CVE-2023-5868

Postgresql: memory disclosure in aggregate function calls

MEDIUM
4.3
CVSS Score
Published: December 10, 2023 at 05:56 PM UTC
Updated: June 23, 2026 at 07:34 PM UTC
16 products affected across 2 vendorsEnterprise LinuxEnterprise Linux Server AusEnterprise Linux Eus

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Severity
MEDIUM4.3
Exploit prediction
EPSS 3%
SSVC
No known exploit

Description

A memory disclosure vulnerability was found in PostgreSQL that allows remote users to access sensitive information by exploiting certain aggregate function calls with 'unknown'-type arguments. Handling 'unknown'-type values from string literals without type designation can disclose bytes, potentially revealing notable and confidential information. This issue exists due to excessive data output in aggregate function calls, enabling remote users to read some portion of system memory.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

11.0 ≤ v < 11.2212.0 ≤ v < 12.1713.0 ≤ v < 13.1314.0 ≤ v < 14.1015.0 ≤ v < 15.516.0
Affected range stops below 11.22, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.17, so it looks safe — our inference, not a vendor statement
Affected range stops below 13.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.5, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 0:13.13-1.el9_0 (unaffected)
Vendor states this is fixed in 0:13.13-1.el9_2 (unaffected)
Vendor states this is fixed in 0:13.13-1.el9_3 (unaffected)
Vendor states this is fixed in 8 (unaffected)
Vendor states this is fixed in 8020020231128165246.4cda2c84 (unaffected)
Vendor states this is fixed in 8040020231127153301.522a0ee4 (unaffected)
Vendor states this is fixed in 8040020231127154806.522a0ee4 (unaffected)
Vendor states this is fixed in 8060020231114115246.ad008a3a (unaffected)
Vendor states this is fixed in 8060020231128165328.ad008a3a (unaffected)
Vendor states this is fixed in 8080020231113134015.63b34585 (unaffected)
Vendor states this is fixed in 8080020231114105206.63b34585 (unaffected)
Vendor states this is fixed in 8080020231128165335.63b34585 (unaffected)
Vendor states this is fixed in 8090020231114113548.a75119d5 (unaffected)
Vendor states this is fixed in 8090020231114113712.a75119d5 (unaffected)
Vendor states this is fixed in 8090020231128173330.a75119d5 (unaffected)
Vendor states this is fixed in 9020020231115020618.rhel9 (unaffected)
Vendor states this is fixed in 9030020231120082734.rhel9 (unaffected)
Vendor states this is fixed in 6 (unknown)

References (27)

Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:7545
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:7579
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:7580
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:7581
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:7616
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:7656
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:7666
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:7667

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMredhat
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-686NVD-CWE-noinfo

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