CVE-2020-10531

Source
https://cve.org/CVERecord?id=CVE-2020-10531
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-10531.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-10531
Aliases
Downstream
Related
Published
2020-03-12T19:15:13.227Z
Modified
2026-07-08T20:03:52.870406Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

An issue was discovered in International Components for Unicode (ICU) for C/C++ through 66.1. An integer overflow, leading to a heap-based buffer overflow, exists in the UnicodeString::doAppend() function in common/unistr.cpp.

Database specific
{
    "unresolved_ranges": [
        {
            "cpes": [
                "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "google:chrome",
            "extracted_events": [
                {
                    "fixed": "80.0.3987.122"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "cpes": [
                "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
                {
                    "introduced": "12.04"
                },
                {
                    "last_affected": "12.04"
                },
                {
                    "introduced": "14.04"
                },
                {
                    "last_affected": "14.04"
                },
                {
                    "introduced": "16.04"
                },
                {
                    "last_affected": "16.04"
                },
                {
                    "introduced": "18.04"
                },
                {
                    "last_affected": "18.04"
                },
                {
                    "introduced": "19.10"
                },
                {
                    "last_affected": "19.10"
                }
            ],
            "source": "CPE_STRING"
        },
        {
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
                {
                    "introduced": "8.0"
                },
                {
                    "last_affected": "8.0"
                },
                {
                    "introduced": "9.0"
                },
                {
                    "last_affected": "9.0"
                },
                {
                    "introduced": "10.0"
                },
                {
                    "last_affected": "10.0"
                }
            ],
            "source": "CPE_STRING"
        },
        {
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
                {
                    "introduced": "30"
                },
                {
                    "last_affected": "30"
                },
                {
                    "introduced": "31"
                },
                {
                    "last_affected": "31"
                },
                {
                    "introduced": "33"
                },
                {
                    "last_affected": "33"
                }
            ],
            "source": "CPE_STRING"
        },
        {
            "cpes": [
                "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"
            ],
            "vendor_product": "opensuse:leap",
            "extracted_events": [
                {
                    "introduced": "15.1"
                },
                {
                    "last_affected": "15.1"
                }
            ],
            "source": "CPE_STRING"
        },
        {
            "cpes": [
                "cpe:2.3:a:oracle:banking_extensibility_workbench:14.3.0:*:*:*:*:*:*:*",
                "cpe:2.3:a:oracle:banking_extensibility_workbench:14.4.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "oracle:banking_extensibility_workbench",
            "extracted_events": [
                {
                    "introduced": "14.3.0"
                },
                {
                    "last_affected": "14.3.0"
                },
                {
                    "introduced": "14.4.0"
                },
                {
                    "last_affected": "14.4.0"
                }
            ],
            "source": "CPE_STRING"
        },
        {
            "cpes": [
                "cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:enterprise_linux_desktop",
            "extracted_events": [
                {
                    "introduced": "6.0"
                },
                {
                    "last_affected": "6.0"
                }
            ],
            "source": "CPE_STRING"
        },
        {
            "cpes": [
                "cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:enterprise_linux_server",
            "extracted_events": [
                {
                    "introduced": "6.0"
                },
                {
                    "last_affected": "6.0"
                }
            ],
            "source": "CPE_STRING"
        },
        {
            "cpes": [
                "cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:enterprise_linux_workstation",
            "extracted_events": [
                {
                    "introduced": "6.0"
                },
                {
                    "last_affected": "6.0"
                }
            ],
            "source": "CPE_STRING"
        }
    ]
}
References

Affected packages

Git / github.com/nodejs/node

Affected ranges

Type
GIT
Repo
https://github.com/nodejs/node
Events
Database specific
{
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "10.0.0"
        },
        {
            "last_affected": "10.12.0"
        },
        {
            "introduced": "10.13.0"
        },
        {
            "fixed": "10.21.0"
        }
    ],
    "cpe": [
        "cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*",
        "cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*"
    ]
}

Affected versions

v10.*
v10.0.0
v10.1.0
v10.10.0
v10.11.0
v10.12.0
v10.13.0
v10.14.0
v10.14.1
v10.14.2
v10.15.0
v10.15.1
v10.15.2
v10.15.3
v10.16.0
v10.16.1
v10.16.2
v10.16.3
v10.17.0
v10.18.0
v10.18.1
v10.19.0
v10.2.0
v10.2.1
v10.20.0
v10.20.1
v10.3.0
v10.4.0
v10.4.1
v10.5.0
v10.6.0
v10.7.0
v10.8.0
v10.9.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-10531.json"

Git / github.com/unicode-org/icu

Affected ranges

Type
GIT
Repo
https://github.com/unicode-org/icu
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Fixed
Database specific
{
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "66.1"
        }
    ],
    "cpe": "cpe:2.3:a:icu-project:international_components_for_unicode:*:*:*:*:*:c\\/c\\+\\+:*:*"
}

Affected versions

Other
cldr-32-beta2
last-cvs-commit
last-svn-commit
milestone-59-0-1
milestone-60-0-1
release-59-rc
release-60-rc
release-61-rc
release-62-rc
release-63-rc
release-64-rc
release-65-rc
release-66-1
release-66-preview
release-66-rc

Database specific

vanir_signatures_modified
"2026-07-08T20:03:52Z"
vanir_signatures
[
    {
        "signature_version": "v1",
        "target": {
            "file": "icu4c/source/common/unistr.cpp"
        },
        "id": "CVE-2020-10531-073eef5e",
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "163326310584139620683127306141902484022",
                "53777311359894187782715740876739193896",
                "259529947505127728544220868421245451215",
                "275100226479365140411992926648193383127"
            ]
        },
        "source": "https://github.com/unicode-org/icu/commit/b7d08bc04a4296982fcef8b6b8a354a9e4e7afca"
    },
    {
        "signature_version": "v1",
        "target": {
            "file": "icu4c/source/common/unistr.cpp",
            "function": "UnicodeString::doAppend"
        },
        "id": "CVE-2020-10531-52deb174",
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "function_hash": "311203197988252367781213452935901397736",
            "length": 783.0
        },
        "source": "https://github.com/unicode-org/icu/commit/b7d08bc04a4296982fcef8b6b8a354a9e4e7afca"
    },
    {
        "signature_version": "v1",
        "target": {
            "file": "icu4c/source/test/intltest/ustrtest.cpp",
            "function": "UnicodeStringTest::runIndexedTest"
        },
        "id": "CVE-2020-10531-8aefd4ce",
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "function_hash": "282047263291457392771884626389331655576",
            "length": 1182.0
        },
        "source": "https://github.com/unicode-org/icu/commit/b7d08bc04a4296982fcef8b6b8a354a9e4e7afca"
    },
    {
        "signature_version": "v1",
        "target": {
            "file": "icu4c/source/test/intltest/ustrtest.cpp"
        },
        "id": "CVE-2020-10531-e4962e84",
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "281493051491934789897437676517916732519",
                "16536246155701564973448811408738863909",
                "170482884151252957689139896393908258054",
                "244202485545224852526398604846366360242",
                "297837186745196421493934701917911463958"
            ]
        },
        "source": "https://github.com/unicode-org/icu/commit/b7d08bc04a4296982fcef8b6b8a354a9e4e7afca"
    },
    {
        "signature_version": "v1",
        "target": {
            "file": "icu4c/source/test/intltest/ustrtest.h"
        },
        "id": "CVE-2020-10531-efe65e00",
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "176032011631701592212894972723462041867",
                "313180536602387946983383287883265241998",
                "253612880278707994326010847370624889941"
            ]
        },
        "source": "https://github.com/unicode-org/icu/commit/b7d08bc04a4296982fcef8b6b8a354a9e4e7afca"
    }
]
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-10531.json"