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CVE-2011-2483· NVD / CVE Program· CNA redhat

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

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.

MediumCVSS 5.0 · v2.0—No exploit Fix available
Published
Aug 25, 2011
Updated
Jun 16, 2026
EPSS
5.0% · 92th percentile
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Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
20 / 40 · 5.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 5.0%

Affected systems

VendorProduct
phpphp
postgresqlpostgresql
openwallcrypt blowfish

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Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • php phpbefore 5.3.7
  • postgresql postgresql8.2.0 and later · before 8.2.22
  • postgresql postgresql8.3.0 and later · before 8.3.16
  • postgresql postgresql8.4.0 and later · before 8.4.9
  • postgresql postgresql9.0.0 and later · before 9.0.5

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12libxcryptbefore 1:2.4-1.11:2.4-1.1
Debian:5.0php5before 5.2.6.dfsg.1-1+lenny145.2.6.dfsg.1-1+lenny14
Debian:5.0postgresql-8.3before 8.3.16-0lenny18.3.16-0lenny1
Debian:6.0php5before 5.3.3-7+squeeze55.3.3-7+squeeze5
Debian:6.0postgresql-8.4before 8.4.9-0squeeze18.4.9-0squeeze1
openSUSE:Tumbleweedyast2-corebefore 3.2.0-1.13.2.0-1.1
Red Hat:enterprise_linux:4::aspostgresqlbefore 0:7.4.30-3.el40:7.4.30-3.el4
Red Hat:enterprise_linux:4::aspostgresql-contribbefore 0:7.4.30-3.el40:7.4.30-3.el4
Red Hat:enterprise_linux:4::aspostgresql-debuginfobefore 0:7.4.30-3.el40:7.4.30-3.el4
Red Hat:enterprise_linux:4::aspostgresql-develbefore 0:7.4.30-3.el40:7.4.30-3.el4
Red Hat:enterprise_linux:4::aspostgresql-docsbefore 0:7.4.30-3.el40:7.4.30-3.el4
Red Hat:enterprise_linux:4::aspostgresql-jdbcbefore 0:7.4.30-3.el40:7.4.30-3.el4
Red Hat:enterprise_linux:4::aspostgresql-libsbefore 0:7.4.30-3.el40:7.4.30-3.el4
Red Hat:enterprise_linux:4::aspostgresql-plbefore 0:7.4.30-3.el40:7.4.30-3.el4
Red Hat:enterprise_linux:4::aspostgresql-pythonbefore 0:7.4.30-3.el40:7.4.30-3.el4
Red Hat:enterprise_linux:4::aspostgresql-serverbefore 0:7.4.30-3.el40:7.4.30-3.el4
Red Hat:enterprise_linux:4::aspostgresql-tclbefore 0:7.4.30-3.el40:7.4.30-3.el4
Red Hat:enterprise_linux:4::aspostgresql-testbefore 0:7.4.30-3.el40:7.4.30-3.el4
Red Hat:enterprise_linux:5::clientpostgresqlbefore 0:8.1.23-1.el5_7.20:8.1.23-1.el5_7.2
Red Hat:enterprise_linux:5::clientpostgresql-contribbefore 0:8.1.23-1.el5_7.20:8.1.23-1.el5_7.2
Red Hat:enterprise_linux:5::clientpostgresql-debuginfobefore 0:8.1.23-1.el5_7.20:8.1.23-1.el5_7.2
Red Hat:enterprise_linux:5::clientpostgresql-docsbefore 0:8.1.23-1.el5_7.20:8.1.23-1.el5_7.2
Red Hat:enterprise_linux:5::clientpostgresql-libsbefore 0:8.1.23-1.el5_7.20:8.1.23-1.el5_7.2
Red Hat:enterprise_linux:5::clientpostgresql-pythonbefore 0:8.1.23-1.el5_7.20:8.1.23-1.el5_7.2

+78

Same product

php: all records

Other highest-scoring records for the same primary product.

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    99Now
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  • CVE-2012-1823sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI script (aka php-cgi), does not properly handle queKEV
    99Now
  • CVE-2018-7584In PHP through 5.6.33, 7.0.x before 7.0.28, 7.1.x through 7.1.14, and 7.2.x through 7.2.2, there is a stack-based buffer under-read while pa
    65This week
  • CVE-2018-19518University of Washington IMAP Toolkit 2007f on UNIX, as used in imap_open() in PHP and other products, launches an rsh command (by means of
    59Plan
  • CVE-2016-3078Multiple integer overflows in php_zip.c in the zip extension in PHP before 7.0.6 allow remote attackers to cause a denial of service (heap-b
    56Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:libxcrypt1:2.4-1.1 · Debian:12Package registry (OSV)
debian:php55.3.3-7+squeeze5 · Debian:6.0Package registry (OSV)
debian:postgresql-8.38.3.16-0lenny1 · Debian:5.0Package registry (OSV)
debian:postgresql-8.48.4.9-0squeeze1 · Debian:6.0Package registry (OSV)
opensuse:yast2-core3.2.0-1.1 · openSUSE:TumbleweedPackage registry (OSV)
red hat:postgresql0:7.4.30-3.el4 · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:postgresql-contrib0:7.4.30-3.el4 · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:postgresql-debuginfo0:7.4.30-3.el4 · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:postgresql-devel0:7.4.30-3.el4 · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:postgresql-docs0:7.4.30-3.el4 · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:postgresql-jdbc0:7.4.30-3.el4 · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:postgresql-libs0:7.4.30-3.el4 · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:postgresql-pl0:7.4.30-3.el4 · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:postgresql-python0:7.4.30-3.el4 · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:postgresql-server0:7.4.30-3.el4 · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:postgresql-tcl0:7.4.30-3.el4 · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:postgresql-test0:7.4.30-3.el4 · Red Hat:enterprise_linux:4::asPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
P · data can be read
Integrity
none
Availability
none
Attack complexity
Low
Confidentiality impact
P
Integrity impact
None
Availability impact
None

CVSS vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

  1. Fix✗ → ✓

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References

All records