CVE-2025-4207 — Buffer Over-read in Postgresql-13

CWE-126 — Buffer Over-readCWE-416 — Use After Free9 documents7 sources
Severity
5.9MEDIUMNVD
EPSS
0.3%
top 44.36%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
12
Debian Postgresql-13Debian Postgresql-15Debian Postgresql-17+9 more
Timeline
PublishedMay 8
Latest updateMay 21

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 2.2 | Impact: 3.6

Affected Packages12 packages

▶debiandebian/postgresql-13< postgresql-13 13.21-0+deb11u1 (bullseye)
▶debiandebian/postgresql-15< postgresql-13 13.21-0+deb11u1 (bullseye)
▶debiandebian/postgresql-17< postgresql-13 13.21-0+deb11u1 (bullseye)

🔴Vulnerability Details

2
GHSA
GHSA-6x46-2273-xjjf: Buffer over-read in PostgreSQL GB18030 encoding validation allows a database input provider to achieve temporary denial of service on platforms where↗2025-05-08
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OSV
CVE-2025-4207: Buffer over-read in PostgreSQL GB18030 encoding validation allows a database input provider to achieve temporary denial of service on platforms where↗2025-05-08
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📋Vendor Advisories

6
Ubuntu
PostgreSQL vulnerability↗2025-05-21
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Ubuntu
PostgreSQL vulnerability↗2025-05-20
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Microsoft
PostgreSQL GB18030 encoding validation can read one byte past end of allocation for text that fails validation↗2025-05-13
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Red Hat
postgresql: PostgreSQL GB18030 encoding validation can read one byte past end of allocation for text that fails validation↗2025-05-08
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Debian
CVE-2025-4207: postgresql-13 - Buffer over-read in PostgreSQL GB18030 encoding validation allows a database inp...↗2025
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