| Title | QEMU における整数オーバーフローの脆弱性 |
|---|---|
| Summary | QEMU には、整数オーバーフローの脆弱性が存在します。 |
| Possible impacts | サービス運用妨害 (DoS) 状態にされる可能性があります。 |
| Solution | ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。 |
| Publication Date | Jan. 29, 2021, midnight |
| Registration Date | Nov. 15, 2021, 9:55 a.m. |
| Last Update | Nov. 15, 2021, 9:55 a.m. |
| CVSS3.0 : 低 | |
| Score | 3.2 |
|---|---|
| Vector | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L |
| CVSS2.0 : 注意 | |
| Score | 2.1 |
|---|---|
| Vector | AV:L/AC:L/Au:N/C:N/I:N/A:P |
| Fedora Project |
| Fedora |
| Fabrice Bellard |
| QEMU 5.2.0 まで |
| No | Changed Details | Date of change |
|---|---|---|
| 1 | [2021年11月15日] 掲載 |
Nov. 15, 2021, 9:55 a.m. |
| Summary | An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario. |
|---|---|
| Publication Date | Feb. 26, 2021, 5:15 a.m. |
| Registration Date | Feb. 26, 2021, 10:01 a.m. |
| Last Update | Nov. 21, 2024, 2:46 p.m. |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* | 5.2.0 | ||||
| Configuration2 | or higher | or less | more than | less than | |
| cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | |||||
| Configuration3 | or higher | or less | more than | less than | |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | |||||