Use of Externally-Controlled Format String Affecting exim4 package, versions <4.75-3


0.0
high

Snyk CVSS

    Attack Complexity Low
NVD  high

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  • Snyk ID SNYK-DEBIAN12-EXIM4-1544994
  • published 5 Oct 2011
  • disclosed 5 Oct 2011

How to fix?

Upgrade Debian:12 exim4 to version 4.75-3 or higher.

NVD Description

Note: Versions mentioned in the description apply to the upstream exim4 package. See How to fix? for Debian:12 relevant versions.

Format string vulnerability in the dkim_exim_verify_finish function in src/dkim.c in Exim before 4.76 might allow remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via format string specifiers in data used in DKIM logging, as demonstrated by an identity field containing a % (percent) character.