Out-of-bounds Read Affecting samba-krb5-printing package, versions <0:4.13.3-5.el8_4


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.42% (75th percentile)

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  • Snyk ID SNYK-CENTOS8-SAMBAKRB5PRINTING-2125398
  • published 26 Jul 2021
  • disclosed 29 Apr 2021

How to fix?

Upgrade Centos:8 samba-krb5-printing to version 0:4.13.3-5.el8_4 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 samba. The Samba smbd file server must map Windows group identities (SIDs) into unix group ids (gids). The code that performs this had a flaw that could allow it to read data beyond the end of the array in the case where a negative cache entry had been added to the mapping cache. This could cause the calling code to return those values into the process token that stores the group membership for a user. The highest threat from this vulnerability is to data confidentiality and integrity.

CVSS Scores

version 3.1
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NVD

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

6.8 medium
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SUSE

7.1 high