Overview
- Description
- An issue was discovered in Squid before 4.12 and 5.x before 5.0.3. Due to use of a potentially dangerous function, Squid and the default certificate validation helper are vulnerable to a Denial of Service when opening a TLS connection to an attacker-controlled server for HTTPS. This occurs because unrecognized error values are mapped to NULL, but later code expects that each error value is mapped to a valid error string.
- Source
- cve@mitre.org
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 5
- Impact score
- 2.9
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
- nvd@nist.gov
- NVD-CWE-noinfo
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E3828B8E-1FF7-4707-BB24-6C7CABC37362",
"versionEndIncluding": "3.5.28",
"versionStartIncluding": "3.1"
},
{
"criteria": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C3430B4A-4E1E-438D-9C84-4CFED6A3F023",
"versionEndExcluding": "4.12",
"versionStartIncluding": "4.0"
},
{
"criteria": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "137B599B-80D1-4903-8791-40F11BC3FCD9",
"versionEndExcluding": "5.0.3",
"versionStartIncluding": "5.0"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "80F0FA5D-8D3B-4C0E-81E2-87998286AF33"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:netapp:cloud_manager:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "197D0D80-6702-4B61-B681-AFDBA7D69067"
}
],
"operator": "OR"
}
]
}
]