PT-2018-6719 · Openrc · Openrc Opentmpfiles

Orlitzky · Published 2018-02-14 · Updated 2018-03-09 · CVE-2017-18188

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions: OpenRC opentmpfiles versions 0.1.3 and earlier

Description: The issue allows local users to obtain ownership of arbitrary files by creating a hard link inside a directory on which "chown -R" will be run, when the fs.protected hardlinks sysctl is turned off.

Recommendations: For OpenRC opentmpfiles versions 0.1.3 and earlier, as a temporary workaround, consider restricting the use of the "chown -R" command on directories that may contain hard links until a patch is available.

Fix

Link Following

Weakness Enumeration

CWE-59

Related Identifiers

CVE-2017-18188

Affected Products

Openrc Opentmpfiles

References · 6

• https://cve.org/CVERecord?id=CVE-2017-18188 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2017-18188 · Security Note
• https://ubuntu.com/security/CVE-2017-18188 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-18188 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-18188 · Vendor Advisory
• https://github.com/OpenRC/opentmpfiles/issues/3 · Note