CVE-2011-1764

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    CVE-2011-1764

    Published: 5 Oct 2011Last Modified: 10 Apr 2026

    Summary:

    Details: 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.

    References: http://secunia.com/advisories/51155, http://www.debian.org/security/2011/dsa-2232, http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=624670, http://bugs.exim.org/show_bug.cgi?id=1106, http://git.exim.org/exim.git/commit/337e3505b0e6cd4309db6bf6062b33fa56e06cf8, https://bugzilla.redhat.com/show_bug.cgi?id=702474, http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html

    Affected packages

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High