DescriptionInteger 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs780102

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libjbcrypt-java (PTS)bullseye0.4-2.1fixed
sid, trixie, bookworm0.4-3fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[jessie] - libjbcrypt-java <no-dsa> (Minor issue)
[wheezy] - libjbcrypt-java <no-dsa> (Minor issue)
[squeeze] - libjbcrypt-java <no-dsa> (Minor issue)

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