CVE-2010-4344

CRITICAL KEV

Exim < 4.70 - Out-of-Bounds Write

Title source: rule

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.

Exploits (2)

exploitdb WORKING POC VERIFIED

by kingcope · perlremotelinux

https://www.exploit-db.com/exploits/15725

View Code ZIP pw:eip

exploitdb WORKING POC

rubyremotelinux

https://www.exploit-db.com/exploits/16925

View on exploitdb

References (34)

[Broken Link] ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.70

[Broken Link] http://atmail.com/blog/2010/atmail-6204-now-available/

[Issue Tracking, Patch] http://bugs.exim.org/show_bug.cgi?id=787

[Mailing List, Patch] http://git.exim.org/exim.git/commit/24c929a27415c7cfc7126c47e4cad39acf3efa6b

[Mailing List, Patch] http://lists.exim.org/lurker/message/20101210.164935.385e04d0.en.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00003.html

[Mailing List, Third Party Advisory] http://openwall.com/lists/oss-security/2010/12/10/1

[Broken Link, Vendor Advisory] http://secunia.com/advisories/40019

[Broken Link, Vendor Advisory] http://secunia.com/advisories/42576

[Broken Link, Vendor Advisory] http://secunia.com/advisories/42586

[Broken Link, Vendor Advisory] http://secunia.com/advisories/42587

[Broken Link, Vendor Advisory] http://secunia.com/advisories/42589

[Broken Link] http://www.cpanel.net/2010/12/exim-remote-memory-corruption-vulnerability-notification-cve-2010-4344.html

[Mailing List, Third Party Advisory] http://www.debian.org/security/2010/dsa-2131

[Exploit, Mailing List] http://www.exim.org/lurker/message/20101207.215955.bb32d4f2.en.html

[Third Party Advisory, US Government Resource] http://www.kb.cert.org/vuls/id/682457

[Third Party Advisory] http://www.metasploit.com/modules/exploit/unix/smtp/exim4_string_format

[Exploit, Mailing List] http://www.openwall.com/lists/oss-security/2021/05/04/7

[Broken Link, Exploit, Patch] http://www.osvdb.org/69685

[Broken Link] http://www.redhat.com/support/errata/RHSA-2010-0970.html

... and 14 more

Scores

CVSS v3 9.8

EPSS 0.6146

EPSS Percentile 98.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation Intel

CISA KEV 2022-03-25

VulnCheck KEV 2010-12-10

InTheWild.io 2022-03-25

ENISA EUVD EUVD-2010-4313

Classification

CWE

CWE-787

Status draft

Affected Products (8)

exim/exim < 4.70

opensuse/opensuse

opensuse/opensuse

opensuse/opensuse

debian/debian_linux

canonical/ubuntu_linux

canonical/ubuntu_linux

canonical/ubuntu_linux

Timeline

Published Dec 14, 2010

KEV Added Mar 25, 2022

Tracked Since Feb 18, 2026