CVE-2021-20270
Published Mar 23, 2021
Last updated 3 years ago
Overview
- Description
- An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML (SML) source file, as demonstrated by input that only contains the "exception" keyword.
- Source
- secalert@redhat.com
- NVD status
- Analyzed
Social media
- Hype score
- Not currently trending
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
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:pygments:pygments:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EDBA76D7-FE9C-4C7F-9926-36D6A26F9713",
"versionEndIncluding": "2.7.3",
"versionStartIncluding": "1.5"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2F87326E-0B56-4356-A889-73D026DB1D4B"
},
{
"criteria": "cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "932D137F-528B-4526-9A89-CD59FA1AB0FE"
},
{
"criteria": "cpe:2.3:a:redhat:openstack_platform:10.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "542B31BD-5767-4B33-9201-40548D1223B3"
},
{
"criteria": "cpe:2.3:a:redhat:software_collections:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "749804DA-4B27-492A-9ABA-6BB562A6B3AC"
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A"
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
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"cpeMatch": [
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"vulnerable": true,
"matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"
}
],
"operator": "OR"
}
]
}
]