CVE-2019-18837

HIGH

8.6

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.

CVE Details

CVSS v3.1 Score8.6

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published11/13/2019

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

crun_project:crunfedoraproject:fedora

Weaknesses (CWE)

CWE-59

References

https://github.com/containers/crun/pull/173(trellixpsirt@trellix.com)

https://github.com/containers/crun/releases/tag/0.10.5(trellixpsirt@trellix.com)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DTA5SJUAKQUK6HRY2CZVJUIZP5BO3EOG/(trellixpsirt@trellix.com)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITB2UNEGHXZUR3ATYHWPSK5LJB36N7AP/(trellixpsirt@trellix.com)

https://github.com/containers/crun/pull/173(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/containers/crun/releases/tag/0.10.5(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DTA5SJUAKQUK6HRY2CZVJUIZP5BO3EOG/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITB2UNEGHXZUR3ATYHWPSK5LJB36N7AP/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.