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CVE-2019-11251

Published: 3 February 2020

The Kubernetes kubectl cp command in versions 1.1-1.12, and versions prior to 1.13.11, 1.14.7, and 1.15.4 allows a combination of two symlinks provided by tar output of a malicious container to place a file outside of the destination directory specified in the kubectl cp invocation. This could be used to allow an attacker to place a nefarious file using a symlink, outside of the destination tree.

Notes

AuthorNote
leosilva
kubernates is in fact a kubernetes installer
that calls snap, not the package it self.

Priority

Medium

Cvss 3 Severity Score

5.7

Score breakdown

Status

Package Release Status
kubernetes
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needs triage

trusty Does not exist

groovy Ignored
(end of life)
hirsute Ignored
(end of life)
jammy Needs triage

kinetic Ignored
(end of life, was needs-triage)
impish Ignored
(end of life)
upstream Not vulnerable
(debian: Vulnerable code not present)
xenial Does not exist

mantic Needs triage

lunar Ignored
(end of life, was needs-triage)

Severity score breakdown

Parameter Value
Base score 5.7
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N