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Servers and applications

CVE-2011-2483

crypt_blowfish before 1.1, as used in PHP before 5.3.7 on certain platforms, PostgreSQL before 8.4.9, and other products, does not properly handle 8-bit characters, which makes it easier for context-dependent attackers to determine a cleartext password by leveraging knowledge of a password hash.

Severity
Medium 5.0
Published
25 Aug 2011
Last changed
16 Jun 2026
Added to UpHeron
14 Oct 2026
Fixed in
5.3.7, 8.2.22, 8.3.16, 8.4.9, 9.0.5
Exploit chance
5% in the next 30 daysHigher than 92% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-310
Attack
Over the network · No login needed
Attacker can
Read some data
CVSS vector
AV:N/AC:L/Au:N/C:P/I:N/A:N
Sources
NVD

Affected software

SoftwareAffected versions
PHPServers and applications · cpe:a:php:php
  • Every version before 5.3.7
PostgreSQLServers and applications · cpe:a:postgresql:postgresql
  • From 8.2.0 before 8.2.22
  • From 8.3.0 before 8.3.16
  • From 8.4.0 before 8.4.9
  • From 9.0.0 before 9.0.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-2483
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-2483