| Name | CVE-2020-14364 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2373-1, DSA-4760-1, ELA-283-1 |
| Debian Bugs | 968947 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| qemu (PTS) | jessie, jessie (lts) | 1:2.1+dfsg-12+deb8u23 | fixed |
| stretch (security) | 1:2.8+dfsg-6+deb9u17 | fixed | |
| stretch (lts), stretch | 1:2.8+dfsg-6+deb9u19 | fixed | |
| buster (security), buster, buster (lts) | 1:3.1+dfsg-8+deb10u12 | fixed | |
| bullseye | 1:5.2+dfsg-11+deb11u3 | fixed | |
| bullseye (security) | 1:5.2+dfsg-11+deb11u2 | fixed | |
| bookworm | 1:7.2+dfsg-7+deb12u7 | fixed | |
| sid, trixie | 1:9.2.0+ds-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 | jessie | 1:2.1+dfsg-12+deb8u17 | ELA-283-1 | ||
| qemu | source | stretch | 1:2.8+dfsg-6+deb9u11 | DLA-2373-1 | ||
| qemu | source | buster | 1:3.1+dfsg-8+deb10u8 | DSA-4760-1 | ||
| qemu | source | (unstable) | 1:5.1+dfsg-4 | 968947 |
https://xenbits.xen.org/xsa/advisory-335.html
https://www.openwall.com/lists/oss-security/2020/08/24/3
https://git.qemu.org/?p=qemu.git;a=commitdiff;h=b946434f2659a182afc17e155be6791ebfb302eb