Out-of-bounds Read Affecting samba package, versions <2:4.13.13+dfsg-1


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.61% (79th percentile)

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  • Snyk IDSNYK-DEBIAN12-SAMBA-1559655
  • published25 Mar 2021
  • disclosed12 May 2021

Introduced: 25 Mar 2021

CVE-2021-20277  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Debian:12 samba to version 2:4.13.13+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba package and not the samba package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

A flaw was found in Samba's libldb. Multiple, consecutive leading spaces in an LDAP attribute can lead to an out-of-bounds memory write, leading to a crash of the LDAP server process handling the request. The highest threat from this vulnerability is to system availability.

CVSS Scores

version 3.1