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HIGH

Postgresql: buffer overrun from integer overflow in array modification

Published Dec 10, 2023

Description

A flaw was found in PostgreSQL that allows authenticated database users to execute arbitrary code through missing overflow checks during SQL array value modification. This issue exists due to an integer overflow during array modification where a remote user can trigger the overflow by providing specially crafted data. This enables the execution of arbitrary code on the target system, allowing users to write arbitrary bytes to memory and extensively read the server's memory.

Affected products

Remediation

Vendor solution

Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.

Red Hat mitigation

Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.

Metrics

Weaknesses (1)

CWE-190

Integer Overflow

References (37)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Dec 10, 2023
Updated Mar 11, 2026
Reserved Oct 31, 2023
Link CVE-2023-5869
CISA Vulnrichment
Updated n/a
NVD
Status Modified
Modified Jun 17, 2026
Link CVE-2023-5869
Red Hat
Severity Important
Public date Nov 9, 2023
Links CVE-2023-5869 - Bugzilla