このページは Debian 向けの修正状況です。脆弱性そのものの説明は CVE 本体のページにあります。
CVE-2021-3507 の詳細 →
DEBIAN-CVE-2021-3507
A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrl_transfer_handler() in hw/block/...
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory.
出典: OSV.dev (Open Source Vulnerabilities) OSV
影響パッケージ
Debian:12
qemu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:7.1+dfsg-1"}]}]
Debian:13
qemu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:7.1+dfsg-1"}]}]
Debian:14
qemu
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:7.1+dfsg-1"}]}]
参照URL
- advisory security-tracker.debian.org