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Vulnerability Details : CVE-2009-1956

Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big-endian platforms allows remote attackers to obtain sensitive information or cause a denial of service (application crash) via crafted input.
Publish Date : 2009-06-07 Last Update Date : 2017-09-28
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
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 ServiceObtain Information
CWE ID 189

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate
AV:N/AC:M/Au:N/C:P/I:N/A:N 2009-06-05 2009-04-24
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- Related OVAL Definitions

Title Definition Id Class Family
APR-util off-by-one overflow oval:org.apache.httpd:def:20091956
CVE-2009-1956 unix
ELSA-2009:1107: apr-util security update (Moderate) oval:org.mitre.oval:def:22801 unix
HP-UX Apache-based Web Server, Local Information Disclosure, Increase of Privilege, Remote Denial of Service (DoS) oval:org.mitre.oval:def:12237 unix
Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big-endian platforms allows remo... oval:org.mitre.oval:def:11567 unix
RHSA-2009:1107 -- apr-util security update (Moderate) oval:org.mitre.oval:def:29299 unix
RHSA-2009:1107: apr-util security update (Moderate) oval:com.redhat.rhsa:def:20091107 unix
RHSA-2009:1108: httpd security update (Moderate) oval:com.redhat.rhsa:def:20091108 unix
USN-786-1 -- apr-util vulnerabilities oval:org.mitre.oval:def:13719 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-2009-1956

# Product Type Vendor Product Version Update Edition Language
1 Application Apache Apr-util 0.9.1 Version Details Vulnerabilities
2 Application Apache Apr-util 0.9.2 Version Details Vulnerabilities
3 Application Apache Apr-util 0.9.3 Version Details Vulnerabilities
4 Application Apache Apr-util 0.9.4 Version Details Vulnerabilities
5 Application Apache Apr-util 0.9.5 Version Details Vulnerabilities
6 Application Apache Apr-util 1.0 Version Details Vulnerabilities
7 Application Apache Apr-util 1.0.1 Version Details Vulnerabilities
8 Application Apache Apr-util 1.0.2 Version Details Vulnerabilities
9 Application Apache Apr-util 1.1.0 Version Details Vulnerabilities
10 Application Apache Apr-util 1.1.1 Version Details Vulnerabilities
11 Application Apache Apr-util 1.1.2 Version Details Vulnerabilities
12 Application Apache Apr-util 1.2.1 Version Details Vulnerabilities
13 Application Apache Apr-util 1.2.2 Version Details Vulnerabilities
14 Application Apache Apr-util 1.2.6 Version Details Vulnerabilities
15 Application Apache Apr-util 1.2.7 Version Details Vulnerabilities
16 Application Apache Apr-util 1.2.8 Version Details Vulnerabilities
17 Application Apache Apr-util 1.3.0 Version Details Vulnerabilities
18 Application Apache Apr-util 1.3.1 Version Details Vulnerabilities
19 Application Apache Apr-util 1.3.2 Version Details Vulnerabilities
20 Application Apache Apr-util 1.3.3 Version Details Vulnerabilities
21 Application Apache Apr-util 1.3.4 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Apache Apr-util 21

- References For CVE-2009-1956
VUPEN ADV-2009-1907
REDHAT RHSA-2009:1107
REDHAT RHSA-2009:1108
BID 35251 Apache APR-util 'apr_brigade_vprintf' Off By One Vulnerability Release Date:2013-04-17
MLIST [oss-security] 20090605 CVE Request (apr-util) CONFIRM
MANDRIVA MDVSA-2013:150[email protected]/msg21591.html
MLIST [dev] 20090424 Buffer overflow in apr_brigade_vprintf() ?[email protected]/msg21592.html
MLIST [dev] 20090424 Re: Buffer overflow in apr_brigade_vprintf() ? CONFIRM
GENTOO GLSA-200907-03
APPLE APPLE-SA-2009-11-09-1

- Metasploit Modules Related To CVE-2009-1956

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

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