along with next DLA)
https://bugzilla.redhat.com/show_bug.cgi?id=1908004
https://gitlab.com/qemu-project/qemu/-/issues/646
Fixed by: https://gitlab.com/qemu-project/qemu/-/commit/effaf5a240e03020f4ae953e10b764622c3e87cc (v7.1.0-rc3)