CVEvulnerability
CVE-2019-18837
8.6 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-11-13
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-59
Description
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 configurations
• crun project crun (< 0.10.5)
• fedoraproject fedora 30
• fedoraproject fedora 31
Related
Weakness · CWE (1)
- CWE-59 Improper Link Resolution Before File Access weakness
References
- https://github.com/containers/crun/pull/173 github.com
- https://github.com/containers/crun/releases/tag/0.10.5 github.com
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DTA5SJUAKQUK6HRY2CZVJUIZP5BO3EOG/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITB2UNEGHXZUR3ATYHWPSK5LJB36N7AP/ lists.fedoraproject.org
- https://github.com/containers/crun/pull/173 github.com
- https://github.com/containers/crun/releases/tag/0.10.5 github.com
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DTA5SJUAKQUK6HRY2CZVJUIZP5BO3EOG/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITB2UNEGHXZUR3ATYHWPSK5LJB36N7AP/ lists.fedoraproject.org