gsd-2021-20270
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
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.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-20270",
"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.",
"id": "GSD-2021-20270",
"references": [
"https://www.suse.com/security/cve/CVE-2021-20270.html",
"https://www.debian.org/security/2021/dsa-4889",
"https://www.debian.org/security/2021/dsa-4870",
"https://access.redhat.com/errata/RHSA-2021:4151",
"https://access.redhat.com/errata/RHSA-2021:4150",
"https://access.redhat.com/errata/RHSA-2021:4139",
"https://access.redhat.com/errata/RHSA-2021:3252",
"https://access.redhat.com/errata/RHSA-2021:0781",
"https://ubuntu.com/security/CVE-2021-20270",
"https://advisories.mageia.org/CVE-2021-20270.html",
"https://security.archlinux.org/CVE-2021-20270",
"https://linux.oracle.com/cve/CVE-2021-20270.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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"id": "GSD-2021-20270",
"modified": "2023-12-13T01:23:12.024924Z",
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}
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"gitlab.com": {
"advisories": [
{
"affected_range": "\u003e=1.5,\u003c=2.7.3",
"affected_versions": "All versions starting from 1.5 up to 2.7.3",
"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
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"cwe_ids": [
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"CWE-835",
"CWE-937"
],
"date": "2021-12-10",
"description": "An infinite loop in SMLLexer in Pygments to 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.",
"fixed_versions": [
"2.7.4"
],
"identifier": "CVE-2021-20270",
"identifiers": [
"CVE-2021-20270"
],
"not_impacted": "All versions before 1.5, all versions after 2.7.3",
"package_slug": "pypi/Pygments",
"pubdate": "2021-03-23",
"solution": "Upgrade to version 2.7.4 or above.",
"title": "Loop with Unreachable Exit Condition (Infinite Loop)",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2021-20270",
"https://bugzilla.redhat.com/show_bug.cgi?id=1922136"
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"uuid": "b759e08d-078f-4f78-bb74-aba1d933cd4b"
}
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"accessVector": "NETWORK",
"authentication": "NONE",
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"baseScore": 5.0,
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"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
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"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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},
"lastModifiedDate": "2021-12-10T17:04Z",
"publishedDate": "2021-03-23T17:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.