CVE-2010-4344

HIGH

Description

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

ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.70

http://atmail.com/blog/2010/atmail-6204-now-available/

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://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.cpanel.net/2010/12/exim-remote-memory-corruption-vulnerability-notification-cve-2010-4344.html

http://www.debian.org/security/2010/dsa-2131

http://www.exim.org/lurker/message/20101207.215955.bb32d4f2.en.html

http://www.kb.cert.org/vuls/id/682457

http://www.metasploit.com/modules/exploit/unix/smtp/exim4_string_format

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/

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

https://bugzilla.redhat.com/show_bug.cgi?id=661756

Details

Source: MITRE

Published: 2010-12-14

Updated: 2018-10-10

Type: CWE-119

Risk Information

CVSS v2.0

Base Score: 9.3

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

Impact Score: 10

Exploitability Score: 8.6

Severity: HIGH