CVE-2006-0591

Severity: low (CVSS 1.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2006-02-08 · updated 2026-06-16
Weakness: CWE-310

Description

The crypt_gensalt functions for BSDI-style extended DES-based and FreeBSD-sytle MD5-based password hashes in crypt_blowfish 0.4.7 and earlier do not evenly and randomly distribute salts, which makes it easier for attackers to guess passwords from a stolen password file due to the increased number of collisions.

Affected products

Solar Designer Crypt Blowfish: 0.4.7

References

http://cvsweb.openwall.com/cgi/cvsweb.cgi/Owl/packages/glibc/crypt_blowfish/crypt_gensalt.c?only_with_tag=CRYPT_BLOWFISH_1_0
http://secunia.com/advisories/18772
http://secunia.com/advisories/20232
http://secunia.com/advisories/20653
http://secunia.com/advisories/20782
http://support.avaya.com/elmodocs2/security/ASA-2006-113.htm
http://www.osvdb.org/23005
http://www.redhat.com/support/errata/RHSA-2006-0526.html
http://www.securityfocus.com/archive/1/424260/100/0/threaded
http://www.vupen.com/english/advisories/2006/0477
https://exchange.xforce.ibmcloud.com/vulnerabilities/24590

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