CVE-2025-4207 — PostgreSQL GB18030 encoding validation can read one byte past end of allocation for text that fails validation

Description (CNA)

Buffer over-read in PostgreSQL GB18030 encoding validation allows a database input provider to achieve temporary denial of service on platforms where a 1-byte over-read can elicit process termination. This affects the database server and also libpq. Versions before PostgreSQL 17.5, 16.9, 15.13, 14.18, and 13.21 are affected.

Affected (CNA)

Vendor / product	Versions
n/a / PostgreSQL	affected 17 before 17.5; affected 16 before 16.9; affected 15 before 15.13; affected 14 before 14.18; affected 0 before 13.21

CWE

CWE-126

References

https://www.postgresql.org/support/security/CVE-2025-4207/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.

https://lists.debian.org/debian-lts-announce/2025/05/msg00011.html
http://www.openwall.com/lists/oss-security/2025/05/09/3