CVE-2010-4344

    Dashboard / Vulnerabilities / CVE-2010-4344

    CVE-2010-4344

    Published: 14 Dec 2010Last Modified: 10 Apr 2026

    Summary:

    Details: Heap-based buffer overflow in the string_vformat function in string.c in Exim before 4.70 allows remote attackers to execute arbitrary code via an SMTP session that includes two MAIL commands in conjunction with a large message containing crafted headers, leading to improper rejection logging.

    References: http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00003.html, http://openwall.com/lists/oss-security/2010/12/10/1, http://secunia.com/advisories/40019, http://secunia.com/advisories/42576, http://secunia.com/advisories/42586, http://secunia.com/advisories/42587, http://secunia.com/advisories/42589, http://www.debian.org/security/2010/dsa-2131, http://www.kb.cert.org/vuls/id/682457, http://www.metasploit.com/modules/exploit/unix/smtp/exim4_string_format, http://www.securityfocus.com/archive/1/515172/100/0/threaded, http://www.securityfocus.com/bid/45308, http://www.securitytracker.com/id?1024858, http://www.ubuntu.com/usn/USN-1032-1, http://www.vupen.com/english/advisories/2010/3171, http://www.vupen.com/english/advisories/2010/3172, http://www.vupen.com/english/advisories/2010/3181, http://www.vupen.com/english/advisories/2010/3186, http://www.vupen.com/english/advisories/2010/3204, http://www.vupen.com/english/advisories/2010/3246, http://www.vupen.com/english/advisories/2010/3317, http://atmail.com/blog/2010/atmail-6204-now-available/, http://git.exim.org/exim.git/commit/24c929a27415c7cfc7126c47e4cad39acf3efa6b, http://lists.exim.org/lurker/message/20101210.164935.385e04d0.en.html, http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00003.html, http://openwall.com/lists/oss-security/2010/12/10/1, http://www.debian.org/security/2010/dsa-2131, http://www.exim.org/lurker/message/20101207.215955.bb32d4f2.en.html, http://www.openwall.com/lists/oss-security/2021/05/04/7, http://www.exim.org/lurker/message/20101207.215955.bb32d4f2.en.html, http://www.openwall.com/lists/oss-security/2021/05/04/7, http://www.osvdb.org/69685, https://bugzilla.redhat.com/show_bug.cgi?id=661756, http://bugs.exim.org/show_bug.cgi?id=787, http://git.exim.org/exim.git/commit/24c929a27415c7cfc7126c47e4cad39acf3efa6b, http://lists.exim.org/lurker/message/20101210.164935.385e04d0.en.html, http://www.osvdb.org/69685, http://bugs.exim.org/show_bug.cgi?id=787, https://bugzilla.redhat.com/show_bug.cgi?id=661756, ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.70, http://www.cpanel.net/2010/12/exim-remote-memory-corruption-vulnerability-notification-cve-2010-4344.html, http://www.kb.cert.org/vuls/id/682457, http://www.osvdb.org/69685, http://www.redhat.com/support/errata/RHSA-2010-0970.html, http://www.securityfocus.com/archive/1/515172/100/0/threaded, http://www.securityfocus.com/bid/45308, http://www.securitytracker.com/id?1024858, http://www.theregister.co.uk/2010/12/11/exim_code_execution_peril/

    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