High
pcre3 — security advisory
libpcre in PCRE before 8.43 allows a subject buffer over-read in JIT when UTF is disabled, and \X or \R has more than one fixed quantifier, a related issue to CVE-2019-20454.
- Products
- pcre3
- Affected versions
- 2:8.39-15, 2:8.39-15.1
- Fixed versions
- Not specified
- CVEs
- CVE-2019-20838
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 11:08 UTC · Revision 1
Source evidence
libpcre in PCRE before 8.43 allows a subject buffer over-read in JIT when UTF is disabled, and \X or \R has more than one fixed quantifier, a related issue to CVE-2019-20454.
osv:DEBIAN-CVE-2019-20838
pcre3
Fixed versions: Not specified
Complete source record
{
"id": "af7350b015cdb6e368dcc86a54f84dc8bcfd10a498d20e0ec2f46e6666240d7f",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2019-20838",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2019-20838",
"summary": "libpcre in PCRE before 8.43 allows a subject buffer over-read in JIT when UTF is disabled, and \\X or \\R has more than one fixed quantifier, a related issue to CVE-2019-20454.",
"evidence": "osv:DEBIAN-CVE-2019-20838",
"products": [
{
"name": {
"value": "pcre3",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2:8.39-15",
"evidence": "/affected/0/versions"
},
{
"value": "2:8.39-15.1",
"evidence": "/affected/0/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2019-20838",
"aliases": [
"DEBIAN-CVE-2019-20838"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "pcre3",
"purl": "pkg:deb/debian/pcre3?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"2:8.39-15",
"2:8.39-15.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-20838.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
}
],
"modified": "2026-10-09T09:47:31.418911440Z",
"provider": "osv",
"upstream": [
"CVE-2019-20838"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2019-20838"
]
},
"related_cves": [
{
"value": "CVE-2019-20838",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 111611,
"published_at": "2020-06-15T17:15:09.683+00:00"
}