Ubuntu.comUB:CVE-2019-18837CVE-2019-18837
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
8.6 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
0.002 Low
EPSS
Percentile
61.3%
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
github.com/containers/crun/pull/173
github.com/containers/crun/releases/tag/0.10.5
launchpad.net/bugs/cve/CVE-2019-18837
lists.fedoraproject.org/archives/list/[email protected]/message/DTA5SJUAKQUK6HRY2CZVJUIZP5BO3EOG/
lists.fedoraproject.org/archives/list/[email protected]/message/ITB2UNEGHXZUR3ATYHWPSK5LJB36N7AP/
nvd.nist.gov/vuln/detail/CVE-2019-18837
security-tracker.debian.org/tracker/CVE-2019-18837
www.cve.org/CVERecord?id=CVE-2019-18837
Related
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
8.6 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
0.002 Low
EPSS
Percentile
61.3%