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Vulnerability Details : CVE-2011-1720

The SMTP server in Postfix before 2.5.13, 2.6.x before 2.6.10, 2.7.x before 2.7.4, and 2.8.x before 2.8.3, when certain Cyrus SASL authentication methods are enabled, does not create a new server handle after client authentication fails, which allows remote attackers to cause a denial of service (heap memory corruption and daemon crash) or possibly execute arbitrary code via an invalid AUTH command with one method followed by an AUTH command with a different method.
Publish Date : 2011-05-13 Last Update Date : 2017-08-16
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- CVSS Scores & Vulnerability Types

CVSS Score
6.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceExecute CodeOverflowMemory corruption
CWE ID 119

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate
4.3
AV:N/AC:M/Au:N/C:N/I:N/A:P 2011-04-20 2011-05-09
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2011-1720 oval:org.opensuse.security:def:20111720 unix
DSA-2233-1 postfix -- several oval:org.mitre.oval:def:13019 unix
ELSA-2011:0843: postfix security update (Moderate) oval:org.mitre.oval:def:23665 unix
RHSA-2011:0843: postfix security update (Moderate) oval:com.redhat.rhsa:def:20110843 unix
RHSA-2011:0843: postfix security update (Moderate) oval:org.mitre.oval:def:21899 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2011-1720

# Product Type Vendor Product Version Update Edition Language
1 Application Postfix Postfix 2.0.0 Version Details Vulnerabilities
2 Application Postfix Postfix 2.0.1 Version Details Vulnerabilities
3 Application Postfix Postfix 2.0.2 Version Details Vulnerabilities
4 Application Postfix Postfix 2.0.3 Version Details Vulnerabilities
5 Application Postfix Postfix 2.0.4 Version Details Vulnerabilities
6 Application Postfix Postfix 2.0.5 Version Details Vulnerabilities
7 Application Postfix Postfix 2.0.6 Version Details Vulnerabilities
8 Application Postfix Postfix 2.0.7 Version Details Vulnerabilities
9 Application Postfix Postfix 2.0.8 Version Details Vulnerabilities
10 Application Postfix Postfix 2.0.9 Version Details Vulnerabilities
11 Application Postfix Postfix 2.0.10 Version Details Vulnerabilities
12 Application Postfix Postfix 2.0.11 Version Details Vulnerabilities
13 Application Postfix Postfix 2.0.12 Version Details Vulnerabilities
14 Application Postfix Postfix 2.0.13 Version Details Vulnerabilities
15 Application Postfix Postfix 2.0.14 Version Details Vulnerabilities
16 Application Postfix Postfix 2.0.15 Version Details Vulnerabilities
17 Application Postfix Postfix 2.0.16 Version Details Vulnerabilities
18 Application Postfix Postfix 2.0.17 Version Details Vulnerabilities
19 Application Postfix Postfix 2.0.18 Version Details Vulnerabilities
20 Application Postfix Postfix 2.0.19 Version Details Vulnerabilities
21 Application Postfix Postfix 2.1.0 Version Details Vulnerabilities
22 Application Postfix Postfix 2.1.1 Version Details Vulnerabilities
23 Application Postfix Postfix 2.1.2 Version Details Vulnerabilities
24 Application Postfix Postfix 2.1.3 Version Details Vulnerabilities
25 Application Postfix Postfix 2.1.4 Version Details Vulnerabilities
26 Application Postfix Postfix 2.1.5 Version Details Vulnerabilities
27 Application Postfix Postfix 2.1.6 Version Details Vulnerabilities
28 Application Postfix Postfix 2.2.0 Version Details Vulnerabilities
29 Application Postfix Postfix 2.2.1 Version Details Vulnerabilities
30 Application Postfix Postfix 2.2.2 Version Details Vulnerabilities
31 Application Postfix Postfix 2.2.3 Version Details Vulnerabilities
32 Application Postfix Postfix 2.2.4 Version Details Vulnerabilities
33 Application Postfix Postfix 2.2.5 Version Details Vulnerabilities
34 Application Postfix Postfix 2.2.6 Version Details Vulnerabilities
35 Application Postfix Postfix 2.2.7 Version Details Vulnerabilities
36 Application Postfix Postfix 2.2.8 Version Details Vulnerabilities
37 Application Postfix Postfix 2.2.9 Version Details Vulnerabilities
38 Application Postfix Postfix 2.2.10 Version Details Vulnerabilities
39 Application Postfix Postfix 2.2.11 Version Details Vulnerabilities
40 Application Postfix Postfix 2.2.12 Version Details Vulnerabilities
41 Application Postfix Postfix 2.3 Version Details Vulnerabilities
42 Application Postfix Postfix 2.3.0 Version Details Vulnerabilities
43 Application Postfix Postfix 2.3.1 Version Details Vulnerabilities
44 Application Postfix Postfix 2.3.2 Version Details Vulnerabilities
45 Application Postfix Postfix 2.3.3 Version Details Vulnerabilities
46 Application Postfix Postfix 2.3.4 Version Details Vulnerabilities
47 Application Postfix Postfix 2.3.5 Version Details Vulnerabilities
48 Application Postfix Postfix 2.3.6 Version Details Vulnerabilities
49 Application Postfix Postfix 2.3.7 Version Details Vulnerabilities
50 Application Postfix Postfix 2.3.8 Version Details Vulnerabilities
51 Application Postfix Postfix 2.3.9 Version Details Vulnerabilities
52 Application Postfix Postfix 2.3.10 Version Details Vulnerabilities
53 Application Postfix Postfix 2.3.11 Version Details Vulnerabilities
54 Application Postfix Postfix 2.3.12 Version Details Vulnerabilities
55 Application Postfix Postfix 2.3.13 Version Details Vulnerabilities
56 Application Postfix Postfix 2.3.14 Version Details Vulnerabilities
57 Application Postfix Postfix 2.3.15 Version Details Vulnerabilities
58 Application Postfix Postfix 2.3.16 Version Details Vulnerabilities
59 Application Postfix Postfix 2.3.17 Version Details Vulnerabilities
60 Application Postfix Postfix 2.3.18 Version Details Vulnerabilities
61 Application Postfix Postfix 2.3.19 Version Details Vulnerabilities
62 Application Postfix Postfix 2.4 Version Details Vulnerabilities
63 Application Postfix Postfix 2.4.0 Version Details Vulnerabilities
64 Application Postfix Postfix 2.4.1 Version Details Vulnerabilities
65 Application Postfix Postfix 2.4.2 Version Details Vulnerabilities
66 Application Postfix Postfix 2.4.3 Version Details Vulnerabilities
67 Application Postfix Postfix 2.4.4 Version Details Vulnerabilities
68 Application Postfix Postfix 2.4.5 Version Details Vulnerabilities
69 Application Postfix Postfix 2.4.6 Version Details Vulnerabilities
70 Application Postfix Postfix 2.4.7 Version Details Vulnerabilities
71 Application Postfix Postfix 2.4.8 Version Details Vulnerabilities
72 Application Postfix Postfix 2.4.9 Version Details Vulnerabilities
73 Application Postfix Postfix 2.4.10 Version Details Vulnerabilities
74 Application Postfix Postfix 2.4.11 Version Details Vulnerabilities
75 Application Postfix Postfix 2.4.12 Version Details Vulnerabilities
76 Application Postfix Postfix 2.4.13 Version Details Vulnerabilities
77 Application Postfix Postfix 2.4.14 Version Details Vulnerabilities
78 Application Postfix Postfix 2.4.15 Version Details Vulnerabilities
79 Application Postfix Postfix 2.5.0 Version Details Vulnerabilities
80 Application Postfix Postfix 2.5.1 Version Details Vulnerabilities
81 Application Postfix Postfix 2.5.2 Version Details Vulnerabilities
82 Application Postfix Postfix 2.5.3 Version Details Vulnerabilities
83 Application Postfix Postfix 2.5.4 Version Details Vulnerabilities
84 Application Postfix Postfix 2.5.5 Version Details Vulnerabilities
85 Application Postfix Postfix 2.5.6 Version Details Vulnerabilities
86 Application Postfix Postfix 2.5.7 Version Details Vulnerabilities
87 Application Postfix Postfix 2.5.8 Version Details Vulnerabilities
88 Application Postfix Postfix 2.5.9 Version Details Vulnerabilities
89 Application Postfix Postfix 2.5.10 Version Details Vulnerabilities
90 Application Postfix Postfix 2.5.11 Version Details Vulnerabilities
91 Application Postfix Postfix 2.5.12 Version Details Vulnerabilities
92 Application Postfix Postfix 2.6 Version Details Vulnerabilities
93 Application Postfix Postfix 2.6.0 Version Details Vulnerabilities
94 Application Postfix Postfix 2.6.1 Version Details Vulnerabilities
95 Application Postfix Postfix 2.6.2 Version Details Vulnerabilities
96 Application Postfix Postfix 2.6.3 Version Details Vulnerabilities
97 Application Postfix Postfix 2.6.4 Version Details Vulnerabilities
98 Application Postfix Postfix 2.6.5 Version Details Vulnerabilities
99 Application Postfix Postfix 2.6.6 Version Details Vulnerabilities
100 Application Postfix Postfix 2.6.7 Version Details Vulnerabilities
101 Application Postfix Postfix 2.6.8 Version Details Vulnerabilities
102 Application Postfix Postfix 2.6.9 Version Details Vulnerabilities
103 Application Postfix Postfix 2.7.0 Version Details Vulnerabilities
104 Application Postfix Postfix 2.7.1 Version Details Vulnerabilities
105 Application Postfix Postfix 2.7.2 Version Details Vulnerabilities
106 Application Postfix Postfix 2.7.3 Version Details Vulnerabilities
107 Application Postfix Postfix 2.8.0 Version Details Vulnerabilities
108 Application Postfix Postfix 2.8.1 Version Details Vulnerabilities
109 Application Postfix Postfix 2.8.2 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Postfix Postfix 109

- References For CVE-2011-1720

http://www.ubuntu.com/usn/usn-1131-1
UBUNTU USN-1131-1
https://exchange.xforce.ibmcloud.com/vulnerabilities/67359
XF postfix-cyrus-sasl-code-exec(67359)
https://bugzilla.redhat.com/show_bug.cgi?id=699035 CONFIRM
http://www.mandriva.com/security/advisories?name=MDVSA-2011:090
MANDRIVA MDVSA-2011:090
http://www.postfix.org/announcements/postfix-2.8.3.html CONFIRM
http://www.postfix.org/CVE-2011-1720.html CONFIRM
http://www.securityfocus.com/archive/1/archive/1/517917/100/0/threaded
BUGTRAQ 20110509 Memory corruption in Postfix SMTP server Cyrus SASL support (CVE-2011-1720)
http://www.securitytracker.com/id?1025521
SECTRACK 1025521
http://www.securityfocus.com/bid/47778
BID 47778 Postfix SMTP Server Cyrus SASL Support Memory Corruption Vulnerability Release Date:2012-06-25
http://www.kb.cert.org/vuls/id/727230
CERT-VN VU#727230
http://www.debian.org/security/2011/dsa-2233
DEBIAN DSA-2233
http://securityreason.com/securityalert/8247
SREASON 8247
http://www.mail-archive.com/[email protected]/msg00007.html
MLIST [postfix-announce] 20110509 Memory corruption in Postfix SMTP server Cyrus SASL support (CVE-2011-1720)
http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00002.html
SUSE SUSE-SA:2011:023
http://security.gentoo.org/glsa/glsa-201206-33.xml
GENTOO GLSA-201206-33
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705 CONFIRM

- Metasploit Modules Related To CVE-2011-1720

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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