ubuntu-cve-2022-27781
Vulnerability from osv_ubuntu
Published
2022-05-11 00:00
Modified
2026-04-27 08:08
Summary
Details
libcurl provides the CURLOPT_CERTINFO option to allow applications torequest details to be returned about a server's certificate chain.Due to an erroneous function, a malicious server could make libcurl built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation. Due to an erroneous function, a malicious server could make libcurl built with NSS get stuck in a never-ending busy-loop when trying to retrieve that information.]
Severity
7.5 (High)
7.5 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "curl",
"binary_version": "7.35.0-1ubuntu2.20+esm11"
},
{
"binary_name": "libcurl3",
"binary_version": "7.35.0-1ubuntu2.20+esm11"
},
{
"binary_name": "libcurl3-gnutls",
"binary_version": "7.35.0-1ubuntu2.20+esm11"
},
{
"binary_name": "libcurl3-nss",
"binary_version": "7.35.0-1ubuntu2.20+esm11"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@7.35.0-1ubuntu2.20+esm11?arch=source\u0026distro=trusty/esm"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.35.0-1ubuntu2.20+esm11"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.32.0-1ubuntu1",
"7.33.0-1ubuntu1",
"7.34.0-1ubuntu1",
"7.35.0-1ubuntu1",
"7.35.0-1ubuntu2",
"7.35.0-1ubuntu2.1",
"7.35.0-1ubuntu2.2",
"7.35.0-1ubuntu2.3",
"7.35.0-1ubuntu2.5",
"7.35.0-1ubuntu2.6",
"7.35.0-1ubuntu2.7",
"7.35.0-1ubuntu2.8",
"7.35.0-1ubuntu2.9",
"7.35.0-1ubuntu2.10",
"7.35.0-1ubuntu2.11",
"7.35.0-1ubuntu2.12",
"7.35.0-1ubuntu2.13",
"7.35.0-1ubuntu2.14",
"7.35.0-1ubuntu2.15",
"7.35.0-1ubuntu2.16",
"7.35.0-1ubuntu2.17",
"7.35.0-1ubuntu2.19",
"7.35.0-1ubuntu2.20",
"7.35.0-1ubuntu2.20+esm2",
"7.35.0-1ubuntu2.20+esm3",
"7.35.0-1ubuntu2.20+esm4",
"7.35.0-1ubuntu2.20+esm5",
"7.35.0-1ubuntu2.20+esm6",
"7.35.0-1ubuntu2.20+esm7",
"7.35.0-1ubuntu2.20+esm8",
"7.35.0-1ubuntu2.20+esm9",
"7.35.0-1ubuntu2.20+esm10"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "curl",
"binary_version": "7.47.0-1ubuntu2.19+esm4"
},
{
"binary_name": "libcurl3",
"binary_version": "7.47.0-1ubuntu2.19+esm4"
},
{
"binary_name": "libcurl3-gnutls",
"binary_version": "7.47.0-1ubuntu2.19+esm4"
},
{
"binary_name": "libcurl3-nss",
"binary_version": "7.47.0-1ubuntu2.19+esm4"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@7.47.0-1ubuntu2.19+esm4?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.47.0-1ubuntu2.19+esm4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.43.0-1ubuntu2",
"7.45.0-1ubuntu1",
"7.46.0-1ubuntu1",
"7.47.0-1ubuntu1",
"7.47.0-1ubuntu2",
"7.47.0-1ubuntu2.1",
"7.47.0-1ubuntu2.2",
"7.47.0-1ubuntu2.3",
"7.47.0-1ubuntu2.4",
"7.47.0-1ubuntu2.5",
"7.47.0-1ubuntu2.6",
"7.47.0-1ubuntu2.7",
"7.47.0-1ubuntu2.8",
"7.47.0-1ubuntu2.9",
"7.47.0-1ubuntu2.11",
"7.47.0-1ubuntu2.12",
"7.47.0-1ubuntu2.13",
"7.47.0-1ubuntu2.14",
"7.47.0-1ubuntu2.15",
"7.47.0-1ubuntu2.16",
"7.47.0-1ubuntu2.18",
"7.47.0-1ubuntu2.19",
"7.47.0-1ubuntu2.19+esm1",
"7.47.0-1ubuntu2.19+esm2",
"7.47.0-1ubuntu2.19+esm3"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "curl",
"binary_version": "7.58.0-2ubuntu3.18"
},
{
"binary_name": "libcurl3-gnutls",
"binary_version": "7.58.0-2ubuntu3.18"
},
{
"binary_name": "libcurl3-nss",
"binary_version": "7.58.0-2ubuntu3.18"
},
{
"binary_name": "libcurl4",
"binary_version": "7.58.0-2ubuntu3.18"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@7.58.0-2ubuntu3.18?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.58.0-2ubuntu3.18"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.55.1-1ubuntu2",
"7.55.1-1ubuntu2.1",
"7.57.0-1ubuntu1",
"7.58.0-2ubuntu1",
"7.58.0-2ubuntu2",
"7.58.0-2ubuntu3",
"7.58.0-2ubuntu3.1",
"7.58.0-2ubuntu3.2",
"7.58.0-2ubuntu3.3",
"7.58.0-2ubuntu3.5",
"7.58.0-2ubuntu3.6",
"7.58.0-2ubuntu3.7",
"7.58.0-2ubuntu3.8",
"7.58.0-2ubuntu3.9",
"7.58.0-2ubuntu3.10",
"7.58.0-2ubuntu3.12",
"7.58.0-2ubuntu3.13",
"7.58.0-2ubuntu3.14",
"7.58.0-2ubuntu3.15",
"7.58.0-2ubuntu3.16",
"7.58.0-2ubuntu3.17"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "curl",
"binary_version": "7.68.0-1ubuntu2.11"
},
{
"binary_name": "libcurl3-gnutls",
"binary_version": "7.68.0-1ubuntu2.11"
},
{
"binary_name": "libcurl3-nss",
"binary_version": "7.68.0-1ubuntu2.11"
},
{
"binary_name": "libcurl4",
"binary_version": "7.68.0-1ubuntu2.11"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@7.68.0-1ubuntu2.11?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.68.0-1ubuntu2.11"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.65.3-1ubuntu3",
"7.65.3-1ubuntu4",
"7.66.0-1ubuntu1",
"7.67.0-2ubuntu1",
"7.68.0-1ubuntu1",
"7.68.0-1ubuntu2",
"7.68.0-1ubuntu2.1",
"7.68.0-1ubuntu2.2",
"7.68.0-1ubuntu2.4",
"7.68.0-1ubuntu2.5",
"7.68.0-1ubuntu2.6",
"7.68.0-1ubuntu2.7",
"7.68.0-1ubuntu2.10"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "curl",
"binary_version": "7.81.0-1ubuntu1.2"
},
{
"binary_name": "libcurl3-gnutls",
"binary_version": "7.81.0-1ubuntu1.2"
},
{
"binary_name": "libcurl3-nss",
"binary_version": "7.81.0-1ubuntu1.2"
},
{
"binary_name": "libcurl4",
"binary_version": "7.81.0-1ubuntu1.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@7.81.0-1ubuntu1.2?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.81.0-1ubuntu1.2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.74.0-1.3ubuntu2",
"7.74.0-1.3ubuntu3",
"7.80.0-3",
"7.81.0-1",
"7.81.0-1ubuntu1.1"
]
}
],
"aliases": [],
"details": "libcurl provides the `CURLOPT_CERTINFO` option to allow applications torequest details to be returned about a server\u0027s certificate chain.Due to an erroneous function, a malicious server could make libcurl built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation. Due to an erroneous function, a malicious server could make libcurl built with NSS get stuck in a never-ending busy-loop when trying to retrieve that information.]",
"id": "UBUNTU-CVE-2022-27781",
"modified": "2026-04-27T08:08:16Z",
"published": "2022-05-11T00:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2022-27781"
},
{
"type": "REPORT",
"url": "https://curl.se/docs/CVE-2022-27781.html"
},
{
"type": "REPORT",
"url": "https://github.com/curl/curl/commit/f6c335d63f"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5412-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5499-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-27781"
}
],
"related": [
"USN-5412-1",
"USN-5499-1"
],
"schema_version": "1.7.0",
"severity": [
{
"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": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2022-27781"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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