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Fencer Vulns
low 1.2

CVE-2006-0591 json

The crypt_gensalt functions for BSDI-style extended DES-based and FreeBSD-sytle MD5-based password hashes in crypt_blowfish 0.4.7 and earli…

published 2006-02-08 20 y ago modified 2026-06-16 4 mo ago also EUVD-2006-0598

cvss
1.2
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 33%
public exploits
0
none known

Summary

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.

Patch / fix

  • postgresql RHEL 4 7.4.13-2.RHEL4.1
  • postgresql-pl RHEL 4 7.4.13-2.RHEL4.1
  • rh-postgresql RHEL 3 7.3.15-2
  • postgresql-tcl RHEL 4 7.4.13-2.RHEL4.1
  • postgresql-jdbc RHEL 4 7.4.13-2.RHEL4.1
  • postgresql-libs RHEL 4 7.4.13-2.RHEL4.1
  • postgresql-test RHEL 4 7.4.13-2.RHEL4.1
  • rh-postgresql-pl RHEL 3 7.3.15-2

red hat advisories RHSA-2006:0526

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-2006-0591 updated

security flaw

  • Red Hat Desktop version 3 rh-postgresql 7.3.15-2, rh-postgresql-pl 7.3.15-2, rh-postgresql-tcl 7.3.15-2, rh-postgresql-jdbc 7.3.15-2, rh-postgresql-libs 7.3.15-2, rh-postgresql-test 7.3.15-2, +3 more Red Hat Enterprise Linux AS version 3 rh-postgresql 7.3.15-2, rh-postgresql-pl 7.3.15-2, rh-postgresql-tcl 7.3.15-2, rh-postgresql-jdbc 7.3.15-2, rh-postgresql-libs 7.3.15-2, rh-postgresql-test 7.3.15-2, +3 more Red Hat Enterprise Linux AS version 4 postgresql 7.4.13-2.RHEL4.1, postgresql-pl 7.4.13-2.RHEL4.1, postgresql-tcl 7.4.13-2.RHEL4.1, postgresql-jdbc 7.4.13-2.RHEL4.1, postgresql-libs 7.4.13-2.RHEL4.1, postgresql-test 7.4.13-2.RHEL4.1, +3 more Red Hat Enterprise Linux Desktop version 4 postgresql 7.4.13-2.RHEL4.1, postgresql-pl 7.4.13-2.RHEL4.1, postgresql-tcl 7.4.13-2.RHEL4.1, postgresql-jdbc 7.4.13-2.RHEL4.1, postgresql-libs 7.4.13-2.RHEL4.1, postgresql-test 7.4.13-2.RHEL4.1, +3 more Red Hat Enterprise Linux ES version 3 rh-postgresql 7.3.15-2, rh-postgresql-pl 7.3.15-2, rh-postgresql-tcl 7.3.15-2, rh-postgresql-jdbc 7.3.15-2, rh-postgresql-libs 7.3.15-2, rh-postgresql-test 7.3.15-2, +3 more Red Hat Enterprise Linux ES version 4 postgresql 7.4.13-2.RHEL4.1, postgresql-pl 7.4.13-2.RHEL4.1, postgresql-tcl 7.4.13-2.RHEL4.1, postgresql-jdbc 7.4.13-2.RHEL4.1, postgresql-libs 7.4.13-2.RHEL4.1, postgresql-test 7.4.13-2.RHEL4.1, +3 more
    +2 more products
    Red Hat Enterprise Linux WS version 3 rh-postgresql 7.3.15-2, rh-postgresql-pl 7.3.15-2, rh-postgresql-tcl 7.3.15-2, rh-postgresql-jdbc 7.3.15-2, rh-postgresql-libs 7.3.15-2, rh-postgresql-test 7.3.15-2, +3 more Red Hat Enterprise Linux WS version 4 postgresql 7.4.13-2.RHEL4.1, postgresql-pl 7.4.13-2.RHEL4.1, postgresql-tcl 7.4.13-2.RHEL4.1, postgresql-jdbc 7.4.13-2.RHEL4.1, postgresql-libs 7.4.13-2.RHEL4.1, postgresql-test 7.4.13-2.RHEL4.1, +3 more
    fixed: vendor fix RHSA-2006:0526

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

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 1.2 AV:L/AC:H/Au:N/C:P/I:N/A:N

Classification

Weakness

References

Sources

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.