qpdf: infinite loop due to looping xref tables in QPDF.cc
Published Feb 13, 2018
5.5
MEDIUMCVSS 3.0
EPSS 1.12%
Description
An issue was discovered in QPDF before 7.0.0. There is an infinite loop due to looping xref tables in QPDF.cc.
Affected products
No data.
- < 7.0.0
No data.
Red Hat Enterprise Linux 7
qpdf
Will not fix
Red Hat Enterprise Linux 8
qpdf
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | qpdf | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | qpdf | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.12% (0.01123) | 65.00th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.12% (0.01123) | 64.77th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.11% (0.00115) | 45.74th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.11% (0.00115) | 45.69th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00115) | 43.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.83% (0.00833) | 24.58th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
References (7)
- https://access.redhat.com/security/cve/CVE-2017-18186 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1545288 Issue Tracking
- https://github.com/qpdf/qpdf/commit/85f05cc57ffa0a863d9d9b23e73acea9410b2937 x_refsource_MISCThird Party Advisory
- https://github.com/qpdf/qpdf/issues/149 x_refsource_MISCThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-18186
- https://usn.ubuntu.com/3638-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2017-18186
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2017-18186 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1545288 | Issue Tracking | |
| https://github.com/qpdf/qpdf/commit/85f05cc57ffa0a863d9d9b23e73acea9410b2937 | x_refsource_MISCThird Party Advisory | |
| https://github.com/qpdf/qpdf/issues/149 | x_refsource_MISCThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-18186 | ||
| https://usn.ubuntu.com/3638-1/ | vendor-advisoryx_refsource_UBUNTU | |
| https://www.cve.org/CVERecord?id=CVE-2017-18186 |
Change history (0)
No recorded changes yet.