🛡️ CVE-2023-39417 — debian-linux
Description
Postgresql: extension script @substitutions@ within quoting allow sql injection
IN THE EXTENSION SCRIPT, a SQL Injection vulnerability was found in PostgreSQL if it uses @extowner@, @extschema@, or @extschema:...@ inside a quoting construct (dollar quoting, '', or ""). If an administrator has installed files of a vulnerable, trusted, non-bundled extension, an attacker with database-level CREATE privilege can execute arbitrary code as the bootstrap superuser.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is high, 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 high, integrity high, availability high.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack vector: Network — reachable from anywhere that can route to the service.
- Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
- 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: High — total loss, or loss the attacker controls.
- Integrity impact: High — total loss, or loss the attacker controls.
- Availability impact: High — total loss, or loss the attacker controls.
Weakness class
CVE-2023-39417 is classified as CWE-89: SQL Injection. Untrusted input is concatenated into an SQL statement, letting an attacker change the query and reach data the request should not return.
Affected software
CVE-2023-39417 is recorded against 4 packages.
- debian-linux
- enterprise-linux
- postgresql
- software-collections
Timeline and source
Published on 11 August 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.
References
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Other advisories for this package
debian-linux has other advisories on record. If you are patching this one, these are worth checking on the same host:
- CVE-2026-12996 (8.1 High, published 30 Jul 2026)
- CVE-2026-14355 (5.6 Medium, published 3 Jul 2026)
- CVE-2026-56968 (3.7 Low, published 23 Jun 2026)
- CVE-2026-49975 (7.5 High, published 8 Jun 2026)
- CVE-2026-9256 (8.1 High, published 22 May 2026)
- CVE-2026-46333 (7.1 High, published 15 May 2026)
- CVE-2026-31431 (7.8 High, published 22 Apr 2026)
- CVE-2026-41082 (7.3 High, published 16 Apr 2026)
Same weakness in other software
These advisories are the same class of weakness (CWE-89: SQL Injection) in other software:
- CVE-2022-45786 (8.1 High, published 7 Jul 2026)
- CVE-2022-41703 (5.0 Medium, published 7 Jul 2026)
- CVE-2022-25506 (6.5 Medium, published 2 Jul 2026)
- CVE-2019-25710 (8.0 High, published 12 Apr 2026)
- CVE-2020-36947 (8.0 High, published 27 Jan 2026)
- CVE-2021-47763 (8.0 High, published 15 Jan 2026)
- CVE-2022-50895 (9.8 Critical, published 13 Jan 2026)
- CVE-2022-50894 (6.5 Medium, published 13 Jan 2026)
CVE-2023-39417 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:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| debian-linux | — | — |
| enterprise-linux | — | — |
| postgresql | — | — |
| software-collections | — | — |
References
Similar Threats
- Critical CVE-2022-0194
- High CVE-2022-0367
- Medium CVE-2022-0171
- High CVE-2022-0135
- High CVE-2022-0204
Site Security Check
Is debian-linux part of your stack?
CVE-2023-39417 is rated CVSS 8.0 High. BotEraser scans your installation against known CVE records and tells you whether this vulnerability applies to the versions you actually run.
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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.
