qpdf: out-of-bounds read in iterate_rc4 in QPDF_encryption.cc
Published Feb 13, 2018
5.5
MEDIUMCVSS 3.0
EPSS 0.67%
Description
An issue was discovered in QPDF before 7.0.0. There is a stack-based out-of-bounds read in the function iterate_rc4 in QPDF_encryption.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 | 0.67% (0.00668) | 50.07th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.67% (0.00668) | 50.43th | 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-2017-18184 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1545278 Issue Tracking
- https://github.com/qpdf/qpdf/commit/dea704f0ab7f625e1e7b3f9a1110b45b63157317 x_refsource_MISCPatchThird Party Advisory
- https://github.com/qpdf/qpdf/issues/147 x_refsource_MISCIssue TrackingThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-18184
- https://usn.ubuntu.com/3638-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2017-18184
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2017-18184 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1545278 | Issue Tracking | |
| https://github.com/qpdf/qpdf/commit/dea704f0ab7f625e1e7b3f9a1110b45b63157317 | x_refsource_MISCPatchThird Party Advisory | |
| https://github.com/qpdf/qpdf/issues/147 | x_refsource_MISCIssue TrackingThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-18184 | ||
| https://usn.ubuntu.com/3638-1/ | vendor-advisoryx_refsource_UBUNTU | |
| https://www.cve.org/CVERecord?id=CVE-2017-18184 |
Change history (0)
No recorded changes yet.