high8.6
CVE-2019-18837
An issue was discovered in crun before 0.10.5.
Impact
An issue was discovered in crun before 0.10.5. With a crafted image, it doesn't correctly check whether a target is a symlink, resulting in access to files outside of the container. This occurs in libcrun/linux.c and libcrun/chroot_realpath.c.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Crun Project | Crun | before 0.10.5 |
| Fedoraproject | Fedora | Versions 30, 31 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/containers/crun/pull/173
- https://github.com/containers/crun/releases/tag/0.10.5
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DTA5SJUAKQUK6HRY2CZVJUIZP5BO3EOG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITB2UNEGHXZUR3ATYHWPSK5LJB36N7AP/
- https://github.com/containers/crun/pull/173
- https://github.com/containers/crun/releases/tag/0.10.5
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DTA5SJUAKQUK6HRY2CZVJUIZP5BO3EOG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITB2UNEGHXZUR3ATYHWPSK5LJB36N7AP/