ubuntu-cve-2019-20838
Vulnerability from osv_ubuntu
Published
2020-06-15 17:15
Modified
2026-04-22 07:39
Summary
Details
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.
Severity
7.5 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libpcre16-3",
"binary_version": "2:8.39-9ubuntu0.1"
},
{
"binary_name": "libpcre3",
"binary_version": "2:8.39-9ubuntu0.1"
},
{
"binary_name": "libpcre32-3",
"binary_version": "2:8.39-9ubuntu0.1"
},
{
"binary_name": "libpcrecpp0v5",
"binary_version": "2:8.39-9ubuntu0.1"
},
{
"binary_name": "pcregrep",
"binary_version": "2:8.39-9ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "pcre3",
"purl": "pkg:deb/ubuntu/pcre3@2:8.39-9ubuntu0.1?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2:8.39-9ubuntu0.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:8.39-5ubuntu3",
"2:8.39-8",
"2:8.39-9"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libpcre16-3",
"binary_version": "2:8.39-12ubuntu0.1"
},
{
"binary_name": "libpcre3",
"binary_version": "2:8.39-12ubuntu0.1"
},
{
"binary_name": "libpcre32-3",
"binary_version": "2:8.39-12ubuntu0.1"
},
{
"binary_name": "libpcrecpp0v5",
"binary_version": "2:8.39-12ubuntu0.1"
},
{
"binary_name": "pcregrep",
"binary_version": "2:8.39-12ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "pcre3",
"purl": "pkg:deb/ubuntu/pcre3@2:8.39-12ubuntu0.1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2:8.39-12ubuntu0.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:8.39-12",
"2:8.39-12build1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libpcre16-3",
"binary_version": "2:8.39-13ubuntu0.22.04.1"
},
{
"binary_name": "libpcre3",
"binary_version": "2:8.39-13ubuntu0.22.04.1"
},
{
"binary_name": "libpcre32-3",
"binary_version": "2:8.39-13ubuntu0.22.04.1"
},
{
"binary_name": "libpcrecpp0v5",
"binary_version": "2:8.39-13ubuntu0.22.04.1"
},
{
"binary_name": "pcregrep",
"binary_version": "2:8.39-13ubuntu0.22.04.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "pcre3",
"purl": "pkg:deb/ubuntu/pcre3@2:8.39-13ubuntu0.22.04.1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2:8.39-13ubuntu0.22.04.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:8.39-13build3",
"2:8.39-13build4",
"2:8.39-13build5"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libpcre16-3",
"binary_version": "2:8.39-15build1"
},
{
"binary_name": "libpcre3",
"binary_version": "2:8.39-15build1"
},
{
"binary_name": "libpcre32-3",
"binary_version": "2:8.39-15build1"
},
{
"binary_name": "libpcrecpp0v5",
"binary_version": "2:8.39-15build1"
},
{
"binary_name": "pcregrep",
"binary_version": "2:8.39-15build1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "pcre3",
"purl": "pkg:deb/ubuntu/pcre3@2:8.39-15build1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:8.39-15",
"2:8.39-15build1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libpcre16-3",
"binary_version": "2:8.39-15.1"
},
{
"binary_name": "libpcre3",
"binary_version": "2:8.39-15.1"
},
{
"binary_name": "libpcre32-3",
"binary_version": "2:8.39-15.1"
},
{
"binary_name": "libpcrecpp0v5",
"binary_version": "2:8.39-15.1"
},
{
"binary_name": "pcregrep",
"binary_version": "2:8.39-15.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "pcre3",
"purl": "pkg:deb/ubuntu/pcre3@2:8.39-15.1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:8.39-15.1"
]
}
],
"aliases": [],
"details": "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.",
"id": "UBUNTU-CVE-2019-20838",
"modified": "2026-04-22T07:39:15Z",
"published": "2020-06-15T17:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2019-20838"
},
{
"type": "REPORT",
"url": "https://www.pcre.org/original/changelog.txt"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5425-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-20838"
}
],
"related": [
"USN-5425-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2019-20838"
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…