When adding an external mail account, processing of SMTP "capabilities" responses are not limited to plausible sizes
Published Jun 20, 2023
4.3
MEDIUMCVSS 3.1
EPSS 1.15%
Description
When adding an external mail account, processing of SMTP "capabilities" responses are not limited to plausible sizes. Attacker with access to a rogue SMTP service could trigger requests that lead to excessive resource usage and eventually service unavailability. We now limit accepted SMTP server response to reasonable length/size. No publicly available exploits are known.
Affected products
-
- Version 0StatusaffectedConstraints<=7.10.6-rev39
- Version 0StatusaffectedConstraints<=8.10
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OX Software GmbH | OX App Suite | unaffected |
|
- < 7.10.6
- ≥ 8.0.0 · < 8.11.0
- 7.10.6
- 7.10.6
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Jan 19, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
Score over time
2023-2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 1.15% (0.01148) | 65.69th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.94% (0.00936) | 56.02th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.51% (0.00505) | 64.14th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.18% (0.00185) | 57.09th | v3 (v2023.03.01) |
| Jun 26, 2024 | 0.18% (0.00185) | 55.97th | v3 (v2023.03.01) |
| May 9, 2024 | 0.08% (0.00076) | 32.05th | v3 (v2023.03.01) |
| Jul 7, 2023 | 0.11% (0.00108) | 42.58th | v3 (v2023.03.01) |
| Jun 22, 2023 | 0.04% (0.00045) | 12.28th | v3 (v2023.03.01) |
| Jun 20, 2023 | 0.04% (0.00043) | 7.04th | v3 (v2023.03.01) |
References (4)
- http://packetstormsecurity.com/files/173083/OX-App-Suite-SSRF-Resource-Consumption-Command-Injection.html Third Party AdvisoryVDB Entry
- http://seclists.org/fulldisclosure/2023/Jun/8 Mailing ListThird Party Advisory
- https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0002.json vendor-advisory
- https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6219_7.10.6_2023-03-20.pdf release-notesRelease Notes
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.com/files/173083/OX-App-Suite-SSRF-Resource-Consumption-Command-Injection.html | Third Party AdvisoryVDB Entry | |
| http://seclists.org/fulldisclosure/2023/Jun/8 | Mailing ListThird Party Advisory | |
| https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0002.json | vendor-advisory | |
| https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6219_7.10.6_2023-03-20.pdf | release-notesRelease Notes |
Change history (0)
No recorded changes yet.