CVE-2021-23192 Affecting libwbclient package, versions <0:4.14.5-7.el8_5


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.16% (53rd percentile)

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  • Snyk IDSNYK-CENTOS8-LIBWBCLIENT-1960478
  • published11 Nov 2021
  • disclosed9 Nov 2021

Introduced: 9 Nov 2021

CVE-2021-23192  (opens in a new tab)

How to fix?

Upgrade Centos:8 libwbclient to version 0:4.14.5-7.el8_5 or higher.

NVD Description

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

A flaw was found in the way samba implemented DCE/RPC. If a client to a Samba server sent a very large DCE/RPC request, and chose to fragment it, an attacker could replace later fragments with their own data, bypassing the signature requirements.

CVSS Scores

version 3.1