USN-5354-1 fixed vulnerabilities in Twisted. This update provides the corresponding updates for Ubuntu 14.04 ESM, Ubuntu 16.04 ESM and Ubuntu 22.04 LTS.
Original advisory details:
It was discovered that Twisted incorrectly processed SSH handshake data on connection establishments. A remote attacker could use this issue to cause Twisted to crash, resulting in a denial of service. (CVE-2022-21716)
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"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5354-2.json"
{
"cves": [
{
"id": "CVE-2022-21716",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
],
"ecosystem": "Ubuntu:Pro:14.04:LTS"
}
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"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
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"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5354-2.json"
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},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
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{
"type": "Ubuntu",
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"ecosystem": "Ubuntu:Pro:16.04:LTS"
}
{
"binaries": [
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"binary_version": "22.1.0-2ubuntu2.1",
"binary_name": "python3-twisted"
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"availability": "No subscription required"
}
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5354-2.json"
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"id": "CVE-2022-21716",
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},
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"ecosystem": "Ubuntu:22.04:LTS"
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