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Fencer Vulns
medium 6.6

CVE-2007-0556 json

The query planner in PostgreSQL before 8.0.11, 8.1 before 8.1.7, and 8.2 before 8.2.2 does not verify that a table is compatible with a "pr…

published 2007-02-06 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-0554

cvss
6.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.1%
EPSS 3.1% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

The query planner in PostgreSQL before 8.0.11, 8.1 before 8.1.7, and 8.2 before 8.2.2 does not verify that a table is compatible with a "previously made query plan," which allows remote authenticated users to cause a denial of service (server crash) and possibly access database content via an "ALTER COLUMN TYPE" SQL statement, which can be leveraged to read arbitrary memory from the server.

Patch / fix

  • postgresql RHEL 5 8.1.8-1.el5
  • postgresql-pl RHEL 5 8.1.8-1.el5
  • postgresql-tcl RHEL 5 8.1.8-1.el5
  • postgresql-libs RHEL 5 8.1.8-1.el5
  • postgresql-test RHEL 5 8.1.8-1.el5
  • postgresql-python RHEL 5 8.1.8-1.el5
  • postgresql-server RHEL 5 8.1.8-1.el5
  • postgresql-contrib RHEL 5 8.1.8-1.el5

red hat advisories RHSA-2007:0068RHSA-2007:0067

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-2007-0556 updated

security flaw

  • Red Hat Application Stack v1 for Enterprise Linux AS (v.4) postgresql 8.1.7-3.el4s1.1, postgresql-pl 8.1.7-3.el4s1.1, postgresql-tcl 8.1.7-3.el4s1.1, postgresql-libs 8.1.7-3.el4s1.1, postgresql-test 8.1.7-3.el4s1.1, postgresql-python 8.1.7-3.el4s1.1, +2 more Red Hat Application Stack v1 for Enterprise Linux ES (v.4) postgresql 8.1.7-3.el4s1.1, postgresql-pl 8.1.7-3.el4s1.1, postgresql-tcl 8.1.7-3.el4s1.1, postgresql-libs 8.1.7-3.el4s1.1, postgresql-test 8.1.7-3.el4s1.1, postgresql-python 8.1.7-3.el4s1.1, +2 more
    fixed: vendor fix RHSA-2007:0067
  • Red Hat Enterprise Linux (v. 5 server) postgresql 8.1.8-1.el5, postgresql-pl 8.1.8-1.el5, postgresql-tcl 8.1.8-1.el5, postgresql-libs 8.1.8-1.el5, postgresql-test 8.1.8-1.el5, postgresql-python 8.1.8-1.el5, +2 more Red Hat Enterprise Linux Desktop (v. 5 client) postgresql 8.1.8-1.el5, postgresql-pl 8.1.8-1.el5, postgresql-tcl 8.1.8-1.el5, postgresql-libs 8.1.8-1.el5, postgresql-test 8.1.8-1.el5, postgresql-python 8.1.8-1.el5, +2 more Red Hat Enterprise Linux Desktop Workstation (v. 5 client) postgresql 8.1.8-1.el5, postgresql-pl 8.1.8-1.el5, postgresql-tcl 8.1.8-1.el5, postgresql-libs 8.1.8-1.el5, postgresql-test 8.1.8-1.el5, postgresql-python 8.1.8-1.el5, +2 more
    fixed: vendor fix RHSA-2007:0068

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

3.11% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 6.6 AV:N/AC:H/Au:S/C:C/I:N/A:C

Classification

Technology feeds

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.