CVE-2023-39418 (GCVE-0-2023-39418)

Vulnerability from cvelistv5 – Published: 2023-08-11 12:19 – Updated: 2025-11-21 07:05
VLAI?
Title
Postgresql: merge fails to enforce update or select row security policies
Summary
A vulnerability was found in PostgreSQL with the use of the MERGE command, which fails to test new rows against row security policies defined for UPDATE and SELECT. If UPDATE and SELECT policies forbid some rows that INSERT policies do not forbid, a user could store such rows.
Severity ?
3.1 (Low)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
CWE
  • CWE-1220 - Insufficient Granularity of Access Control
Assigner
References
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 8 Unaffected: 8090020231114113548.a75119d5 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support Unaffected: 8080020231113134015.63b34585 , < * (rpm)
    cpe:/a:redhat:rhel_eus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 9030020231120082734.rhel9 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
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    Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support Unaffected: 9020020231115020618.rhel9 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.2::appstream
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    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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    Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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    Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
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    Red Hat Red Hat Software Collections     cpe:/a:redhat:rhel_software_collections:3
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    Red Hat Red Hat Software Collections     cpe:/a:redhat:rhel_software_collections:3
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    Red Hat Red Hat Software Collections     cpe:/a:redhat:rhel_software_collections:3
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\"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2023:7885\", \"name\": \"RHSA-2023:7885\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/security/cve/CVE-2023-39418\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2228112\", \"name\": \"RHBZ#2228112\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=cb2ae5741f2458a474ed3c31458d242e678ff229\"}, {\"url\": \"https://www.postgresql.org/support/security/CVE-2023-39418/\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability was found in PostgreSQL with the use of the MERGE command, which fails to test new rows against row security policies defined for UPDATE and SELECT. If UPDATE and SELECT policies forbid some rows that INSERT policies do not forbid, a user could store such rows.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1220\", \"description\": \"Insufficient Granularity of Access Control\"}]}], \"providerMetadata\": {\"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\", \"dateUpdated\": \"2025-11-21T07:05:52.288Z\"}, \"x_redhatCweChain\": \"CWE-1220: Insufficient Granularity of Access Control\"}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-39418\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-21T07:05:52.288Z\", \"dateReserved\": \"2023-08-01T09:31:02.842Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2023-08-11T12:19:15.819Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.