java: Murmur hash function collisions (oCERT-2012-001)
Published Nov 28, 2012
5.0
MEDIUMCVSS 2.0
EPSS 2.29%
Description
Oracle Java SE 7 and earlier, and OpenJDK 7 and earlier, computes hash values without properly 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, as demonstrated by a universal multicollision attack against the MurmurHash3 algorithm, a different vulnerability than CVE-2012-2739.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
java-1.4.2-ibm
Under investigation
Red Hat Enterprise Linux 5
java-1.4.2-ibm-sap
Under investigation
Red Hat Enterprise Linux 5
java-1.5.0-ibm
Under investigation
Red Hat Enterprise Linux 5
java-1.6.0-ibm
Under investigation
Red Hat Enterprise Linux 5
java-1.6.0-openjdk
Under investigation
Red Hat Enterprise Linux 5
java-1.6.0-sun
Under investigation
Red Hat Enterprise Linux 6
java-1.4.2-ibm-sap
Under investigation
Red Hat Enterprise Linux 6
java-1.5.0-ibm
Under investigation
Red Hat Enterprise Linux 6
java-1.6.0-ibm
Under investigation
Red Hat Enterprise Linux 6
java-1.6.0-openjdk
Under investigation
Red Hat Enterprise Linux 6
java-1.6.0-sun
Under investigation
Red Hat Enterprise Linux 6
java-1.7.0-ibm
Under investigation
Red Hat Enterprise Linux 6
java-1.7.0-openjdk
Under investigation
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | java-1.4.2-ibm | Under investigation | n/a |
| Red Hat Enterprise Linux 5 | java-1.4.2-ibm-sap | Under investigation | n/a |
| Red Hat Enterprise Linux 5 | java-1.5.0-ibm | Under investigation | n/a |
| Red Hat Enterprise Linux 5 | java-1.6.0-ibm | Under investigation | n/a |
| Red Hat Enterprise Linux 5 | java-1.6.0-openjdk | Under investigation | n/a |
| Red Hat Enterprise Linux 5 | java-1.6.0-sun | Under investigation | n/a |
| Red Hat Enterprise Linux 6 | java-1.4.2-ibm-sap | Under investigation | n/a |
| Red Hat Enterprise Linux 6 | java-1.5.0-ibm | Under investigation | n/a |
| Red Hat Enterprise Linux 6 | java-1.6.0-ibm | Under investigation | n/a |
| Red Hat Enterprise Linux 6 | java-1.6.0-openjdk | Under investigation | n/a |
| Red Hat Enterprise Linux 6 | java-1.6.0-sun | Under investigation | n/a |
| Red Hat Enterprise Linux 6 | java-1.7.0-ibm | Under investigation | n/a |
| Red Hat Enterprise Linux 6 | java-1.7.0-openjdk | Under investigation | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.29% (0.02289) | 82.59th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.29% (0.02289) | 80.89th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.51% (0.00512) | 64.43th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.22% (0.00216) | 60.48th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.31% (0.00307) | 69.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.31% (0.00307) | 65.11th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
References (10)
- http://2012.appsec-forum.ch/conferences/#c17 x_refsource_MISC
- http://asfws12.files.wordpress.com/2012/11/asfws2012-jean_philippe_aumasson-martin_bosslet-hash_flooding_dos_reloaded.pdf x_refsource_MISC
- http://www.ocert.org/advisories/ocert-2012-001.html x_refsource_MISC
- http://www.securityfocus.com/bid/56673 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2012-5373 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=880705 x_refsource_CONFIRMIssue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80299 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2012-5373
- https://www.131002.net/data/talks/appsec12_slides.pdf x_refsource_MISC
- https://www.cve.org/CVERecord?id=CVE-2012-5373
| Link | Providers | Tags |
|---|---|---|
| http://2012.appsec-forum.ch/conferences/#c17 | x_refsource_MISC | |
| http://asfws12.files.wordpress.com/2012/11/asfws2012-jean_philippe_aumasson-martin_bosslet-hash_flooding_dos_reloaded.pdf | x_refsource_MISC | |
| http://www.ocert.org/advisories/ocert-2012-001.html | x_refsource_MISC | |
| http://www.securityfocus.com/bid/56673 | vdb-entryx_refsource_BID | |
| https://access.redhat.com/security/cve/CVE-2012-5373 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=880705 | x_refsource_CONFIRMIssue Tracking | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/80299 | vdb-entryx_refsource_XF | |
| https://nvd.nist.gov/vuln/detail/CVE-2012-5373 | ||
| https://www.131002.net/data/talks/appsec12_slides.pdf | x_refsource_MISC | |
| https://www.cve.org/CVERecord?id=CVE-2012-5373 |
Change history (0)
No recorded changes yet.