| Title | HHVM における境界外書き込みに関する脆弱性 |
|---|---|
| Summary | HHVM には、境界外書き込みに関する脆弱性が存在します。 |
| Possible impacts | 情報を取得される、情報を改ざんされる、およびサービス運用妨害 (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 | Feb. 25, 2021, midnight |
| Registration Date | Nov. 22, 2021, 12:19 p.m. |
| Last Update | Nov. 22, 2021, 12:19 p.m. |
| CVSS3.0 : 緊急 | |
| Score | 9.8 |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CVSS2.0 : 危険 | |
| Score | 7.5 |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| HipHop Virtual Machine (HHVM) 4.56.3 未満 |
| HipHop Virtual Machine (HHVM) 4.57.0 から 4.80.1 |
| HipHop Virtual Machine (HHVM) 4.81.0 から 4.93.1 |
| HipHop Virtual Machine (HHVM) 4.94.0 |
| HipHop Virtual Machine (HHVM) 4.95.0 |
| HipHop Virtual Machine (HHVM) 4.96.0 |
| HipHop Virtual Machine (HHVM) 4.97.0 |
| HipHop Virtual Machine (HHVM) 4.98.0 |
| No | Changed Details | Date of change |
|---|---|---|
| 1 | [2021年11月22日] 掲載 |
Nov. 22, 2021, 12:19 p.m. |
| Summary | xbuf_format_converter, used as part of exif_read_data, was appending a terminating null character to the generated string, but was not using its standard append char function. As a result, if the buffer was full, it would result in an out-of-bounds write. This issue affects HHVM versions prior to 4.56.3, all versions between 4.57.0 and 4.80.1, all versions between 4.81.0 and 4.93.1, and versions 4.94.0, 4.95.0, 4.96.0, 4.97.0, 4.98.0. |
|---|---|
| Publication Date | March 11, 2021, 1:15 a.m. |
| Registration Date | March 11, 2021, 10 a.m. |
| Last Update | Nov. 21, 2024, 2:11 p.m. |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:a:facebook:hhvm:4.95.0:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:facebook:hhvm:4.96.0:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:facebook:hhvm:4.97.0:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:facebook:hhvm:4.98.0:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:facebook:hhvm:4.94.0:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* | 4.81.0 | 4.93.2 | |||
| cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* | 4.57.0 | 4.80.2 | |||
| cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* | 4.56.3 | ||||