CVE-2019-18837

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2019-18837
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-18837.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2019-18837
Downstream
Published
2019-11-13T20:15:10.940Z
Modified
2026-03-14T14:39:04.730382Z
Severity
  • 8.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Git / github.com/containers/crun

Affected ranges

Type
GIT
Repo
https://github.com/containers/crun
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
91db0f4a76db33d6221e18ae0560cd715b2e3273
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.10.5"
        }
    ]
}

Affected versions

0.*
0.10
0.10.1
0.10.2
0.10.3
0.10.4
0.4
0.5
0.6
0.7
0.8
0.9
0.9.1
v0.*
v0.2
v0.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-18837.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "30"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "31"
            }
        ]
    }
]