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Vulnerability Details : CVE-2011-4623

Integer overflow in the rsCStrExtendBuf function in runtime/stringbuf.c in the imfile module in rsyslog 4.x before 4.6.6, 5.x before 5.7.4, and 6.x before 6.1.4 allows local users to cause a denial of service (daemon hang) via a large file, which triggers a heap-based buffer overflow.
Publish Date : 2012-09-25 Last Update Date : 2012-09-26
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- CVSS Scores & Vulnerability Types

CVSS Score
2.1
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceOverflow
CWE ID 189

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate
5.4
AV:A/AC:M/Au:N/C:P/I:P/A:P 2011-12-22 2011-02-09
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- Related OVAL Definitions

Title Definition Id Class Family
DEPRECATED: ELSA-2012-0796 -- rsyslog security, bug fix, and enhancement update (moderate) oval:org.mitre.oval:def:27839 unix
ELSA-2012:0796: rsyslog security, bug fix, and enhancement update (Moderate) oval:org.mitre.oval:def:22990 unix
RHSA-2012:0796: rsyslog security, bug fix, and enhancement update (Moderate) oval:org.mitre.oval:def:21554 unix
RHSA-2012:0796: rsyslog security, bug fix, and enhancement update (Moderate) oval:com.redhat.rhsa:def:20120796 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-2011-4623

# Product Type Vendor Product Version Update Edition Language
1 Application Rsyslog Rsyslog 4.1.0 * * * Version Details Vulnerabilities
2 Application Rsyslog Rsyslog 4.1.1 * * * Version Details Vulnerabilities
3 Application Rsyslog Rsyslog 4.1.2 * * * Version Details Vulnerabilities
4 Application Rsyslog Rsyslog 4.1.3 * * * Version Details Vulnerabilities
5 Application Rsyslog Rsyslog 4.1.4 * * * Version Details Vulnerabilities
6 Application Rsyslog Rsyslog 4.1.5 * * * Version Details Vulnerabilities
7 Application Rsyslog Rsyslog 4.1.6 * * * Version Details Vulnerabilities
8 Application Rsyslog Rsyslog 4.1.7 * * * Version Details Vulnerabilities
9 Application Rsyslog Rsyslog 4.2.0 * * * Version Details Vulnerabilities
10 Application Rsyslog Rsyslog 4.3.0 * * * Version Details Vulnerabilities
11 Application Rsyslog Rsyslog 4.3.1 * * * Version Details Vulnerabilities
12 Application Rsyslog Rsyslog 4.3.2 * * * Version Details Vulnerabilities
13 Application Rsyslog Rsyslog 4.4.0 * * * Version Details Vulnerabilities
14 Application Rsyslog Rsyslog 4.4.1 * * * Version Details Vulnerabilities
15 Application Rsyslog Rsyslog 4.4.2 * * * Version Details Vulnerabilities
16 Application Rsyslog Rsyslog 4.5.0 * * * Version Details Vulnerabilities
17 Application Rsyslog Rsyslog 4.5.1 * * * Version Details Vulnerabilities
18 Application Rsyslog Rsyslog 4.5.2 * * * Version Details Vulnerabilities
19 Application Rsyslog Rsyslog 4.5.3 * * * Version Details Vulnerabilities
20 Application Rsyslog Rsyslog 4.5.4 * * * Version Details Vulnerabilities
21 Application Rsyslog Rsyslog 4.5.5 * * * Version Details Vulnerabilities
22 Application Rsyslog Rsyslog 4.5.6 * * * Version Details Vulnerabilities
23 Application Rsyslog Rsyslog 4.5.7 * * * Version Details Vulnerabilities
24 Application Rsyslog Rsyslog 4.5.8 * * * Version Details Vulnerabilities
25 Application Rsyslog Rsyslog 4.6.0 * * * Version Details Vulnerabilities
26 Application Rsyslog Rsyslog 4.6.1 * * * Version Details Vulnerabilities
27 Application Rsyslog Rsyslog 4.6.2 * * * Version Details Vulnerabilities
28 Application Rsyslog Rsyslog 4.6.3 * * * Version Details Vulnerabilities
29 Application Rsyslog Rsyslog 4.6.4 * * * Version Details Vulnerabilities
30 Application Rsyslog Rsyslog 4.6.5 * * * Version Details Vulnerabilities
31 Application Rsyslog Rsyslog 5.1.0 * * * Version Details Vulnerabilities
32 Application Rsyslog Rsyslog 5.1.1 * * * Version Details Vulnerabilities
33 Application Rsyslog Rsyslog 5.1.2 * * * Version Details Vulnerabilities
34 Application Rsyslog Rsyslog 5.1.3 * * * Version Details Vulnerabilities
35 Application Rsyslog Rsyslog 5.1.4 * * * Version Details Vulnerabilities
36 Application Rsyslog Rsyslog 5.1.5 * * * Version Details Vulnerabilities
37 Application Rsyslog Rsyslog 5.1.6 * * * Version Details Vulnerabilities
38 Application Rsyslog Rsyslog 5.2.0 * * * Version Details Vulnerabilities
39 Application Rsyslog Rsyslog 5.2.1 * * * Version Details Vulnerabilities
40 Application Rsyslog Rsyslog 5.2.2 * * * Version Details Vulnerabilities
41 Application Rsyslog Rsyslog 5.3.1 * * * Version Details Vulnerabilities
42 Application Rsyslog Rsyslog 5.3.2 * * * Version Details Vulnerabilities
43 Application Rsyslog Rsyslog 5.3.3 * * * Version Details Vulnerabilities
44 Application Rsyslog Rsyslog 5.3.4 * * * Version Details Vulnerabilities
45 Application Rsyslog Rsyslog 5.3.5 * * * Version Details Vulnerabilities
46 Application Rsyslog Rsyslog 5.3.6 * * * Version Details Vulnerabilities
47 Application Rsyslog Rsyslog 5.3.7 * * * Version Details Vulnerabilities
48 Application Rsyslog Rsyslog 5.4.0 * * * Version Details Vulnerabilities
49 Application Rsyslog Rsyslog 5.4.1 * * * Version Details Vulnerabilities
50 Application Rsyslog Rsyslog 5.4.2 * * * Version Details Vulnerabilities
51 Application Rsyslog Rsyslog 5.5.0 * * * Version Details Vulnerabilities
52 Application Rsyslog Rsyslog 5.5.1 * * * Version Details Vulnerabilities
53 Application Rsyslog Rsyslog 5.5.2 * * * Version Details Vulnerabilities
54 Application Rsyslog Rsyslog 5.5.3 * * * Version Details Vulnerabilities
55 Application Rsyslog Rsyslog 5.5.4 * * * Version Details Vulnerabilities
56 Application Rsyslog Rsyslog 5.5.5 * * * Version Details Vulnerabilities
57 Application Rsyslog Rsyslog 5.5.6 * * * Version Details Vulnerabilities
58 Application Rsyslog Rsyslog 5.5.7 * * * Version Details Vulnerabilities
59 Application Rsyslog Rsyslog 5.6.0 * * * Version Details Vulnerabilities
60 Application Rsyslog Rsyslog 5.6.1 * * * Version Details Vulnerabilities
61 Application Rsyslog Rsyslog 5.6.2 * * * Version Details Vulnerabilities
62 Application Rsyslog Rsyslog 5.6.3 * * * Version Details Vulnerabilities
63 Application Rsyslog Rsyslog 5.6.4 * * * Version Details Vulnerabilities
64 Application Rsyslog Rsyslog 5.6.5 * * * Version Details Vulnerabilities
65 Application Rsyslog Rsyslog 5.7.0 * * * Version Details Vulnerabilities
66 Application Rsyslog Rsyslog 5.7.1 * * * Version Details Vulnerabilities
67 Application Rsyslog Rsyslog 5.7.2 * * * Version Details Vulnerabilities
68 Application Rsyslog Rsyslog 5.7.3 * * * Version Details Vulnerabilities
69 Application Rsyslog Rsyslog 6.1.0 * * * Version Details Vulnerabilities
70 Application Rsyslog Rsyslog 6.1.1 * * * Version Details Vulnerabilities
71 Application Rsyslog Rsyslog 6.1.2 * * * Version Details Vulnerabilities
72 Application Rsyslog Rsyslog 6.1.3 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Rsyslog Rsyslog 72

- References For CVE-2011-4623

http://www.securitytracker.com/id?1026556
SECTRACK 1026556
http://rsyslog.com/changelog-for-4-6-6-v4-stable/ CONFIRM
http://secunia.com/advisories/47698
SECUNIA 47698
https://bugzilla.redhat.com/show_bug.cgi?id=769822
http://rsyslog.com/changelog-for-6-1-4-devel/ CONFIRM
http://www.securityfocus.com/bid/51171
BID 51171 RSyslog Function Imfile Module Buffer Overflow Vulnerability Release Date:2014-12-28
http://www.ubuntu.com/usn/USN-1338-1
UBUNTU USN-1338-1
http://secunia.com/advisories/45848
SECUNIA 45848
http://www.openwall.com/lists/oss-security/2011/12/22/2
MLIST [oss-security] 20111222 Re: CVE Request -- rsyslog -- DoS due integer signedness error while extending rsyslog counted string buffer
http://rsyslog.com/changelog-for-5-7-4-v5-beta/ CONFIRM
http://git.adiscon.com/?p=rsyslog.git;a=commit;h=6bad782f154b7f838c7371bf99c13f6dc4ec4101 CONFIRM
http://bugzilla.adiscon.com/show_bug.cgi?id=221 CONFIRM

- Metasploit Modules Related To CVE-2011-4623

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


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