Medium
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2017-18184
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:12 UTC · Revision 1
Source evidence
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.
osv:CVE-2017-18184
Complete source record
{
"id": "e7abdd6738282c95488fb3af393bc35dfa886fec3af718ffa7cf0785a2054954",
"url": "https://osv.dev/vulnerability/CVE-2017-18184",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2017-18184",
"summary": "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.",
"evidence": "osv:CVE-2017-18184",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2017-18184",
"aliases": [
"CVE-2017-18184"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/qpdf/qpdf",
"type": "GIT",
"events": [
{
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},
{
"fixed": "0f1ce8e6461d417d1fed2ea4a0cbf27f10ee4eff"
},
{
"fixed": "dea704f0ab7f625e1e7b3f9a1110b45b63157317"
}
],
"database_specific": {
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"range": [
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{
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},
{
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"source": "REFERENCES_COMMIT"
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}
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"release-qpdf-5.1.2",
"release-qpdf-5.1.1",
"release-qpdf-5.1.0",
"release-qpdf-5.0.1",
"release-qpdf-5.0.0",
"release-qpdf-4.2.0",
"release-qpdf-4.1.0",
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"release-qpdf-3.0.2",
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"release-qpdf-2.3.1",
"release-qpdf-2.3.0",
"release-qpdf-2.2.4",
"release-qpdf-2.2.3",
"release-qpdf-2.2.2",
"release-qpdf-2.2.1",
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"release-qpdf-2.1.3",
"release-qpdf-2.1.2",
"release-qpdf-2.1.1",
"release-qpdf-2.1",
"release-qpdf-2.1.rc1",
"release-qpdf-2.0.6",
"release-qpdf-2.0.5",
"release-qpdf-2.0.4",
"release-qpdf-2.0.3",
"release-qpdf-2.0.2",
"release-qpdf-2.0.1",
"release-qpdf-2.0"
],
"database_specific": {
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"function": "QPDF::initializeEncryption"
},
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"function": "compute_O_value"
},
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{
"id": "CVE-2017-18184-7ca418ba",
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"function": "check_owner_password_V4"
},
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{
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"vanir_signatures_modified": "2026-10-20T13:21:16Z"
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],
"modified": "2026-10-20T13:21:16.707276555Z",
"provider": "osv",
"references": [
"https://usn.ubuntu.com/3638-1/",
"https://github.com/qpdf/qpdf/issues/147",
"https://github.com/qpdf/qpdf/commit/dea704f0ab7f625e1e7b3f9a1110b45b63157317"
],
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"evidence": "/id"
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},
"source_id": "core-osv",
"document_id": 387556,
"published_at": "2018-02-13T19:29:00.37+00:00"
}