CVE-2021-23192 Affecting samba-krb5-printing package, versions <0:4.14.5-7.el8_5


Severity

Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.1% (42nd percentile)

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  • Snyk ID SNYK-CENTOS8-SAMBAKRB5PRINTING-1960566
  • published 11 Nov 2021
  • disclosed 9 Nov 2021

How to fix?

Upgrade Centos:8 samba-krb5-printing to version 0:4.14.5-7.el8_5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba-krb5-printing package and not the samba-krb5-printing 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
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NVD

7.5 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    High
  • Availability (A)
    None
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Red Hat

4.8 medium
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SUSE

4.8 medium