An issue was discovered in QPDF before 7.0.0.
Priority LOW 27CWE-125Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.
Summary
An issue was discovered in QPDF before 7.0.0. There is a large heap-based out-of-bounds read in the Pl_Buffer::write function in Pl_Buffer.cc. It is caused by an integer overflow in the PNG filter.
Why it matters now
EPSS 0.01055 64th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:qpdf_project:qpdf:*:*:*:*:*:*:*:* | before 7.0.0 | Vulnerable | Qpdf Project |
- cpe:2.3:a:qpdf_project:qpdf:*:*:*:*:*:*:*:* Versions before 7.0.0 Vulnerable ·Qpdf Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
Not affected: 1 product
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2017-18185
- 2026-10-03 Alias added: GHSA-36w8-h6xw-wxr6
References
More Qpdf Project Qpdf vulnerabilities
- TI-2024-16045 Heap Buffer Overflow vulnerability in qpdf 11.9.0 allows attackers to crash the… CVSS 3.1MEDIUM 5.5
- TI-2021-07868 An issue was discovered in QPDF version 10.0.4, allows remote attackers to execute… CVSS 3.1MEDIUM 5.3
- TI-2017-09321 The tokenizer in QPDF 6.0.0 and 7.0.b1 is recursive for arrays and dictionaries, which… CVSS 3.0HIGH 7.8
- TI-2018-07028 libqpdf.a in QPDF through 8.0.2 mishandles certain "expected dictionary key but found… CVSS 3.0HIGH 7.8
- TI-2022-15389 QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function… CVSS 3.1MEDIUM 6.5
- TI-2017-06661 libqpdf.a in QPDF 6.0.0 allows remote attackers to cause a denial of service (infinite… CVSS 3.0MEDIUM 5.5
Sources
- CVE-2017-18185 · CVE Program
- CVE-2017-18185 · NVD
- FIRST EPSS
- GHSA-36w8-h6xw-wxr6 · GitHub Advisory Database · CC BY 4.0
- CVE-2017-18185 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences