Описание
Singularity (an open source container platform) from version 3.1.1 through 3.6.3 has a vulnerability. Due to insecure handling of path traversal and the lack of path sanitization within unsquashfs, it is possible to overwrite/create any files on the host filesystem during the extraction with a crafted squashfs filesystem. The extraction occurs automatically for unprivileged (either installation or with allow setuid = no) run of Singularity when a user attempt to run an image which is a local SIF image or a single file containing a squashfs filesystem and is coming from remote sources library:// or shub://. Image build is also impacted in a more serious way as it can be used by a root user, allowing an attacker to overwrite/create files leading to a system compromise, so far bootstrap methods library, shub and localimage are triggering the squashfs extraction. This issue is addressed in Singularity 3.6.4. All users are advised to upgrade to 3.6.4 especially if they use ...
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | not-affected | code not present |
| devel | DNE | |
| esm-apps/bionic | not-affected | code not present |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| precise/esm | DNE | |
| trusty | ignored | end of standard support |
| trusty/esm | DNE | |
| upstream | needs-triage |
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Ссылки на источники
EPSS
5.8 Medium
CVSS2
8.2 High
CVSS3
Связанные уязвимости
Singularity (an open source container platform) from version 3.1.1 through 3.6.3 has a vulnerability. Due to insecure handling of path traversal and the lack of path sanitization within `unsquashfs`, it is possible to overwrite/create any files on the host filesystem during the extraction with a crafted squashfs filesystem. The extraction occurs automatically for unprivileged (either installation or with `allow setuid = no`) run of Singularity when a user attempt to run an image which is a local SIF image or a single file containing a squashfs filesystem and is coming from remote sources `library://` or `shub://`. Image build is also impacted in a more serious way as it can be used by a root user, allowing an attacker to overwrite/create files leading to a system compromise, so far bootstrap methods `library`, `shub` and `localimage` are triggering the squashfs extraction. This issue is addressed in Singularity 3.6.4. All users are advised to upgrade to 3.6.4 especially if they use Sin
Singularity (an open source container platform) from version 3.1.1 thr ...
Path traversal and files overwrite with unsquashfs in singularity
EPSS
5.8 Medium
CVSS2
8.2 High
CVSS3