Out-of-bounds Write Affecting exim4 package, versions <4.94.2-1


0.0
high

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.04% (11th percentile)
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NVD
7.8 high

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  • Snyk ID SNYK-DEBIAN11-EXIM4-1279401
  • published 5 May 2021
  • disclosed 6 May 2021

How to fix?

Upgrade Debian:11 exim4 to version 4.94.2-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream exim4 package and not the exim4 package as distributed by Debian. See How to fix? for Debian:11 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.