Out-of-bounds Write Affecting exim-pgsql package, versions <0:4.92-1.33.amzn1


Severity

Recommended
critical

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-AMZN201803-EXIMPGSQL-2974968
  • published5 Aug 2022
  • disclosed6 May 2021

Introduced: 6 May 2021

CVE-2020-28011  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 exim-pgsql to version 0:4.92-1.33.amzn1 or higher.
This issue was patched in ALAS-2022-1622.

NVD Description

Note: Versions mentioned in the description apply only to the upstream exim-pgsql package and not the exim-pgsql package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

Exim 4 before 4.94.2 allows Heap-based Buffer Overflow in queue_run via two sender options: -R and -S. This may cause privilege escalation from exim to root.

CVSS Scores

version 3.1