← Back

CVE-2019-18837

nvd nist
Published: Nov 13, 2019Modified: Nov 21, 2024

JSON object

Loading...
8.6
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Exploitability: 3.9 / Impact: 4.0
Source: NVD

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 (3)

Crun Project
1 product
Crun
Fedoraproject
1 product
Fedora
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Crun
Before 0.10.5
Configuration B
2 vulnerable
Vulnerable SoftwareAffected Versions
Fedoraproject
Fedora
Version 30
Fedora
Version 31

Related CWEs

CWE-59
Improper Link Resolution Before File Access ('Link Following')
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

References (8)

Source: trellixpsirt@trellix.com
Source: trellixpsirt@trellix.com
Source: trellixpsirt@trellix.com
Source: trellixpsirt@trellix.com
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.