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CERTFR-2020-AVI-235
Vulnerability from certfr_avis
Une vulnérabilité a été découverte dans OpenSSL. Elle permet à un attaquant de provoquer un déni de service à distance.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneReferences
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "OpenSSL versions ant\u00e9rieures \u00e0 1.1.1g",
"product": {
"name": "OpenSSL",
"vendor": {
"name": "OpenSSL",
"scada": false
}
}
}
],
"affected_systems_content": null,
"content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
"cves": [
{
"name": "CVE-2020-1967",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-1967"
}
],
"initial_release_date": "2020-04-22T00:00:00",
"last_revision_date": "2020-04-22T00:00:00",
"links": [],
"reference": "CERTFR-2020-AVI-235",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2020-04-22T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
}
],
"summary": "Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans OpenSSL. Elle permet \u00e0 un\nattaquant de provoquer un d\u00e9ni de service \u00e0 distance.\n",
"title": "Vuln\u00e9rabilit\u00e9 dans OpenSSL",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 OpenSSL 20200421 du 21 avril 2020",
"url": "https://www.openssl.org/news/secadv/20200421.txt"
}
]
}
CVE-2020-1967 (GCVE-0-2020-1967)
Vulnerability from cvelistv5
Published
2020-04-21 13:45
Modified
2024-09-17 03:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- NULL pointer dereference
Summary
Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f).
References
Impacted products
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},
{
"name": "20200501 CVE-2020-1967: proving sigalg != NULL",
"refsource": "FULLDISC",
"url": "http://seclists.org/fulldisclosure/2020/May/5"
},
{
"name": "FEDORA-2020-d7b29838f6",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EXDDAOWSAIEFQNBHWYE6PPYFV4QXGMCD/"
},
{
"name": "openSUSE-SU-2020:0933",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00004.html"
},
{
"name": "openSUSE-SU-2020:0945",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00011.html"
},
{
"name": "https://www.oracle.com/security-alerts/cpujul2020.html",
"refsource": "MISC",
"url": "https://www.oracle.com/security-alerts/cpujul2020.html"
},
{
"name": "https://www.tenable.com/security/tns-2020-03",
"refsource": "CONFIRM",
"url": "https://www.tenable.com/security/tns-2020-03"
},
{
"name": "https://www.openssl.org/news/secadv/20200421.txt",
"refsource": "CONFIRM",
"url": "https://www.openssl.org/news/secadv/20200421.txt"
},
{
"name": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=eb563247aef3e83dda7679c43f9649270462e5b1",
"refsource": "CONFIRM",
"url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=eb563247aef3e83dda7679c43f9649270462e5b1"
},
{
"name": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44440",
"refsource": "CONFIRM",
"url": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44440"
},
{
"name": "https://security.netapp.com/advisory/ntap-20200424-0003/",
"refsource": "CONFIRM",
"url": "https://security.netapp.com/advisory/ntap-20200424-0003/"
},
{
"name": "https://www.synology.com/security/advisory/Synology_SA_20_05_OpenSSL",
"refsource": "CONFIRM",
"url": "https://www.synology.com/security/advisory/Synology_SA_20_05_OpenSSL"
},
{
"name": "https://github.com/irsl/CVE-2020-1967",
"refsource": "MISC",
"url": "https://github.com/irsl/CVE-2020-1967"
},
{
"name": "http://packetstormsecurity.com/files/157527/OpenSSL-signature_algorithms_cert-Denial-Of-Service.html",
"refsource": "MISC",
"url": "http://packetstormsecurity.com/files/157527/OpenSSL-signature_algorithms_cert-Denial-Of-Service.html"
},
{
"name": "https://www.synology.com/security/advisory/Synology_SA_20_05",
"refsource": "CONFIRM",
"url": "https://www.synology.com/security/advisory/Synology_SA_20_05"
},
{
"name": "https://www.tenable.com/security/tns-2020-04",
"refsource": "CONFIRM",
"url": "https://www.tenable.com/security/tns-2020-04"
},
{
"name": "https://www.oracle.com/security-alerts/cpuoct2020.html",
"refsource": "MISC",
"url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
},
{
"name": "https://security.netapp.com/advisory/ntap-20200717-0004/",
"refsource": "CONFIRM",
"url": "https://security.netapp.com/advisory/ntap-20200717-0004/"
},
{
"name": "https://www.oracle.com/security-alerts/cpujan2021.html",
"refsource": "MISC",
"url": "https://www.oracle.com/security-alerts/cpujan2021.html"
},
{
"name": "https://www.tenable.com/security/tns-2020-11",
"refsource": "CONFIRM",
"url": "https://www.tenable.com/security/tns-2020-11"
},
{
"name": "https://www.oracle.com/security-alerts/cpuApr2021.html",
"refsource": "MISC",
"url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
},
{
"name": "https://www.tenable.com/security/tns-2021-10",
"refsource": "CONFIRM",
"url": "https://www.tenable.com/security/tns-2021-10"
},
{
"name": "https://www.oracle.com//security-alerts/cpujul2021.html",
"refsource": "MISC",
"url": "https://www.oracle.com//security-alerts/cpujul2021.html"
},
{
"name": "https://www.oracle.com/security-alerts/cpuoct2021.html",
"refsource": "MISC",
"url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
"assignerShortName": "openssl",
"cveId": "CVE-2020-1967",
"datePublished": "2020-04-21T13:45:15.136203Z",
"dateReserved": "2019-12-03T00:00:00",
"dateUpdated": "2024-09-17T03:13:46.200Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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.
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