GSD-2021-28652
Vulnerability from gsd - Updated: 2023-12-13 01:23Details
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This attack is limited to clients with Cache Manager API access privilege.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-28652",
"description": "An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This attack is limited to clients with Cache Manager API access privilege.",
"id": "GSD-2021-28652",
"references": [
"https://www.suse.com/security/cve/CVE-2021-28652.html",
"https://www.debian.org/security/2021/dsa-4924",
"https://access.redhat.com/errata/RHSA-2021:4292",
"https://ubuntu.com/security/CVE-2021-28652",
"https://advisories.mageia.org/CVE-2021-28652.html",
"https://security.archlinux.org/CVE-2021-28652",
"https://linux.oracle.com/cve/CVE-2021-28652.html",
"https://alas.aws.amazon.com/cve/html/CVE-2021-28652.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-28652"
],
"details": "An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This attack is limited to clients with Cache Manager API access privilege.",
"id": "GSD-2021-28652",
"modified": "2023-12-13T01:23:29.069380Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-28652",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This attack is limited to clients with Cache Manager API access privilege."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://bugs.squid-cache.org/show_bug.cgi?id=5106",
"refsource": "MISC",
"url": "https://bugs.squid-cache.org/show_bug.cgi?id=5106"
},
{
"name": "https://github.com/squid-cache/squid/security/advisories/GHSA-m47m-9hvw-7447",
"refsource": "MISC",
"url": "https://github.com/squid-cache/squid/security/advisories/GHSA-m47m-9hvw-7447"
},
{
"name": "DSA-4924",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2021/dsa-4924"
},
{
"name": "FEDORA-2021-c0bec55ec7",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/"
},
{
"name": "FEDORA-2021-24af72ff2c",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/"
},
{
"name": "[debian-lts-announce] 20210614 [SECURITY] [DLA 2685-1] squid3 security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00014.html"
},
{
"name": "[oss-security] 20231011 Squid Caching Proxy Security Audit: 55 Vulnerabilities, 35 0days.",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2023/10/11/3"
},
{
"name": "20231016 Squid Caching Proxy Security Audit: 55 Vulnerabilities, 35 0days.",
"refsource": "FULLDISC",
"url": "http://seclists.org/fulldisclosure/2023/Oct/14"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "5.0.6",
"versionStartIncluding": "5.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "4.15",
"versionStartIncluding": "1.0",
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-28652"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This attack is limited to clients with Cache Manager API access privilege."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-401"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/squid-cache/squid/security/advisories/GHSA-m47m-9hvw-7447",
"refsource": "MISC",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/squid-cache/squid/security/advisories/GHSA-m47m-9hvw-7447"
},
{
"name": "https://bugs.squid-cache.org/show_bug.cgi?id=5106",
"refsource": "MISC",
"tags": [
"Exploit",
"Issue Tracking",
"Vendor Advisory"
],
"url": "https://bugs.squid-cache.org/show_bug.cgi?id=5106"
},
{
"name": "DSA-4924",
"refsource": "DEBIAN",
"tags": [
"Third Party Advisory"
],
"url": "https://www.debian.org/security/2021/dsa-4924"
},
{
"name": "FEDORA-2021-24af72ff2c",
"refsource": "FEDORA",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/"
},
{
"name": "FEDORA-2021-c0bec55ec7",
"refsource": "FEDORA",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/"
},
{
"name": "[debian-lts-announce] 20210614 [SECURITY] [DLA 2685-1] squid3 security update",
"refsource": "MLIST",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00014.html"
},
{
"name": "[oss-security] 20231011 Squid Caching Proxy Security Audit: 55 Vulnerabilities, 35 0days.",
"refsource": "MLIST",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2023/10/11/3"
},
{
"name": "20231016 Squid Caching Proxy Security Audit: 55 Vulnerabilities, 35 0days.",
"refsource": "FULLDISC",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://seclists.org/fulldisclosure/2023/Oct/14"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 4.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.2,
"impactScore": 3.6
}
},
"lastModifiedDate": "2023-10-24T14:46Z",
"publishedDate": "2021-05-27T12:15Z"
}
}
}
Loading…
Loading…
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.
Loading…
Loading…
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.
Loading…
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.
Loading…