CVE-2015-0886: Jbcrypt Integer Overflow Or Wraparound Vulnerability

MODERATE
Advisory Identifier: GHSA-9h6p-92jq-888x
Share
CWE-190
Published
Advisory Summary

CVE-2015-0886 is a MODERATE integer overflow or wraparound vulnerability (CWE-190: Integer Overflow or Wraparound) affecting Jbcrypt libraries in the Maven ecosystem. The issue involves integer overflow or wraparound in jbcrypt. Remediation is available by upgrading affected packages to version 0.4.

CVE-2015-0886 at a Glance

CVE Identifier CVE-2015-0886
GHSA Identifier GHSA-9h6p-92jq-888x
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-190: Integer Overflow or Wraparound
Affected Product Jbcrypt
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2015-0886

To remediate this vulnerability, upgrade all affected Jbcrypt dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.mindrot:jbcrypt fixed: 0.4 
<dependency>
    <groupId>org.mindrot</groupId>
    <artifactId>jbcrypt</artifactId>
    <version>0.4</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.mindrot

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2015-0886, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.mindrot

Analyze the terminal output to locate any version of Jbcrypt in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.4), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.mindrot command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-190: Integer Overflow or Wraparound, where the product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. this occurs when an integer value is incremented to a value that is too large to store in the associated representation. when this occurs, the value may become a very small or negative number. In Jbcrypt, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Integer overflow in the crypt_raw method in the key-stretching implementation in JBCrypt before 0.4 makes it easier for remote attackers to determine cleartext values of password hashes via a brute-force attack against hashes associated with the maximum exponent.

CVE-2015-0886 Affected Jbcrypt Versions

1 component(s)
Fixed Versions:
0.4
Product / Package Ecosystem Affected Versions Fixed Version
org.mindrot:jbcrypt
maven/org.mindrot/jbcrypt
Maven
< 0.4
0.4

References

NVD — CVE-2015-0886 NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-0886
bugzilla.mindrot.org/show_bug.cgi WEB
https://bugzilla.mindrot.org/show_bug.cgi?id=2097
lists.apache.org/thread.html/rbd23e3... WEB
https://lists.apache.org/thread.html/rbd23e3ac8113b4da0a025c0e45170b6ec317383a1cf06090c2c717aa@%3Ccommits.cassandra.apache.org%3E
lists.apache.org/thread.html/rd5c225... WEB
https://lists.apache.org/thread.html/rd5c2256b8dc9935e4bb5e9be90adce58408054bb42523730a40c5548@%3Ccommits.cassandra.apache.org%3E
lists.apache.org/thread.html/re330cf... WEB
https://lists.apache.org/thread.html/re330cfe9e5d84e3f7da8ace23ec32f38cb3fbd328bf177badd7ad942@%3Ccommits.cassandra.apache.org%3E
jvn.jp/en/jp/jvn77718330/i... WEB
http://jvn.jp/en/jp/JVN77718330/index.html
jvndb.jvn.jp/jvndb/jvndb-2015-00... WEB
http://jvndb.jvn.jp/jvndb/JVNDB-2015-000033
lists.fedoraproject.org/pipermail/package-a... WEB
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151496.html
lists.fedoraproject.org/pipermail/package-a... WEB
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151786.html
lists.fedoraproject.org/pipermail/package-a... WEB
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151797.html
www.mindrot.org/projects/jbcrypt/ne... WEB
http://www.mindrot.org/projects/jBCrypt/news/rel04.html

Frequently Asked Questions

What is CVE-2015-0886?
CVE-2015-0886 is a security vulnerability in Jbcrypt involving Integer Overflow or Wraparound in JBCrypt under CWE-190: Integer Overflow or Wraparound.
Which Jbcrypt versions are affected?
Affected versions include releases prior to 0.4 across affected packages: org.mindrot:jbcrypt.
What version fixes CVE-2015-0886?
Upgrading to 0.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is jbcrypt affected?
Yes, org.mindrot:jbcrypt is affected in releases prior to 0.4. Upgrade your dependency to 0.4 or later.
What CWE is associated with CVE-2015-0886?
CVE-2015-0886 is classified under CWE-190: Integer Overflow or Wraparound (The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.).
How can I check Maven dependencies for CVE-2015-0886?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.mindrot'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
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  "schema_version" : "1.4.0",
  "id" : "GHSA-9h6p-92jq-888x",
  "modified" : "2022-07-06T20:28:22Z",
  "published" : "2022-05-13T01:05:53Z",
  "aliases" : [ "CVE-2015-0886" ],
  "summary" : "Integer Overflow or Wraparound in JBCrypt",
  "details" : "Integer overflow in the crypt_raw method in the key-stretching implementation in JBCrypt before 0.4 makes it easier for remote attackers to determine cleartext values of password hashes via a brute-force attack against hashes associated with the maximum exponent.",
  "severity" : [ ],
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  } ],
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  }, {
    "type" : "WEB",
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  }, {
    "type" : "WEB",
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  }, {
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  }, {
    "type" : "WEB",
    "url" : "http://www.mindrot.org/projects/jBCrypt/news/rel04.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-190" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-07-06T20:28:22Z",
    "nvd_published_at" : "2015-02-28T02:59:00Z"
  }
}