Out-of-bounds Write Affecting samba-krb5-printing package, versions <0:4.14.5-9.el8_5


Severity

Recommended
0.0
critical
0
10

Based on CentOS security rating

    Threat Intelligence

    EPSS
    18.05% (97th percentile)

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  • Snyk ID SNYK-CENTOS8-SAMBAKRB5PRINTING-2389473
  • published 1 Feb 2022
  • disclosed 31 Jan 2022

How to fix?

Upgrade Centos:8 samba-krb5-printing to version 0:4.14.5-9.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.

The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver." Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.

CVSS Scores

version 3.1
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NVD

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

9.9 critical
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SUSE

9.9 critical