USN-5300-1 fixed vulnerabilities in PHP. This update provides the corresponding updates for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.
Original advisory details:
It was discovered that PHP incorrectly handled certain scripts. An attacker could possibly use this issue to cause a denial of service. (CVE-2015-9253, CVE-2017-8923, CVE-2017-9118, CVE-2017-9120)
It was discovered that PHP incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service, or possibly obtain sensitive information. (CVE-2017-9119)
It was discovered that PHP incorrectly handled certain scripts with XML parsing functions. An attacker could possibly use this issue to obtain sensitive information. (CVE-2021-21707)
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          {
    "cves": [
        {
            "id": "CVE-2017-8923",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
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                    "score": "low",
                    "type": "Ubuntu"
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            "id": "CVE-2017-9118",
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                    "type": "CVSS_V3"
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                {
                    "score": "medium",
                    "type": "Ubuntu"
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            "id": "CVE-2017-9119",
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                    "type": "CVSS_V3"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
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            "id": "CVE-2017-9120",
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                    "type": "CVSS_V3"
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                {
                    "score": "medium",
                    "type": "Ubuntu"
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            "id": "CVE-2021-21707",
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                    "type": "CVSS_V3"
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                {
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                    "type": "Ubuntu"
                }
            ]
        }
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                    "type": "CVSS_V3"
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                    "type": "Ubuntu"
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            "id": "CVE-2017-9118",
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            "id": "CVE-2017-9119",
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                    "type": "CVSS_V3"
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                    "score": "low",
                    "type": "Ubuntu"
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            "id": "CVE-2017-9120",
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                    "type": "CVSS_V3"
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                    "score": "medium",
                    "type": "Ubuntu"
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        {
            "id": "CVE-2021-21707",
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                    "type": "CVSS_V3"
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                    "type": "CVSS_V3"
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                    "score": "low",
                    "type": "Ubuntu"
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