CVE-2017-18185
An issue was discovered in QPDF before 7.0.0. There is a large heap-based out-of-bounds read in...
CVE-2017-18185 is a medium vulnerability (CVSS 5.5) in Qpdf Project Qpdf, published February 13, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.05%, the 64th percentile. Fixed in qpdf 7.0.0-1.
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2017-18185- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-125
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2017-18185- Updated
- 2026-11-02
EUVDEUVD-2017-9320 No score
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.
- Record
EUVD-2017-9320- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-36w8-h6xw-wxr6
An issue was discovered in QPDF before 7.0.0. There is a large heap-based out-of-bounds read in...
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.
- Record
GHSA-36w8-h6xw-wxr6- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2017-18185- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2017-18185
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.
- Record
DEBIAN-CVE-2017-18185- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2017-18185
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.
- Record
UBUNTU-CVE-2017-18185- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUSN-3638-1 No score
qpdf vulnerabilities
It was discovered that QPDF incorrectly handled certain malformed files. A remote attacker could use this issue to cause QPDF to crash, resulting in a denial of service, or possibly execute arbitrary code.
- Record
USN-3638-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
qpdfDebian:12 |
before 7.0.0-1 | 7.0.0-1 |
qpdfDebian:13 |
before 7.0.0-1 | 7.0.0-1 |
qpdfDebian:14 |
before 7.0.0-1 | 7.0.0-1 |
qpdfUbuntu:14.04:LTS |
before 8.0.2-3~14.04.1, plus listed versions 4.2.0-25.0.1-15.0.1-1ubuntu15.1.0-15.1.1-1 |
8.0.2-3~14.04.1 |
qpdfUbuntu:16.04:LTS |
before 8.0.2-3~16.04.1, plus listed versions 5.1.3-25.1.3-35.2.0-15.2.0-26.0.0-2 |
8.0.2-3~16.04.1 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |
References
github.com/qpdf/qpdf/commit/ec7d74a386c0b2f38990079c3b0d2a2b30be0e71
usn.ubuntu.com/3638-1
nvd.nist.gov/vuln/detail/CVE-2017-18185
security-tracker.debian.org/tracker/CVE-2017-18185
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ubuntu.com/security/CVE-2017-18185
cve.org/CVERecord?id=CVE-2017-18185