| Name | CVE-2024-26327 |
| Description | An issue was discovered in QEMU 7.1.0 through 8.2.1. register_vfs in hw/pci/pcie_sriov.c mishandles the situation where a guest writes NumVFs greater than TotalVFs, leading to a buffer overflow in VF implementations. |
| 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 | 1068819 |
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 | fixed |
| 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 | vulnerable |
| trixie | 1:8.2.1+ds-2 | vulnerable |
| sid | 1:8.2.3+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 | (not affected) | | | |
| qemu | source | stretch | (not affected) | | | |
| qemu | source | buster | (not affected) | | | |
| qemu | source | bullseye | (not affected) | | | |
| qemu | source | (unstable) | 1:8.2.3+ds-1 | | | 1068819 |
Notes
[bookworm] - qemu <no-dsa> (Minor issue)
[bullseye] - qemu <not-affected> (Vulnerable code introduced later)
[buster] - qemu <not-affected> (Vulnerable code introduced later)
Introduced by: https://gitlab.com/qemu-project/qemu/-/commit/7c0fa8dff811b5648964630a1334c3bb97e1e1c6 (v7.0.0-rc0)
https://gitlab.com/qemu-project/qemu/-/commit/6081b4243cd64dff1b2cf5b0c215c71e9d7e753b (v9.0.0-rc0)
https://gitlab.com/qemu-project/qemu/-/commit/313e746958967a4b941ad4bbb80726727318edfa (v8.2.3)
https://lore.kernel.org/all/20240214-reuse-v4-5-89ad093a07f4%40daynix.com/
[stretch] - qemu <not-affected> (Vulnerable code introduced later)
[jessie] - qemu <not-affected> (Vulnerable code introduced later)