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

0.0
high

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    EPSS 9.25% (95th percentile)
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NVD
7.3 high

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  • Snyk ID SNYK-DEBIANUNSTABLE-EXIM4-382946
  • published 5 Oct 2011
  • disclosed 5 Oct 2011
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Introduced: 5 Oct 2011

CVE-2011-1764 Open this link in a new tab
CWE-134 Open this link in a new tab

How to fix?

Upgrade Debian:unstable exim4 to version 4.75-3 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:unstable relevant fixed versions and status.

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.