High
cufflinks, libgclib and 3 more products — security advisory
An out-of-bounds access in GffLine::GffLine in gff.cpp in GCLib 0.12.7 allows an attacker to cause a segmentation fault or possibly have unspecified other impact via a crafted GFF file.
- Products
- cufflinks, libgclib, libgff, stringtie, tophat
- Affected versions
- 0.11.10+ds-2, 0.11.2-1, 0.11.2-3, 0.11.3-1, 0.11.4-1, 0.12.7+ds-4, 0.12.7+ds-5, 0.12.7+ds-5ubuntu2, 0.12.7+ds-5ubuntu3, 1.0-1, 1.0-1build1, 1.0-2, 1.3.6+dfsg-1, 2.0.0-1, 2.0.0-2, 2.0.0-3, 2.0.0-3build1, 2.0.4+ds-2, 2.0.4+ds-3, 2.0.5+ds-1, 2.1.0+dfsg-1build1, 2.1.1+dfsg-3, 2.1.1+dfsg-3build1, 2.1.1+dfsg1-1, 2.1.1+ds-2, 2.1.4+ds-4, 2.1.6+ds-1, 2.2.1+dfsg.1-10, 2.2.1+dfsg.1-1ubuntu1, 2.2.1+dfsg.1-2, 2.2.1+dfsg.1-4, 2.2.1+dfsg.1-4ubuntu1, 2.2.1+dfsg.1-4ubuntu2, 2.2.1+dfsg.1-5, 2.2.1+dfsg.1-7, 2.2.1+dfsg.1-8build1, 2.2.1+dfsg.1-9, 2.2.1+dfsg.1-9build1, 2.2.1+ds-2, 2.2.1+ds-3, 2.2.1+ds-3build1, 2.2.1+ds-3build2, 2.2.1-3build1, 3.0.3+ds-1
- Fixed versions
- Not specified
- CVEs
- CVE-2021-42006
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:54 UTC · Revision 1
Source evidence
An out-of-bounds access in GffLine::GffLine in gff.cpp in GCLib 0.12.7 allows an attacker to cause a segmentation fault or possibly have unspecified other impact via a crafted GFF file.
osv:UBUNTU-CVE-2021-42006
libgff
Fixed versions: Not specified
tophat
Fixed versions: Not specified
cufflinks
Fixed versions: Not specified
libgff
Fixed versions: Not specified
tophat
Fixed versions: Not specified
cufflinks
Fixed versions: Not specified
libgclib
Fixed versions: Not specified
libgff
Fixed versions: Not specified
stringtie
Fixed versions: Not specified
cufflinks
Fixed versions: Not specified
libgclib
Fixed versions: Not specified
libgff
Fixed versions: Not specified
stringtie
Fixed versions: Not specified
cufflinks
Fixed versions: Not specified
libgclib
Fixed versions: Not specified
libgff
Fixed versions: Not specified
stringtie
Fixed versions: Not specified
cufflinks
Fixed versions: Not specified
libgclib
Fixed versions: Not specified
libgff
Fixed versions: Not specified
stringtie
Fixed versions: Not specified
libgclib
Fixed versions: Not specified
libgff
Fixed versions: Not specified
stringtie
Fixed versions: Not specified
cufflinks
Fixed versions: Not specified
libgclib
Fixed versions: Not specified
libgff
Fixed versions: Not specified
stringtie
Fixed versions: Not specified
Complete source record
{
"id": "b56b9d296b2214bdd432f7a8781d4f19a1ec3aed4bc5597e954fd48420f79b03",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-42006",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2021-42006",
"summary": "An out-of-bounds access in GffLine::GffLine in gff.cpp in GCLib 0.12.7 allows an attacker to cause a segmentation fault or possibly have unspecified other impact via a crafted GFF file.",
"evidence": "osv:UBUNTU-CVE-2021-42006",
"products": [
{
"name": {
"value": "libgff",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.0-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "tophat",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.1.0+dfsg-1build1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "cufflinks",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.2.1-3build1",
"evidence": "/affected/2/versions"
},
{
"value": "2.2.1+dfsg.1-1ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "2.2.1+dfsg.1-2",
"evidence": "/affected/2/versions"
}
]
},
{
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{
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"evidence": "/affected/3/versions"
}
]
},
{
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"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.1.1+dfsg-3",
"evidence": "/affected/4/versions"
},
{
"value": "2.1.1+dfsg-3build1",
"evidence": "/affected/4/versions"
},
{
"value": "2.1.1+dfsg1-1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "cufflinks",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.2.1+dfsg.1-4",
"evidence": "/affected/5/versions"
},
{
"value": "2.2.1+dfsg.1-4ubuntu1",
"evidence": "/affected/5/versions"
},
{
"value": "2.2.1+dfsg.1-4ubuntu2",
"evidence": "/affected/5/versions"
},
{
"value": "2.2.1+dfsg.1-5",
"evidence": "/affected/5/versions"
},
{
"value": "2.2.1+dfsg.1-7",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "libgclib",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.11.2-1",
"evidence": "/affected/6/versions"
},
{
"value": "0.11.2-3",
"evidence": "/affected/6/versions"
},
{
"value": "0.11.3-1",
"evidence": "/affected/6/versions"
},
{
"value": "0.11.4-1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "libgff",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.0-2",
"evidence": "/affected/7/versions"
}
]
},
{
"name": {
"value": "stringtie",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.3.6+dfsg-1",
"evidence": "/affected/8/versions"
},
{
"value": "2.0.4+ds-2",
"evidence": "/affected/8/versions"
},
{
"value": "2.0.4+ds-3",
"evidence": "/affected/8/versions"
},
{
"value": "2.0.5+ds-1",
"evidence": "/affected/8/versions"
},
{
"value": "2.1.1+ds-2",
"evidence": "/affected/8/versions"
}
]
},
{
"name": {
"value": "cufflinks",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.2.1+dfsg.1-8build1",
"evidence": "/affected/9/versions"
},
{
"value": "2.2.1+dfsg.1-9",
"evidence": "/affected/9/versions"
}
]
},
{
"name": {
"value": "libgclib",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.11.10+ds-2",
"evidence": "/affected/10/versions"
},
{
"value": "0.12.7+ds-4",
"evidence": "/affected/10/versions"
}
]
},
{
"name": {
"value": "libgff",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.0.0-1",
"evidence": "/affected/11/versions"
},
{
"value": "2.0.0-2",
"evidence": "/affected/11/versions"
},
{
"value": "2.0.0-3",
"evidence": "/affected/11/versions"
}
]
},
{
"name": {
"value": "stringtie",
"evidence": "/affected/12/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.1.4+ds-4",
"evidence": "/affected/12/versions"
},
{
"value": "2.1.6+ds-1",
"evidence": "/affected/12/versions"
},
{
"value": "2.2.1+ds-2",
"evidence": "/affected/12/versions"
}
]
},
{
"name": {
"value": "cufflinks",
"evidence": "/affected/13/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.2.1+dfsg.1-9",
"evidence": "/affected/13/versions"
},
{
"value": "2.2.1+dfsg.1-9build1",
"evidence": "/affected/13/versions"
}
]
},
{
"name": {
"value": "libgclib",
"evidence": "/affected/14/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.12.7+ds-5",
"evidence": "/affected/14/versions"
},
{
"value": "0.12.7+ds-5ubuntu2",
"evidence": "/affected/14/versions"
},
{
"value": "0.12.7+ds-5ubuntu3",
"evidence": "/affected/14/versions"
}
]
},
{
"name": {
"value": "libgff",
"evidence": "/affected/15/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.0.0-3",
"evidence": "/affected/15/versions"
}
]
},
{
"name": {
"value": "stringtie",
"evidence": "/affected/16/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.2.1+ds-2",
"evidence": "/affected/16/versions"
},
{
"value": "2.2.1+ds-3",
"evidence": "/affected/16/versions"
},
{
"value": "2.2.1+ds-3build1",
"evidence": "/affected/16/versions"
},
{
"value": "2.2.1+ds-3build2",
"evidence": "/affected/16/versions"
}
]
},
{
"name": {
"value": "cufflinks",
"evidence": "/affected/17/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.2.1+dfsg.1-10",
"evidence": "/affected/17/versions"
}
]
},
{
"name": {
"value": "libgclib",
"evidence": "/affected/18/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.12.7+ds-5ubuntu3",
"evidence": "/affected/18/versions"
}
]
},
{
"name": {
"value": "libgff",
"evidence": "/affected/19/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.0.0-3",
"evidence": "/affected/19/versions"
}
]
},
{
"name": {
"value": "stringtie",
"evidence": "/affected/20/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.2.1+ds-3build2",
"evidence": "/affected/20/versions"
}
]
},
{
"name": {
"value": "libgclib",
"evidence": "/affected/21/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.12.7+ds-5ubuntu3",
"evidence": "/affected/21/versions"
}
]
},
{
"name": {
"value": "libgff",
"evidence": "/affected/22/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.0.0-3build1",
"evidence": "/affected/22/versions"
}
]
},
{
"name": {
"value": "stringtie",
"evidence": "/affected/23/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.0.3+ds-1",
"evidence": "/affected/23/versions"
}
]
},
{
"name": {
"value": "cufflinks",
"evidence": "/affected/24/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.2.1+dfsg.1-10",
"evidence": "/affected/24/versions"
}
]
},
{
"name": {
"value": "libgclib",
"evidence": "/affected/25/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.12.7+ds-5ubuntu3",
"evidence": "/affected/25/versions"
}
]
},
{
"name": {
"value": "libgff",
"evidence": "/affected/26/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.0.0-3",
"evidence": "/affected/26/versions"
},
{
"value": "2.0.0-3build1",
"evidence": "/affected/26/versions"
}
]
},
{
"name": {
"value": "stringtie",
"evidence": "/affected/27/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.2.1+ds-3build2",
"evidence": "/affected/27/versions"
},
{
"value": "3.0.3+ds-1",
"evidence": "/affected/27/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2021-42006",
"aliases": [
"UBUNTU-CVE-2021-42006"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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}
]
}
],
"package": {
"name": "libgff",
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"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"1.0-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42006.json"
},
"ecosystem_specific": {
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{
"binary_name": "libgff-dev",
"binary_version": "1.0-1"
}
]
}
},
{
"ranges": [
{
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}
]
}
],
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"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"2.1.0+dfsg-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42006.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "tophat",
"binary_version": "2.1.0+dfsg-1build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "cufflinks",
"purl": "pkg:deb/ubuntu/cufflinks?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"2.2.1-3build1",
"2.2.1+dfsg.1-1ubuntu1",
"2.2.1+dfsg.1-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42006.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "cufflinks",
"binary_version": "2.2.1+dfsg.1-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
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{
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}
]
}
],
"package": {
"name": "libgff",
"purl": "pkg:deb/ubuntu/libgff?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"1.0-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42006.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgff-dev",
"binary_version": "1.0-1build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "tophat",
"purl": "pkg:deb/ubuntu/tophat?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"2.1.1+dfsg-3",
"2.1.1+dfsg-3build1",
"2.1.1+dfsg1-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42006.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "tophat",
"binary_version": "2.1.1+dfsg1-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "cufflinks",
"purl": "pkg:deb/ubuntu/cufflinks?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"2.2.1+dfsg.1-4",
"2.2.1+dfsg.1-4ubuntu1",
"2.2.1+dfsg.1-4ubuntu2",
"2.2.1+dfsg.1-5",
"2.2.1+dfsg.1-7"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42006.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "cufflinks",
"binary_version": "2.2.1+dfsg.1-7"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libgclib",
"purl": "pkg:deb/ubuntu/libgclib?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"0.11.2-1",
"0.11.2-3",
"0.11.3-1",
"0.11.4-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42006.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgclib1",
"binary_version": "0.11.4-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libgff",
"purl": "pkg:deb/ubuntu/libgff?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"1.0-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42006.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgff-dev",
"binary_version": "1.0-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "stringtie",
"purl": "pkg:deb/ubuntu/stringtie?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"1.3.6+dfsg-1",
"2.0.4+ds-2",
"2.0.4+ds-3",
"2.0.5+ds-1",
"2.1.1+ds-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42006.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "stringtie",
"binary_version": "2.1.1+ds-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "cufflinks",
"purl": "pkg:deb/ubuntu/cufflinks?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"2.2.1+dfsg.1-8build1",
"2.2.1+dfsg.1-9"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42006.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "cufflinks",
"binary_version": "2.2.1+dfsg.1-9"
}
]
}
},
{
"ranges": [
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],
"modified": "2026-10-17T12:56:15.430436534Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2021-42006",
"https://github.com/gpertea/gclib/issues/11",
"https://www.cve.org/CVERecord?id=CVE-2021-42006"
]
},
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{
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"evidence": "/upstream"
}
],
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"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 355055,
"published_at": "2021-10-04T23:15:00+00:00"
}