CVE-2009-3875 json
The MessageDigest.isEqual function in Java Runtime Environment (JRE) in Sun Java SE in JDK and JRE 5.0 before Update 22, JDK and JRE 6 befo…
published 2009-11-05 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-3846
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.2%
- EPSS 3.2% chance of exploitation in 30 days, percentile 88%
- public exploits
- 0
- none known
Summary
The MessageDigest.isEqual function in Java Runtime Environment (JRE) in Sun Java SE in JDK and JRE 5.0 before Update 22, JDK and JRE 6 before Update 17, SDK and JRE 1.3.x before 1.3.1_27, and SDK and JRE 1.4.x before 1.4.2_24 allows remote attackers to spoof HMAC-based digital signatures, and possibly bypass authentication, via unspecified vectors related to "timing attack vulnerabilities," aka Bug Id 6863503.
Patch / fix
- java-1.6.0-ibm RHEL 4 EXTRAS, network satellite 5.3 1:1.6.0.7-1jpp.3.el4
- java-1.6.0-ibm RHEL 5 EXTRAS, network satellite 5.3 1:1.6.0.7-1jpp.2.el5
- java-1.6.0-openjdk RHEL 5 1:1.6.0.0-1.7.b09.el5
- java-1.6.0-openjdk-src RHEL 5 1:1.6.0.0-1.7.b09.el5
- java-1.6.0-openjdk-demo RHEL 5 1:1.6.0.0-1.7.b09.el5
- java-1.6.0-openjdk-javadoc RHEL 5 1:1.6.0.0-1.7.b09.el5
- java-1.5.0-sun RHEL 4 EXTRAS 1.5.0.22-1jpp.1.el4
- java-1.5.0-sun RHEL 5 EXTRAS 1.5.0.22-1jpp.1.el5
red hat advisories RHSA-2010:0043RHSA-2009:1584RHSA-2009:1571RHSA-2009:1560RHSA-2010:0408RHSA-2009:1694
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2009-3875 updated cvss 4.3
OpenJDK MessageDigest.isEqual introduces timing attack vulnerabilities (6863503)
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Red Hat Desktop version 3 Extras java-1.4.2-ibm 1.4.2.13.3-1jpp.1.el3, java-1.4.2-ibm-src 1.4.2.13.3-1jpp.1.el3, java-1.4.2-ibm-demo 1.4.2.13.3-1jpp.1.el3, java-1.4.2-ibm-jdbc 1.4.2.13.3-1jpp.1.el3, java-1.4.2-ibm-plugin 1.4.2.13.3-1jpp.1.el3 Red Hat Desktop version 4 Extras java-1.6.0-ibm 1.6.0.7-1jpp.3.el4, java-1.5.0-ibm 1.5.0.11-1jpp.1.el4, java-1.5.0-sun 1.5.0.22-1jpp.1.el4, java-1.6.0-sun 1.6.0.17-1jpp.1.el4, java-1.4.2-ibm 1.4.2.13.3-1jpp.1.el4, java-1.6.0-ibm-src 1.6.0.7-1jpp.3.el4, +22 morefixed: vendor fix RHSA-2009:1643
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Red Hat Enterprise Linux (v. 5 server) java-1.6.0-openjdk 1.6.0.0-1.7.b09.el5, java-1.6.0-openjdk-src 1.6.0.0-1.7.b09.el5, java-1.6.0-openjdk-demo 1.6.0.0-1.7.b09.el5, java-1.6.0-openjdk-javadoc 1.6.0.0-1.7.b09.el5fixed: vendor fix RHSA-2009:1584
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Red Hat Enterprise Linux AS version 3 Extras java-1.4.2-ibm 1.4.2.13.3-1jpp.1.el3, java-1.4.2-ibm-src 1.4.2.13.3-1jpp.1.el3, java-1.4.2-ibm-demo 1.4.2.13.3-1jpp.1.el3, java-1.4.2-ibm-jdbc 1.4.2.13.3-1jpp.1.el3, java-1.4.2-ibm-plugin 1.4.2.13.3-1jpp.1.el3 Red Hat Enterprise Linux AS version 4 Extras java-1.6.0-ibm 1.6.0.7-1jpp.3.el4, java-1.5.0-ibm 1.5.0.11-1jpp.1.el4, java-1.5.0-sun 1.5.0.22-1jpp.1.el4, java-1.6.0-sun 1.6.0.17-1jpp.1.el4, java-1.4.2-ibm 1.4.2.13.3-1jpp.1.el4, java-1.6.0-ibm-src 1.6.0.7-1jpp.3.el4, +22 morefixed: vendor fix RHSA-2009:1643
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Red Hat Enterprise Linux Desktop (v. 5 client) java-1.6.0-openjdk 1.6.0.0-1.7.b09.el5, java-1.6.0-openjdk-src 1.6.0.0-1.7.b09.el5, java-1.6.0-openjdk-demo 1.6.0.0-1.7.b09.el5, java-1.6.0-openjdk-javadoc 1.6.0.0-1.7.b09.el5fixed: vendor fix RHSA-2009:1584
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Red Hat Enterprise Linux Desktop Supplementary (v. 5) java-1.6.0-ibm 1.6.0.7-1jpp.2.el5, java-1.5.0-ibm 1.5.0.11-1jpp.1.el5, java-1.5.0-sun 1.5.0.22-1jpp.1.el5, java-1.6.0-sun 1.6.0.17-1jpp.2.el5, java-1.4.2-ibm 1.4.2.13.3-1jpp.1.el5, java-1.6.0-ibm-src 1.6.0.7-1jpp.2.el5, +24 more Red Hat Enterprise Linux ES version 3 Extras java-1.4.2-ibm 1.4.2.13.3-1jpp.1.el3, java-1.4.2-ibm-src 1.4.2.13.3-1jpp.1.el3, java-1.4.2-ibm-demo 1.4.2.13.3-1jpp.1.el3, java-1.4.2-ibm-jdbc 1.4.2.13.3-1jpp.1.el3, java-1.4.2-ibm-plugin 1.4.2.13.3-1jpp.1.el3 Red Hat Enterprise Linux ES version 4 Extras java-1.6.0-ibm 1.6.0.7-1jpp.3.el4, java-1.5.0-ibm 1.5.0.11-1jpp.1.el4, java-1.5.0-sun 1.5.0.22-1jpp.1.el4, java-1.6.0-sun 1.6.0.17-1jpp.1.el4, java-1.4.2-ibm 1.4.2.13.3-1jpp.1.el4, java-1.6.0-ibm-src 1.6.0.7-1jpp.3.el4, +22 more Red Hat Enterprise Linux Server Supplementary (v. 5) java-1.6.0-ibm 1.6.0.7-1jpp.2.el5, java-1.5.0-ibm 1.5.0.11-1jpp.1.el5, java-1.5.0-sun 1.5.0.22-1jpp.1.el5, java-1.6.0-sun 1.6.0.17-1jpp.2.el5, java-1.4.2-ibm 1.4.2.13.3-1jpp.1.el5, java-1.6.0-ibm-src 1.6.0.7-1jpp.2.el5, +24 more Red Hat Enterprise Linux WS version 3 Extras java-1.4.2-ibm 1.4.2.13.3-1jpp.1.el3, java-1.4.2-ibm-src 1.4.2.13.3-1jpp.1.el3, java-1.4.2-ibm-demo 1.4.2.13.3-1jpp.1.el3, java-1.4.2-ibm-jdbc 1.4.2.13.3-1jpp.1.el3, java-1.4.2-ibm-plugin 1.4.2.13.3-1jpp.1.el3 Red Hat Enterprise Linux WS version 4 Extras java-1.6.0-ibm 1.6.0.7-1jpp.3.el4, java-1.5.0-ibm 1.5.0.11-1jpp.1.el4, java-1.5.0-sun 1.5.0.22-1jpp.1.el4, java-1.6.0-sun 1.6.0.17-1jpp.1.el4, java-1.4.2-ibm 1.4.2.13.3-1jpp.1.el4, java-1.6.0-ibm-src 1.6.0.7-1jpp.3.el4, +22 morefixed: vendor fix RHSA-2009:1643
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Red Hat Satellite 5.3 (RHEL v.4) java-1.6.0-ibm 1.6.0.7-1jpp.3.el4 Red Hat Satellite 5.3 (RHEL v.5) java-1.6.0-ibm 1.6.0.7-1jpp.2.el5fixed: vendor fix RHSA-2010:0043
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Red Hat RHEL 4 AS for SAP java-1.4.2-ibm 1.4.2.13.4.sap-1jpp.1.el4_8, java-1.4.2-ibm-src 1.4.2.13.4.sap-1jpp.1.el4_8, java-1.4.2-ibm-demo 1.4.2.13.4.sap-1jpp.1.el4_8, java-1.4.2-ibm-javacomm 1.4.2.13.4.sap-1jpp.1.el4_8 Red Hat RHEL 5 Server for SAP java-1.4.2-ibm 1.4.2.13.4.sap-1jpp.1.el5, java-1.4.2-ibm-src 1.4.2.13.4.sap-1jpp.1.el5, java-1.4.2-ibm-demo 1.4.2.13.4.sap-1jpp.1.el5, java-1.4.2-ibm-javacomm 1.4.2.13.4.sap-1jpp.1.el5fixed: vendor fix RHSA-2010:0408
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
3.17% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-310 Cryptographic Issues
References
-
sunsolve.sun.com
/search/document.do?assetkey=1-66-270475-1
vendor-advisory, patch
-
marc.info
/?l=bugtraq&m=126566824131534&w=2
vendor-advisory
-
marc.info
/?l=bugtraq&m=134254866602253&w=2
vendor-advisory
-
marc.info
/?l=bugtraq&m=131593453929393&w=2
vendor-advisory
-
security.gentoo.org
/glsa/glsa-200911-02.xml
vendor-advisory
-
redhat.com
/support/errata/RHSA-2009-1694.html
vendor-advisory
-
lists.apple.com
/archives/security-announce/2009/Dec/msg00000.html
vendor-advisory
-
lists.opensuse.org
/opensuse-security-announce/2009-11/msg00010.html
vendor-advisory
-
lists.apple.com
/archives/security-announce/2009/Dec/msg00001.html
vendor-advisory
-
mandriva.com
/security/advisories?name=MDVSA-2010:084
vendor-advisory
-
secunia.com
/advisories/37231
third-party-advisory, vendor-advisory
-
vupen.com
/english/advisories/2009/3131
vdb-entry, vendor-advisory
-
securityfocus.com
/bid/36881
vdb-entry
- support.apple.com /kb/HT3970
- support.apple.com /kb/HT3969
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12112
vdb-entry, signature
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7549
vdb-entry, signature
-
secunia.com
/advisories/37581
third-party-advisory
- oracle.com /technetwork/topics/security/cpujan2010-084891.html
- java.sun.com /javase/6/webnotes/6u17.html
-
secunia.com
/advisories/37841
third-party-advisory
-
secunia.com
/advisories/37239
third-party-advisory
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11847
vdb-entry, signature
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7913
vdb-entry, signature
-
secunia.com
/advisories/37386
third-party-advisory
Sources
- CVE List CVE-2009-3875
- NVD CVE-2009-3875
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.