| Name | CVE-2022-3872 |
| Description | An off-by-one read/write issue was found in the SDHCI device of QEMU. It occurs when reading/writing the Buffer Data Port Register in sdhci_read_dataport and sdhci_write_dataport, respectively, if data_count == block_size. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1024022 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| qemu (PTS) | bullseye | 1:5.2+dfsg-11+deb11u3 | vulnerable |
| bullseye (security) | 1:5.2+dfsg-11+deb11u2 | vulnerable |
| bookworm | 1:7.2+dfsg-7+deb12u7 | vulnerable |
| sid, trixie | 1:9.2.0+ds-2 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| qemu | source | (unstable) | (unfixed) | | | 1024022 |
Notes
[bookworm] - qemu <postponed> (Minor issue, revisit when fixed upstream)
[bullseye] - qemu <postponed> (Minor issue, revisit when fixed upstream)
[buster] - qemu <postponed> (Minor issue, DoS, waiting for sanctioned patch)
https://bugzilla.redhat.com/show_bug.cgi?id=2140567
patch proposal 1: https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg01068.html
https://patchew.org/QEMU/20221107103510.34588-1-mcascell@redhat.com/
patch proposal 2: https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg01161.html
https://patchew.org/QEMU/20221107221236.47841-1-philmd@linaro.org/
No sanctioned upstream patch as of 2024-08-06