CVE-2012-0840
Summary
| CVE | CVE-2012-0840 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2012-02-10 19:55:02 UTC |
| Updated | 2026-04-29 01:13:23 UTC |
| Description | 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. |
Risk And Classification
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
NoneConfidentiality
NoneIntegrity
NoneAvailability
PartialAV:N/AC:L/Au:N/C:N/I:N/A:P
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Apache | Portable Runtime | 0.9.1 | All | All | All |
| Application | Apache | Portable Runtime | 0.9.16-dev | All | All | All |
| Application | Apache | Portable Runtime | 0.9.2 | All | All | All |
| Application | Apache | Portable Runtime | 0.9.2-dev | All | All | All |
| Application | Apache | Portable Runtime | 0.9.3 | All | All | All |
| Application | Apache | Portable Runtime | 0.9.3-dev | All | All | All |
| Application | Apache | Portable Runtime | 0.9.4 | All | All | All |
| Application | Apache | Portable Runtime | 0.9.5 | All | All | All |
| Application | Apache | Portable Runtime | 0.9.6 | All | All | All |
| Application | Apache | Portable Runtime | 0.9.7 | All | All | All |
| Application | Apache | Portable Runtime | 0.9.7-dev | All | All | All |
| Application | Apache | Portable Runtime | 0.9.8 | All | All | All |
| Application | Apache | Portable Runtime | 0.9.9 | All | All | All |
| Application | Apache | Portable Runtime | 1.3.0 | All | All | All |
| Application | Apache | Portable Runtime | 1.3.1 | All | All | All |
| Application | Apache | Portable Runtime | 1.3.10 | All | All | All |
| Application | Apache | Portable Runtime | 1.3.11 | All | All | All |
| Application | Apache | Portable Runtime | 1.3.12 | All | All | All |
| Application | Apache | Portable Runtime | 1.3.13 | All | All | All |
| Application | Apache | Portable Runtime | 1.3.2 | All | All | All |
| Application | Apache | Portable Runtime | 1.3.3 | All | All | All |
| Application | Apache | Portable Runtime | 1.3.4 | All | All | All |
| Application | Apache | Portable Runtime | 1.3.4-dev | All | All | All |
| Application | Apache | Portable Runtime | 1.3.5 | All | All | All |
| Application | Apache | Portable Runtime | 1.3.6 | All | All | All |
| Application | Apache | Portable Runtime | 1.3.6-dev | All | All | All |
| Application | Apache | Portable Runtime | 1.3.7 | All | All | All |
| Application | Apache | Portable Runtime | 1.3.8 | All | All | All |
| Application | Apache | Portable Runtime | 1.3.9 | All | All | All |
| Application | Apache | Portable Runtime | 1.4.0 | All | All | All |
| Application | Apache | Portable Runtime | 1.4.1 | All | All | All |
| Application | Apache | Portable Runtime | 1.4.2 | All | All | All |
| Application | Apache | Portable Runtime | 1.4.3 | All | All | All |
| Application | Apache | Portable Runtime | 1.4.4 | All | All | All |
| Application | Apache | Portable Runtime | All | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Re: Hash collision vectors in APR? | af854a3a-2127-422b-91ae-364da2661108 | www.mail-archive.com | |
| oss-security - Re: CVE request: apr - Hash DoS vulnerability | af854a3a-2127-422b-91ae-364da2661108 | openwall.com | |
| Security Alerts - Secunia | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | Vendor Advisory |
| svn commit: r1231605 - /apr/apr/trunk/tables/apr_hash.c | af854a3a-2127-422b-91ae-364da2661108 | mail-archives.apache.org | |
| IBM X-Force Exchange | af854a3a-2127-422b-91ae-364da2661108 | exchange.xforce.ibmcloud.com | |
| Hash collision vectors in APR? | af854a3a-2127-422b-91ae-364da2661108 | www.mail-archive.com | |
| [Apache-SVN] Revision 1231605 | af854a3a-2127-422b-91ae-364da2661108 | svn.apache.org | Patch |
| Re: Hash collision vectors in APR? | af854a3a-2127-422b-91ae-364da2661108 | www.mail-archive.com | |
| oss-security - CVE request: apr - Hash DoS vulnerability | af854a3a-2127-422b-91ae-364da2661108 | openwall.com | |
| www.mandriva.com | af854a3a-2127-422b-91ae-364da2661108 | www.mandriva.com | |
| svn commit: r1231605 - /apr/apr/trunk/tables/apr_hash.c | MITRE | mail-archives.apache.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.