Improper Input Validation Affecting openssh package, versions <0:8.0p1-3.el8


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.32% (71st percentile)

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  • Snyk IDSNYK-RHEL8-OPENSSH-1408035
  • published26 Jul 2021
  • disclosed16 Nov 2018

Introduced: 16 Nov 2018

CVE-2018-20685  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade RHEL:8 openssh to version 0:8.0p1-3.el8 or higher.
This issue was patched in RHSA-2019:3702.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssh package and not the openssh package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

In OpenSSH 7.9, scp.c in the scp client allows remote SSH servers to bypass intended access restrictions via the filename of . or an empty filename. The impact is modifying the permissions of the target directory on the client side.

CVSS Scores

version 3.1