It was discovered that Composer did not properly sanitize URLs for Mercurial repositories in the root composer.json and package source download URLs. A remote attacker could possibly use this issue to execute arbitrary code.
{
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
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{
"cves": [
{
"id": "CVE-2021-29472",
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{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
],
"ecosystem": "Ubuntu:Pro:16.04:LTS"
}
{
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
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{
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{
"cves": [
{
"id": "CVE-2021-29472",
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{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
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}
]
}
],
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{
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
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{
"cves": [
{
"id": "CVE-2021-29472",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
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}
]
}
],
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}