Out-of-bounds Read Affecting pyldb package, versions <0:1.5.4-2.17.amzn1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
4.33% (90th percentile)

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  • Snyk IDSNYK-AMZN201803-PYLDB-1725588
  • published27 Sept 2021
  • disclosed12 May 2021

Introduced: 12 May 2021

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

How to fix?

Upgrade Amazon-Linux:2018.03 pyldb to version 0:1.5.4-2.17.amzn1 or higher.
This issue was patched in ALAS-2021-1494.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pyldb package and not the pyldb package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 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 Base Scores

version 3.1