High
Security advisory
Perl before 5.30.3 on 32-bit platforms allows a heap-based buffer overflow because nested regular expression quantifiers have an integer overflow.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-10543
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:29 UTC · Revision 1
Source evidence
Perl before 5.30.3 on 32-bit platforms allows a heap-based buffer overflow because nested regular expression quantifiers have an integer overflow.
osv:CVE-2020-10543
Complete source record
{
"id": "64a0ea1467a4d14ce348ab96298914ff0c546895db24d1604a8cf1f544c52240",
"url": "https://osv.dev/vulnerability/CVE-2020-10543",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-10543",
"summary": "Perl before 5.30.3 on 32-bit platforms allows a heap-based buffer overflow because nested regular expression quantifiers have an integer overflow.",
"evidence": "osv:CVE-2020-10543",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-10543",
"aliases": [
"CVE-2020-10543"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/perl/perl5",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "65ddc30325817c6cd4df6ca1d4a1af2383875c3f"
},
{
"fixed": "897d1f7fd515b828e4b198d8b8bef76c6faf03ed"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:perl:perl:*:*:*:*:*:*:x86:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "5.30.3"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "897d1f7fd515b828e4b198d8b8bef76c6faf03ed"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"v5.30.2",
"v5.30.2-RC1",
"v5.30.1",
"v5.30.1-RC1",
"v5.30.0",
"v5.30.0-RC2",
"v5.30.0-RC1",
"v5.29.10",
"v5.29.9",
"v5.29.8",
"v5.29.7",
"v5.29.6",
"v5.29.5",
"v5.28.0",
"v5.29.1",
"v5.29.0",
"v5.28.0-RC4",
"v5.28.0-RC3",
"v5.28.0-RC2",
"v5.28.0-RC1",
"v5.27.11",
"v5.27.10",
"v5.27.8",
"v5.27.7",
"v5.27.6",
"v5.27.5",
"v5.27.3",
"v5.26.0",
"v5.27.0",
"v5.26.0-RC2",
"v5.25.11",
"v5.25.9",
"v5.25.7",
"v5.25.5",
"v5.25.4",
"v5.25.3",
"v5.24.0",
"v5.25.2",
"v5.25.0",
"v5.24.0-RC5",
"v5.24.0-RC4",
"v5.24.0-RC3",
"v5.24.0-RC2",
"v5.24.0-RC1",
"v5.23.7",
"v5.23.6",
"v5.23.4",
"v5.23.3",
"if-0.0605",
"v5.23.2",
"v5.23.1",
"v5.23.0",
"v5.22.0",
"v5.22.0-RC2",
"v5.22.0-RC1",
"v5.21.11",
"if-0.0604",
"v5.21.10",
"v5.21.9",
"v5.21.8",
"v5.21.6",
"v5.21.5",
"v5.21.4",
"v5.21.1",
"v5.21.0",
"v5.20.0",
"v5.20.0-RC1",
"v5.19.11",
"v5.19.7",
"v5.19.5",
"v5.19.3",
"v5.19.2",
"if-0.0603",
"v5.19.1",
"v5.18.0",
"v5.19.0",
"v5.18.0-RC4",
"v5.18.0-RC3",
"v5.18.0-RC2",
"v5.18.0-RC1",
"v5.17.9",
"v5.17.8",
"v5.17.7.0",
"v5.17.7",
"v5.17.6",
"v5.17.4",
"v5.17.2",
"v5.17.0",
"v5.16.0",
"v5.16.0-RC2",
"v5.16.0-RC1",
"v5.15.9",
"v5.15.5",
"v5.15.4",
"v5.15.3",
"v5.15.2",
"v5.15.1",
"v5.15.0",
"v5.14.0",
"v5.14.0-RC3",
"v5.14.0-RC2",
"v5.14.0-RC1",
"v5.13.11",
"v5.13.10",
"v5.13.9",
"v5.13.8",
"v5.13.7",
"v5.13.6",
"v5.13.5",
"v5.13.4",
"v5.13.3",
"v5.13.2",
"v5.13.1",
"v5.12.0",
"v5.13.0",
"v5.12.0-RC5",
"v5.12.0-RC4",
"v5.12.0-RC3",
"v5.12.0-RC2",
"v5.12.0-RC1",
"v5.12.0-RC0",
"v5.11.5",
"v5.11.4",
"v5.11.3",
"v5.11.1",
"v5.11.0",
"GitLive-blead",
"v5.10.0",
"perl-5.9.5",
"perl-5.9.4",
"perl-5.9.3",
"perl-5.9.2",
"perl-5.9.1",
"perl-5.9.0",
"perl-5.8.0",
"perl-5.7.3",
"perl-5.7.2",
"perl-5.7.1",
"perl-5.7.0",
"perl-5.6.0",
"perl-5.005",
"perl-5.003",
"perl-5.002_01",
"perl-5.002",
"perl-5.001n",
"perl-5.001",
"perl-5.000o",
"perl-5.000",
"perl-5a9",
"perl-5a2",
"perl-4.0.36",
"perl-4.0.00",
"perl-3.044",
"perl-3.000",
"perl-2.0",
"perl-1.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-10543.json",
"vanir_signatures": [
{
"id": "CVE-2020-10543-501f156b",
"digest": {
"length": 39449,
"function_hash": "188038057978112623465644672548025025841"
},
"source": "https://github.com/perl/perl5/commit/897d1f7fd515b828e4b198d8b8bef76c6faf03ed",
"target": {
"file": "regcomp.c",
"function": "S_study_chunk"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2020-10543-b76d07fc",
"digest": {
"threshold": 0.9,
"line_hashes": [
"326227367672465616021991049804010148793",
"15134703551330238417109193759520969772",
"336883495148109590279206088498136563982"
]
},
"source": "https://github.com/perl/perl5/commit/897d1f7fd515b828e4b198d8b8bef76c6faf03ed",
"target": {
"file": "regcomp.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:44:15Z"
}
}
],
"modified": "2026-10-20T13:44:15.470527977Z",
"provider": "osv",
"references": [
"https://cert-portal.siemens.com/productcert/html/ssa-398330.html",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IN3TTBO5KSGWE5IRIKDJ5JSQRH7ANNXE/",
"https://github.com/Perl/perl5/blob/blead/pod/perl5303delta.pod",
"https://github.com/Perl/perl5/compare/v5.30.2...v5.30.3",
"https://security.gentoo.org/glsa/202006-03",
"https://security.netapp.com/advisory/ntap-20200611-0001/",
"https://github.com/perl/perl5/commit/897d1f7fd515b828e4b198d8b8bef76c6faf03ed",
"https://www.oracle.com//security-alerts/cpujul2021.html",
"https://www.oracle.com/security-alerts/cpuApr2021.html",
"https://www.oracle.com/security-alerts/cpuapr2022.html",
"https://www.oracle.com/security-alerts/cpujan2021.html",
"https://www.oracle.com/security-alerts/cpujan2022.html",
"https://www.oracle.com/security-alerts/cpuoct2020.html",
"https://www.oracle.com/security-alerts/cpuoct2021.html"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:communications_diameter_signaling_router",
"extracted_events": [
{
"range": [
{
"introduced": "8.0.0"
},
{
"last_affected": "8.5.0"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:communications_eagle_application_processor:*:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:communications_eagle_application_processor",
"extracted_events": [
{
"range": [
{
"introduced": "16.1.0"
},
{
"last_affected": "16.4.0"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:communications_lsms:*:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:communications_lsms",
"extracted_events": [
{
"range": [
{
"introduced": "13.1"
},
{
"last_affected": "13.4"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:communications_performance_intelligence_center:*:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:communications_performance_intelligence_center",
"extracted_events": [
{
"range": [
{
"introduced": "10.3.0.0.0"
},
{
"last_affected": "10.3.0.2.1"
},
{
"introduced": "10.4.0.1.0"
},
{
"last_affected": "10.4.0.3.1"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:tekelec_platform_distribution:*:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:tekelec_platform_distribution",
"extracted_events": [
{
"range": [
{
"introduced": "7.4.0"
},
{
"last_affected": "7.7.1"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "31"
},
{
"last_affected": "31"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "15.1"
},
{
"last_affected": "15.1"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:communications_billing_and_revenue_management:12.0.0.2.0:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:communications_billing_and_revenue_management:12.0.0.3.0:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:communications_billing_and_revenue_management",
"extracted_events": [
{
"range": [
{
"introduced": "12.0.0.2.0"
},
{
"last_affected": "12.0.0.2.0"
},
{
"introduced": "12.0.0.3.0"
},
{
"last_affected": "12.0.0.3.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:communications_eagle_lnp_application_processor:10.1:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:communications_eagle_lnp_application_processor:10.2:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:communications_eagle_lnp_application_processor:46.7:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:communications_eagle_lnp_application_processor:46.8:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:communications_eagle_lnp_application_processor:46.9:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:communications_eagle_lnp_application_processor",
"extracted_events": [
{
"range": [
{
"introduced": "10.1"
},
{
"last_affected": "10.1"
},
{
"introduced": "10.2"
},
{
"last_affected": "10.2"
},
{
"introduced": "46.7"
},
{
"last_affected": "46.7"
},
{
"introduced": "46.8"
},
{
"last_affected": "46.8"
},
{
"introduced": "46.9"
},
{
"last_affected": "46.9"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:communications_offline_mediation_controller:12.0.0.3.0:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:communications_offline_mediation_controller",
"extracted_events": [
{
"range": [
{
"introduced": "12.0.0.3.0"
},
{
"last_affected": "12.0.0.3.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:communications_pricing_design_center:12.0.0.3.0:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:communications_pricing_design_center",
"extracted_events": [
{
"range": [
{
"introduced": "12.0.0.3.0"
},
{
"last_affected": "12.0.0.3.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:configuration_manager:12.1.2.0.8:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:configuration_manager",
"extracted_events": [
{
"range": [
{
"introduced": "12.1.2.0.8"
},
{
"last_affected": "12.1.2.0.8"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:enterprise_manager_base_platform:13.4.0.0:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:enterprise_manager_base_platform",
"extracted_events": [
{
"range": [
{
"introduced": "13.4.0.0"
},
{
"last_affected": "13.4.0.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:sd-wan_edge:8.2:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:sd-wan_edge:9.0:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:sd-wan_edge:9.1:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:sd-wan_edge",
"extracted_events": [
{
"range": [
{
"introduced": "8.2"
},
{
"last_affected": "8.2"
},
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
},
{
"introduced": "9.1"
},
{
"last_affected": "9.1"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-10543",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388006,
"published_at": "2020-06-05T14:15:10.467+00:00"
}