🛡️ CVE-2023-5868 — codeready-linux-builder-eus
Description
Postgresql: memory disclosure in aggregate function calls
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.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability none.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Attack vector: Network — reachable from anywhere that can route to the service.
- Attack complexity: Low — the attack works reliably, with no preparation.
- Privileges required: Low — an ordinary user account is enough.
- User interaction: None — nobody has to be tricked into anything.
- Scope: Unchanged — the damage stays inside the vulnerable component.
- Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
- Integrity impact: None.
- Availability impact: None.
Weakness class
CVE-2023-5868 is classified as CWE-686: Function Call With Incorrect Argument Type. The product calls a function, procedure, or routine, but the caller specifies an argument that is the wrong data type, which may lead to resultant weaknesses.
Affected software
CVE-2023-5868 is recorded against 16 packages.
- codeready-linux-builder-eus
- codeready-linux-builder-eus-for-power-little-endian-eus
- codeready-linux-builder-for-arm64-eus
- codeready-linux-builder-for-ibm-z-systems-eus
- codeready-linux-builder-for-power-little-endian-eus
- enterprise-linux
- enterprise-linux-eus
- enterprise-linux-for-arm-64
- enterprise-linux-for-ibm-z-systems
- enterprise-linux-for-ibm-z-systems-eus
- enterprise-linux-for-power-little-endian
- enterprise-linux-for-power-little-endian-eus
- enterprise-linux-server-aus
- enterprise-linux-server-tus
- postgresql
- software-collections
Timeline and source
Published on 10 December 2023 and last revised on 23 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.
References
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bugzilla.redhat.com
www.postgresql.org
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Other advisories for this package
codeready-linux-builder-eus has other advisories on record. If you are patching this one, these are worth checking on the same host:
- CVE-2025-1756 (7.5 High, published 27 Feb 2025)
- CVE-2023-3758 (7.1 High, published 18 Apr 2024)
- CVE-2024-1488 (8.0 High, published 15 Feb 2024)
- CVE-2023-6536 (6.5 Medium, published 7 Feb 2024)
- CVE-2023-6535 (6.5 Medium, published 7 Feb 2024)
- CVE-2023-6356 (6.5 Medium, published 7 Feb 2024)
- CVE-2023-5870 (2.2 Low, published 10 Dec 2023)
- CVE-2023-5869 (8.8 High, published 10 Dec 2023)
Same weakness in other software
These advisories are the same class of weakness (CWE-686: Function Call With Incorrect Argument Type) in other software:
- CVE-2026-33783 (6.5 Medium, published 9 Apr 2026)
- CVE-2024-32632 (6.6 Medium, published 16 Apr 2024)
CVE-2023-5868 on other distributions
Each distribution ships its own build and its own fixed version. Pick the one you run:
Details
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| codeready-linux-builder-eus | — | — |
| codeready-linux-builder-eus-for-power-little-endian-eus | — | — |
| codeready-linux-builder-for-arm64-eus | — | — |
| codeready-linux-builder-for-ibm-z-systems-eus | — | — |
| codeready-linux-builder-for-power-little-endian-eus | — | — |
| enterprise-linux | — | — |
| enterprise-linux-eus | — | — |
| enterprise-linux-for-arm-64 | — | — |
| enterprise-linux-for-ibm-z-systems | — | — |
| enterprise-linux-for-ibm-z-systems-eus | — | — |
| enterprise-linux-for-power-little-endian | — | — |
| enterprise-linux-for-power-little-endian-eus | — | — |
| enterprise-linux-server-aus | — | — |
| enterprise-linux-server-tus | — | — |
| postgresql | — | — |
| software-collections | — | — |
References
Similar Threats
- High CVE-2025-1756
- High CVE-2023-3758
- High CVE-2024-1488
- Medium CVE-2023-6356
- Medium CVE-2023-6535
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