SB2026031610 - Red Hat Enterprise Linux 9 update for postgresql
Published: March 16, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2026-2006)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to missing validation of multibyte character length. A remote user can send a specially crafted query to the application, trigger memory corruption and execute arbitrary code on the target system.
2) Type confusion (CVE-ID: CVE-2026-2004)
CWE-ID: CWE-843 - Type confusion
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to a type confusion error in intarray extension. A remote user can pass specially crafted data to the application, trigger a type confusion error and execute arbitrary code on the target system.
3) Heap-based buffer overflow (CVE-ID: CVE-2026-2005)
CWE-ID: CWE-122 - Heap-based Buffer Overflow
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in pgcrypto. A remote user can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Remediation
Install update from vendor's website.