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Last updated: 11/27/2015 9:15:51 PM

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Vulnerability Summary for CVE-2010-4344

Original release date: 12/14/2010
Last revised: 01/12/2011


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.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 9.3 (HIGH) (AV:N/AC:M/Au:N/C:C/I:C/A:C) (legend)
Impact Subscore: 10.0
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: VUPEN
Name: ADV-2010-3181
Type: Advisory
External Source: CONFIRM
Name: http://bugs.exim.org/show_bug.cgi?id=787
Type: Patch Information
External Source: VUPEN
Name: ADV-2010-3172
Type: Advisory
External Source: DEBIAN
Name: DSA-2131
External Source: CONFIRM
Name: ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.70
External Source: CONFIRM
Name: http://www.cpanel.net/2010/12/exim-remote-memory-corruption-vulnerability-notification-cve-2010-4344.html
External Source: MLIST
Name: [oss-security] 20101210 Exim remote root
External Source: UBUNTU
Name: USN-1032-1
External Source: MLIST
Name: [exim-dev] 20101210 Re: Remote root vulnerability in Exim
Type: Patch Information
External Source: VUPEN
Name: ADV-2010-3246
Type: Advisory
External Source: REDHAT
Name: RHSA-2010:0970
External Source: VUPEN
Name: ADV-2010-3186
Type: Advisory
External Source: BID
Name: 45308
External Source: SECTRACK
Name: 1024858
External Source: CONFIRM
Name: http://atmail.com/blog/2010/atmail-6204-now-available/
US-CERT Vulnerability Note: CERT-VN
Name: VU#682457
External Source: SUSE
Name: SUSE-SA:2010:059
External Source: CONFIRM
Name: http://git.exim.org/exim.git/commit/24c929a27415c7cfc7126c47e4cad39acf3efa6b
Type: Patch Information
External Source: MISC
Name: http://www.theregister.co.uk/2010/12/11/exim_code_execution_peril/
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=661756
External Source: OSVDB
Name: 69685
Type: Patch Information; Exploit
External Source: BUGTRAQ
Name: 20101213 Exim security issue in historical release
External Source: VUPEN
Name: ADV-2010-3317
External Source: VUPEN
Name: ADV-2010-3204
Type: Advisory
External Source: VUPEN
Name: ADV-2010-3171
Type: Advisory
External Source: MISC
Name: http://www.metasploit.com/modules/exploit/unix/smtp/exim4_string_format
External Source: MLIST
Name: [exim-dev] 20101207 Remote root vulnerability in Exim

Vulnerable software and versions

+ Configuration 1
+ OR
* cpe:/a:exim:exim:4.51
* cpe:/a:exim:exim:4.50
* cpe:/a:exim:exim:4.44
* cpe:/a:exim:exim:4.43
* cpe:/a:exim:exim:4.34
* cpe:/a:exim:exim:4.33
* cpe:/a:exim:exim:4.31
* cpe:/a:exim:exim:4.30
* cpe:/a:exim:exim:4.64
* cpe:/a:exim:exim:4.63
* cpe:/a:exim:exim:4.62
* cpe:/a:exim:exim:4.61
* cpe:/a:exim:exim:4.60
* cpe:/a:exim:exim:4.54
* cpe:/a:exim:exim:4.53
* cpe:/a:exim:exim:4.52
* cpe:/a:exim:exim:4.23
* cpe:/a:exim:exim:4.24
* cpe:/a:exim:exim:4.21
* cpe:/a:exim:exim:4.22
* cpe:/a:exim:exim:4.42
* cpe:/a:exim:exim:4.65
* cpe:/a:exim:exim:4.66
* cpe:/a:exim:exim:4.67
* cpe:/a:exim:exim:4.68
* cpe:/a:exim:exim:4.10
* cpe:/a:exim:exim:4.41
* cpe:/a:exim:exim:4.40
* cpe:/a:exim:exim:4.32
* cpe:/a:exim:exim:4.20
* cpe:/a:exim:exim:4.69 and previous versions
* cpe:/a:exim:exim:4.11
* cpe:/a:exim:exim:4.12
* cpe:/a:exim:exim:4.14
* cpe:/a:exim:exim:4.05
* cpe:/a:exim:exim:4.04
* cpe:/a:exim:exim:4.03
* cpe:/a:exim:exim:4.02
* cpe:/a:exim:exim:4.01
* cpe:/a:exim:exim:4.00
* cpe:/a:exim:exim:3.36
* cpe:/a:exim:exim:3.35
* cpe:/a:exim:exim:3.34
* cpe:/a:exim:exim:3.33
* cpe:/a:exim:exim:3.32
* cpe:/a:exim:exim:3.31
* cpe:/a:exim:exim:3.30
* cpe:/a:exim:exim:3.22
* cpe:/a:exim:exim:3.21
* cpe:/a:exim:exim:3.20
* cpe:/a:exim:exim:3.16
* cpe:/a:exim:exim:3.15
* cpe:/a:exim:exim:3.14
* cpe:/a:exim:exim:3.13
* cpe:/a:exim:exim:3.12
* cpe:/a:exim:exim:3.11
* cpe:/a:exim:exim:3.10
* cpe:/a:exim:exim:3.03
* cpe:/a:exim:exim:3.02
* cpe:/a:exim:exim:3.01
* cpe:/a:exim:exim:3.00
* cpe:/a:exim:exim:2.12
* cpe:/a:exim:exim:2.11
* cpe:/a:exim:exim:2.10

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

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