发布时间: 2021年11月12日
修改时间: 2024年10月31日
squashfs_opendir in unsquash-2.c in Squashfs-Tools 4.5 allows Directory Traversal, a different vulnerability than CVE-2021-40153. A squashfs filesystem that has been crafted to include a symbolic link and then contents under the same filename in a filesystem can cause unsquashfs to first create the symbolic link pointing outside the expected directory, and then the subsequent write operation will cause the unsquashfs process to write through the symbolic link elsewhere in the filesystem.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | None | None |
| Attack Vector | Network | Network |
| CVSS评分 | 8.1 | 8.1 |
| Attack Complexity | Low | Low |
| Privileges Required | None | None |
| Scope | Unchanged | Unchanged |
| Integrity | High | High |
| User Interaction | Required | Required |
| Availability | High | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2021-1424 | squashfs-tools security update | 2021年11月12日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-4A | squashfs-tools | Fixed |
