| Name | CVE-2020-17380 |
| Description | A heap-based buffer overflow was found in QEMU through 5.0.0 in the SDHCI device emulation support. It could occur while doing a multi block SDMA transfer via the sdhci_sdma_transfer_multi_blocks() routine in hw/sd/sdhci.c. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition, or potentially execute arbitrary code with 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-2623-1, DLA-3362-1 |
| Debian Bugs | 970937 |
Vulnerable and fixed packages
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 | 1:3.1+dfsg-8+deb10u8 | vulnerable |
| buster (security) | 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+deb12u5 | fixed |
| trixie | 1:8.2.1+ds-2 | fixed |
| sid | 1:8.2.2+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+deb8u20 | | | |
| qemu | source | stretch | 1:2.8+dfsg-6+deb9u14 | | DLA-2623-1 | |
| qemu | source | buster | 1:3.1+dfsg-8+deb10u10 | | DLA-3362-1 | |
| qemu | source | (unstable) | 1:5.2+dfsg-10 | | | 970937 |
Notes
https://bugzilla.redhat.com/show_bug.cgi?id=1862167
https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg01175.html
https://git.qemu.org/?p=qemu.git;a=commitdiff;h=dfba99f17feb6d4a129da19d38df1bcd8579d1c3
confusion with CVE-2020-25085, see RH bug; re-submitted as CVE-2021-3409