CVE-2012-0840
MEDIUM · CVSS 5.0EPSS 42.1%EU EUVD
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.
Key facts
- CVSS score
- 5.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P- Weakness (CWE)
- CWE-20
- EPSS score
- 42.1% (99th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2012-0865)
- Published
- February 10, 2012
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2012-0865 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
- apache / portable runtime
References
- http://mail-archives.apache.org/mod_mbox/apr-commits/201201.mbox/%3C20120115003715.071D423888FD%40eris.apache.org%3E
- http://openwall.com/lists/oss-security/2012/02/08/3
- http://openwall.com/lists/oss-security/2012/02/09/1
- http://secunia.com/advisories/47862(Vendor Advisory)
- http://svn.apache.org/viewvc?rev=1231605&view=rev(Patch)
- http://www.mail-archive.com/dev%40apr.apache.org/msg24439.html
- http://www.mail-archive.com/dev%40apr.apache.org/msg24472.html
- http://www.mail-archive.com/dev%40apr.apache.org/msg24473.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:019
- https://exchange.xforce.ibmcloud.com/vulnerabilities/73096
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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