CVE-2012-0840

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.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 20.84% Top 5%
Vendor Advisory mandriva.com Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://mail-archives.apache.org/mod_mbox/apr-commits/201201.mbox/%3C20120115003715.071D423888FD%40eris.apache.org%3E mailing list
https://exchange.xforce.ibmcloud.com/vulnerabilities/73096 vdb entry
http://openwall.com/lists/oss-security/2012/02/08/3 mailing list
http://www.mandriva.com/security/advisories?name=MDVSA-2012:019 vendor advisory
http://secunia.com/advisories/47862 third party advisory vendor advisory
http://svn.apache.org/viewvc?rev=1231605&view=rev patch
http://www.mail-archive.com/dev%40apr.apache.org/msg24439.html mailing list
http://www.mail-archive.com/dev%40apr.apache.org/msg24472.html mailing list
http://openwall.com/lists/oss-security/2012/02/09/1 mailing list
http://www.mail-archive.com/dev%40apr.apache.org/msg24473.html mailing list

Frequently Asked Questions

What is the severity of CVE-2012-0840?
CVE-2012-0840 has been scored as a medium severity vulnerability.
How to fix CVE-2012-0840?
To fix CVE-2012-0840, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2012-0840 being actively exploited in the wild?
It is possible that CVE-2012-0840 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~21% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.