usn-8675-1
Vulnerability from osv_ubuntu
Published
2026-08-25 14:55
Modified
2026-08-25 14:55
Summary
perl vulnerabilities
Details
It was discovered that Perl incorrectly handled short source addresses in the Socket module. An attacker could possibly use this issue to trigger an out-of-bounds heap read, resulting in information disclosure. (CVE-2026-12087)
It was discovered that Perl incorrectly handled regular expressions containing a large number of fixed string alternatives. An attacker could possibly use this issue to cause incorrect regular expression matches, resulting in security restrictions being bypassed. (CVE-2026-13221)
It was discovered that Perl incorrectly handled certain large repeat counts when processing pack and unpack templates. An attacker could possibly use this issue to trigger an out-of-bounds heap read, resulting in information disclosure. (CVE-2026-57432)
It was discovered that Perl incorrectly handled certain crafted data when deserializing with the Storable module. An attacker could possibly use this issue to trigger an integer overflow and application termination, resulting in a denial of service. (CVE-2026-57433)
References
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-12087",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-13221",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-57432",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-57433",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:14.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libcgi-fast-perl",
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{
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{
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},
{
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},
{
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"binary_version": "5.18.2-2ubuntu1.7+esm8"
}
]
},
"package": {
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"name": "perl",
"purl": "pkg:deb/ubuntu/perl@5.18.2-2ubuntu1.7+esm8?arch=source\u0026distro=esm-infra-legacy/trusty"
},
"ranges": [
{
"events": [
{
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{
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],
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}
],
"versions": [
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"5.18.1-4",
"5.18.1-4build1",
"5.18.1-5",
"5.18.2-2",
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"5.18.2-2ubuntu1.1",
"5.18.2-2ubuntu1.3",
"5.18.2-2ubuntu1.4",
"5.18.2-2ubuntu1.6",
"5.18.2-2ubuntu1.7",
"5.18.2-2ubuntu1.7+esm3",
"5.18.2-2ubuntu1.7+esm4",
"5.18.2-2ubuntu1.7+esm5",
"5.18.2-2ubuntu1.7+esm7"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-12087",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-13221",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-57432",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-57433",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
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}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libperl5.22",
"binary_version": "5.22.1-9ubuntu0.9+esm3"
},
{
"binary_name": "perl",
"binary_version": "5.22.1-9ubuntu0.9+esm3"
},
{
"binary_name": "perl-base",
"binary_version": "5.22.1-9ubuntu0.9+esm3"
},
{
"binary_name": "perl-debug",
"binary_version": "5.22.1-9ubuntu0.9+esm3"
},
{
"binary_name": "perl-modules-5.22",
"binary_version": "5.22.1-9ubuntu0.9+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "perl",
"purl": "pkg:deb/ubuntu/perl@5.22.1-9ubuntu0.9+esm3?arch=source\u0026distro=esm-infra-legacy/xenial"
},
"ranges": [
{
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{
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},
{
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}
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"type": "ECOSYSTEM"
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],
"versions": [
"5.20.2-6",
"5.22.1-3",
"5.22.1-4",
"5.22.1-5",
"5.22.1-7",
"5.22.1-8",
"5.22.1-9",
"5.22.1-9ubuntu0.2",
"5.22.1-9ubuntu0.3",
"5.22.1-9ubuntu0.5",
"5.22.1-9ubuntu0.6",
"5.22.1-9ubuntu0.9",
"5.22.1-9ubuntu0.9+esm1",
"5.22.1-9ubuntu0.9+esm2"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-12087",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
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}
]
},
{
"id": "CVE-2026-13221",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-57432",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-57433",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libperl5.26",
"binary_version": "5.26.1-6ubuntu0.7+esm3"
},
{
"binary_name": "perl",
"binary_version": "5.26.1-6ubuntu0.7+esm3"
},
{
"binary_name": "perl-base",
"binary_version": "5.26.1-6ubuntu0.7+esm3"
},
{
"binary_name": "perl-debug",
"binary_version": "5.26.1-6ubuntu0.7+esm3"
},
{
"binary_name": "perl-modules-5.26",
"binary_version": "5.26.1-6ubuntu0.7+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "perl",
"purl": "pkg:deb/ubuntu/perl@5.26.1-6ubuntu0.7+esm3?arch=source\u0026distro=esm-infra/bionic"
},
"ranges": [
{
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{
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],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.26.0-8ubuntu1",
"5.26.1-2ubuntu1",
"5.26.1-3",
"5.26.1-4",
"5.26.1-4build1",
"5.26.1-5",
"5.26.1-6",
"5.26.1-6ubuntu0.1",
"5.26.1-6ubuntu0.2",
"5.26.1-6ubuntu0.3",
"5.26.1-6ubuntu0.5",
"5.26.1-6ubuntu0.6",
"5.26.1-6ubuntu0.7",
"5.26.1-6ubuntu0.7+esm2"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-12087",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-13221",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-57432",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-57433",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:20.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libperl5.30",
"binary_version": "5.30.0-9ubuntu0.5+esm3"
},
{
"binary_name": "perl",
"binary_version": "5.30.0-9ubuntu0.5+esm3"
},
{
"binary_name": "perl-base",
"binary_version": "5.30.0-9ubuntu0.5+esm3"
},
{
"binary_name": "perl-debug",
"binary_version": "5.30.0-9ubuntu0.5+esm3"
},
{
"binary_name": "perl-modules-5.30",
"binary_version": "5.30.0-9ubuntu0.5+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "perl",
"purl": "pkg:deb/ubuntu/perl@5.30.0-9ubuntu0.5+esm3?arch=source\u0026distro=esm-infra/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.30.0-9ubuntu0.5+esm3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.28.1-6build1",
"5.30.0-7",
"5.30.0-9",
"5.30.0-9build1",
"5.30.0-9ubuntu0.2",
"5.30.0-9ubuntu0.3",
"5.30.0-9ubuntu0.4",
"5.30.0-9ubuntu0.5",
"5.30.0-9ubuntu0.5+esm2"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-12087",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-13221",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-57432",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-57433",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:22.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libperl5.34",
"binary_version": "5.34.0-3ubuntu1.8"
},
{
"binary_name": "perl",
"binary_version": "5.34.0-3ubuntu1.8"
},
{
"binary_name": "perl-base",
"binary_version": "5.34.0-3ubuntu1.8"
},
{
"binary_name": "perl-debug",
"binary_version": "5.34.0-3ubuntu1.8"
},
{
"binary_name": "perl-modules-5.34",
"binary_version": "5.34.0-3ubuntu1.8"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "perl",
"purl": "pkg:deb/ubuntu/perl@5.34.0-3ubuntu1.8?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.34.0-3ubuntu1.8"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.32.1-3ubuntu3",
"5.34.0-3ubuntu1",
"5.34.0-3ubuntu1.1",
"5.34.0-3ubuntu1.2",
"5.34.0-3ubuntu1.3",
"5.34.0-3ubuntu1.4",
"5.34.0-3ubuntu1.5",
"5.34.0-3ubuntu1.7"
]
}
],
"aliases": [],
"details": "It was discovered that Perl incorrectly handled short source addresses\nin the Socket module. An attacker could possibly use this issue to\ntrigger an out-of-bounds heap read, resulting in information disclosure.\n(CVE-2026-12087)\n\nIt was discovered that Perl incorrectly handled regular expressions\ncontaining a large number of fixed string alternatives. An attacker\ncould possibly use this issue to cause incorrect regular expression\nmatches, resulting in security restrictions being bypassed.\n(CVE-2026-13221)\n\nIt was discovered that Perl incorrectly handled certain large repeat\ncounts when processing pack and unpack templates. An attacker could\npossibly use this issue to trigger an out-of-bounds heap read, resulting\nin information disclosure. (CVE-2026-57432)\n\nIt was discovered that Perl incorrectly handled certain crafted data\nwhen deserializing with the Storable module. An attacker could possibly\nuse this issue to trigger an integer overflow and application\ntermination, resulting in a denial of service. (CVE-2026-57433)",
"id": "USN-8675-1",
"modified": "2026-08-25T14:55:08Z",
"published": "2026-08-25T14:55:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8675-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-12087"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-13221"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-57432"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-57433"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "perl vulnerabilities",
"upstream": [
"UBUNTU-CVE-2026-12087",
"UBUNTU-CVE-2026-13221",
"UBUNTU-CVE-2026-57432",
"UBUNTU-CVE-2026-57433"
]
}
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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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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