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Vulnerability Details : CVE-2012-0840

tables/apr_hash.c in the Apache Portable Runtime (APR) library through 1.4.5 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.
Publish Date : 2012-02-10 Last Update Date : 2012-02-13
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
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 Service
CWE ID 20

- Products Affected By CVE-2012-0840

# Product Type Vendor Product Version Update Edition Language
1 Application Apache Portable Runtime 0.9.1 Version Details Vulnerabilities
2 Application Apache Portable Runtime 0.9.2-dev Version Details Vulnerabilities
3 Application Apache Portable Runtime 0.9.2 Version Details Vulnerabilities
4 Application Apache Portable Runtime 0.9.3 Version Details Vulnerabilities
5 Application Apache Portable Runtime 0.9.3-dev Version Details Vulnerabilities
6 Application Apache Portable Runtime 0.9.4 Version Details Vulnerabilities
7 Application Apache Portable Runtime 0.9.5 Version Details Vulnerabilities
8 Application Apache Portable Runtime 0.9.6 Version Details Vulnerabilities
9 Application Apache Portable Runtime 0.9.7 Version Details Vulnerabilities
10 Application Apache Portable Runtime 0.9.7-dev Version Details Vulnerabilities
11 Application Apache Portable Runtime 0.9.8 Version Details Vulnerabilities
12 Application Apache Portable Runtime 0.9.9 Version Details Vulnerabilities
13 Application Apache Portable Runtime 0.9.16-dev Version Details Vulnerabilities
14 Application Apache Portable Runtime 1.3.0 Version Details Vulnerabilities
15 Application Apache Portable Runtime 1.3.1 Version Details Vulnerabilities
16 Application Apache Portable Runtime 1.3.2 Version Details Vulnerabilities
17 Application Apache Portable Runtime 1.3.3 Version Details Vulnerabilities
18 Application Apache Portable Runtime 1.3.4 Version Details Vulnerabilities
19 Application Apache Portable Runtime 1.3.4-dev Version Details Vulnerabilities
20 Application Apache Portable Runtime 1.3.5 Version Details Vulnerabilities
21 Application Apache Portable Runtime 1.3.6-dev Version Details Vulnerabilities
22 Application Apache Portable Runtime 1.3.6 Version Details Vulnerabilities
23 Application Apache Portable Runtime 1.3.7 Version Details Vulnerabilities
24 Application Apache Portable Runtime 1.3.8 Version Details Vulnerabilities
25 Application Apache Portable Runtime 1.3.9 Version Details Vulnerabilities
26 Application Apache Portable Runtime 1.3.10 Version Details Vulnerabilities
27 Application Apache Portable Runtime 1.3.11 Version Details Vulnerabilities
28 Application Apache Portable Runtime 1.3.12 Version Details Vulnerabilities
29 Application Apache Portable Runtime 1.3.13 Version Details Vulnerabilities
30 Application Apache Portable Runtime 1.4.0 Version Details Vulnerabilities
31 Application Apache Portable Runtime 1.4.1 Version Details Vulnerabilities
32 Application Apache Portable Runtime 1.4.2 Version Details Vulnerabilities
33 Application Apache Portable Runtime 1.4.3 Version Details Vulnerabilities
34 Application Apache Portable Runtime 1.4.4 Version Details Vulnerabilities
35 Application Apache Portable Runtime 1.4.5 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Apache Portable Runtime 35

- References For CVE-2012-0840

http://mail-archives.apache.org/mod_mbox/apr-commits/201201.mbox/%3C20120115003715.071D423888FD@eris.apache.org%3E
MLIST [apr-commits] 20120115 svn commit: r1231605 - /apr/apr/trunk/tables/apr_hash.c
http://openwall.com/lists/oss-security/2012/02/08/3
MLIST [oss-security] 20120208 CVE request: apr - Hash DoS vulnerability
http://www.mail-archive.com/dev%40apr.apache.org/msg24439.html
MLIST [dev] 20120105 Hash collision vectors in APR?
http://secunia.com/advisories/47862
SECUNIA 47862
http://openwall.com/lists/oss-security/2012/02/09/1
MLIST [oss-security] 20120208 Re: CVE request: apr - Hash DoS vulnerability
http://www.mail-archive.com/dev%40apr.apache.org/msg24473.html
MLIST [dev] 20120114 Re: Hash collision vectors in APR?
http://www.mail-archive.com/dev%40apr.apache.org/msg24472.html
MLIST [dev] 20120113 Re: Hash collision vectors in APR?
http://xforce.iss.net/xforce/xfdb/73096
XF apacheapr-hash-dos(73096)
http://svn.apache.org/viewvc?rev=1231605&view=rev CONFIRM

- Metasploit Modules Related To CVE-2012-0840

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


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