Out-of-bounds Write Affecting samba-winbind-modules-debuginfo package, versions <2:4.15.5-0.amzn2022


Severity

Recommended
0.0
critical
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
18.05% (97th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-AMZN2022-SAMBAWINBINDMODULESDEBUGINFO-2996150
  • published29 Aug 2022
  • disclosed21 Feb 2022

Introduced: 21 Feb 2022

CVE-2021-44142  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2022 samba-winbind-modules-debuginfo to version 2:4.15.5-0.amzn2022 or higher.
This issue was patched in ALAS2022-2022-022.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba-winbind-modules-debuginfo package and not the samba-winbind-modules-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2022 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