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CVE-2012-2739
Oracle Java SE before 7 Update 6, and OpenJDK 7 before 7u6 build 12 and 8 before build 39, computes hash values without restricting the…
Medium5.0EPSS 3.2%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
Oracle Java SE before 7 Update 6, and OpenJDK 7 before 7u6 build 12 and 8 before build 39, 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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 3.2% · top 12% of all CVEs (4 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
n/a
- affected n/a
References (8)
- http://www.nruns.com/_downloads/advisory28122011.pdf (opens in a new tab)x_refsource_MISCx_transferred
- http://armoredbarista.blogspot.de/2012/02/investigating-hashdos-issue.html (opens in a new tab)x_refsource_MISCx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=750533 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20120616 Re: CVE request: java hashdos vulnerability (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- VU#903934 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- [oss-security] 20120615 CVE request: java hashdos vulnerability (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [core-libs-dev] 20120522 Review Request CR#7118743 : Alternative Hashing for String with Hash-based Maps (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://www.ocert.org/advisories/ocert-2011-003.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2012-2739)Record last updated .