Vulnerability Monitor

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CVE-2010-4344

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.

Published

2010-12-14T16:00:04.163

Last Modified

2025-10-22T01:15:39.497

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

8.6

Impact Score

10.0

Weaknesses

Type: Primary
CWE-787
Type: Secondary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	exim	exim	< 4.70	Yes
Operating System	opensuse	opensuse	11.1	Yes
Operating System	opensuse	opensuse	11.2	Yes
Operating System	opensuse	opensuse	11.3	Yes
Operating System	debian	debian_linux	5.0	Yes
Operating System	canonical	ubuntu_linux	6.06	Yes
Operating System	canonical	ubuntu_linux	8.04	Yes
Operating System	canonical	ubuntu_linux	9.10	Yes

References

ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.70 Broken Link ([email protected])
http://atmail.com/blog/2010/atmail-6204-now-available/ Broken Link ([email protected])
http://bugs.exim.org/show_bug.cgi?id=787 Issue Tracking, Patch ([email protected])
http://git.exim.org/exim.git/commit/24c929a27415c7cfc7126c47e4cad39acf3efa6b Mailing List, Patch ([email protected])
http://lists.exim.org/lurker/message/20101210.164935.385e04d0.en.html Mailing List, Patch ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00003.html Mailing List, Third Party Advisory ([email protected])
http://openwall.com/lists/oss-security/2010/12/10/1 Mailing List, Third Party Advisory ([email protected])
http://secunia.com/advisories/40019 Broken Link, Vendor Advisory ([email protected])
http://secunia.com/advisories/42576 Broken Link, Vendor Advisory ([email protected])
http://secunia.com/advisories/42586 Broken Link, Vendor Advisory ([email protected])
http://secunia.com/advisories/42587 Broken Link, Vendor Advisory ([email protected])
http://secunia.com/advisories/42589 Broken Link, Vendor Advisory ([email protected])
http://www.cpanel.net/2010/12/exim-remote-memory-corruption-vulnerability-notification-cve-2010-4344.html Broken Link ([email protected])
http://www.debian.org/security/2010/dsa-2131 Mailing List, Third Party Advisory ([email protected])
http://www.exim.org/lurker/message/20101207.215955.bb32d4f2.en.html Exploit, Mailing List ([email protected])
http://www.kb.cert.org/vuls/id/682457 Third Party Advisory, US Government Resource ([email protected])
http://www.metasploit.com/modules/exploit/unix/smtp/exim4_string_format Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2021/05/04/7 Exploit, Mailing List ([email protected])
http://www.osvdb.org/69685 Broken Link, Exploit, Patch ([email protected])
http://www.redhat.com/support/errata/RHSA-2010-0970.html Broken Link ([email protected])
http://www.securityfocus.com/archive/1/515172/100/0/threaded Broken Link, Third Party Advisory, VDB Entry ([email protected])
http://www.securityfocus.com/bid/45308 Broken Link, Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id?1024858 Broken Link, Third Party Advisory, VDB Entry ([email protected])
http://www.theregister.co.uk/2010/12/11/exim_code_execution_peril/ Press/Media Coverage ([email protected])
http://www.ubuntu.com/usn/USN-1032-1 Third Party Advisory ([email protected])
http://www.vupen.com/english/advisories/2010/3171 Broken Link, Vendor Advisory ([email protected])
http://www.vupen.com/english/advisories/2010/3172 Broken Link, Vendor Advisory ([email protected])
http://www.vupen.com/english/advisories/2010/3181 Broken Link, Vendor Advisory ([email protected])
http://www.vupen.com/english/advisories/2010/3186 Broken Link, Vendor Advisory ([email protected])
http://www.vupen.com/english/advisories/2010/3204 Broken Link, Vendor Advisory ([email protected])
http://www.vupen.com/english/advisories/2010/3246 Broken Link, Vendor Advisory ([email protected])
http://www.vupen.com/english/advisories/2010/3317 Broken Link ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=661756 Exploit, Issue Tracking ([email protected])
ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.70 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://atmail.com/blog/2010/atmail-6204-now-available/ Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://bugs.exim.org/show_bug.cgi?id=787 Issue Tracking, Patch (af854a3a-2127-422b-91ae-364da2661108)
http://git.exim.org/exim.git/commit/24c929a27415c7cfc7126c47e4cad39acf3efa6b Mailing List, Patch (af854a3a-2127-422b-91ae-364da2661108)
http://lists.exim.org/lurker/message/20101210.164935.385e04d0.en.html Mailing List, Patch (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00003.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2010/12/10/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/40019 Broken Link, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/42576 Broken Link, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/42586 Broken Link, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/42587 Broken Link, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/42589 Broken Link, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.cpanel.net/2010/12/exim-remote-memory-corruption-vulnerability-notification-cve-2010-4344.html Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2010/dsa-2131 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.exim.org/lurker/message/20101207.215955.bb32d4f2.en.html Exploit, Mailing List (af854a3a-2127-422b-91ae-364da2661108)
http://www.kb.cert.org/vuls/id/682457 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
http://www.metasploit.com/modules/exploit/unix/smtp/exim4_string_format Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2021/05/04/7 Exploit, Mailing List (af854a3a-2127-422b-91ae-364da2661108)
http://www.osvdb.org/69685 Broken Link, Exploit, Patch (af854a3a-2127-422b-91ae-364da2661108)
http://www.redhat.com/support/errata/RHSA-2010-0970.html Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/archive/1/515172/100/0/threaded Broken Link, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/45308 Broken Link, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1024858 Broken Link, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.theregister.co.uk/2010/12/11/exim_code_execution_peril/ Press/Media Coverage (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/USN-1032-1 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2010/3171 Broken Link, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2010/3172 Broken Link, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2010/3181 Broken Link, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2010/3186 Broken Link, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2010/3204 Broken Link, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2010/3246 Broken Link, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2010/3317 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=661756 Exploit, Issue Tracking (af854a3a-2127-422b-91ae-364da2661108)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2010-4344 (134c704f-9b21-4f2e-91b3-4a467353bcc0)