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CERTFR-2023-AVI-0612
Vulnerability from certfr_avis - Published: 2023-08-03 - Updated: 2023-08-03
De multiples vulnérabilités ont été découvertes dans Tenable Nessus. Elles permettent 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": "Nessus versions ant\u00e9rieures \u00e0 10.5.4",
"product": {
"name": "Nessus",
"vendor": {
"name": "Tenable",
"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-2023-3817",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-3817"
},
{
"name": "CVE-2023-3446",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-3446"
}
],
"initial_release_date": "2023-08-03T00:00:00",
"last_revision_date": "2023-08-03T00:00:00",
"links": [],
"reference": "CERTFR-2023-AVI-0612",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2023-08-03T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Tenable Nessus.\nElles permettent \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0\ndistance.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Tenable Nessus",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Tenable tns-2023-27 du 02 ao\u00fbt 2023",
"url": "https://www.tenable.com/security/tns-2023-27"
}
]
}
CVE-2023-3446 (GCVE-0-2023-3446)
Vulnerability from cvelistv5 – Published: 2023-07-19 11:31 – Updated: 2026-10-14 20:55
VLAI
EPSS
VEX
Title
Excessive time spent checking DH keys and parameters
Summary
Issue summary: Checking excessively long DH keys or parameters may be very slow.
Impact summary: Applications that use the functions DH_check(), DH_check_ex()
or EVP_PKEY_param_check() to check a DH key or DH parameters may experience long
delays. Where the key or parameters that are being checked have been obtained
from an untrusted source this may lead to a Denial of Service.
The function DH_check() performs various checks on DH parameters. One of those
checks confirms that the modulus ('p' parameter) is not too large. Trying to use
a very large modulus is slow and OpenSSL will not normally use a modulus which
is over 10,000 bits in length.
However the DH_check() function checks numerous aspects of the key or parameters
that have been supplied. Some of those checks use the supplied modulus value
even if it has already been found to be too large.
An application that calls DH_check() and supplies a key or parameters obtained
from an untrusted source could be vulernable to a Denial of Service attack.
The function DH_check() is itself called by a number of other OpenSSL functions.
An application calling any of those other functions may similarly be affected.
The other functions affected by this are DH_check_ex() and
EVP_PKEY_param_check().
Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications
when using the '-check' option.
The OpenSSL SSL/TLS implementation is not affected by this issue.
The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 13:26 UTC
CWE
- CWE-606 - Unchecked Input for Loop Condition
Assigner
References
22 references
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| OpenSSL | OpenSSL |
Affected:
3.1.0 , < 3.1.2
(semver)
Affected: 3.0.0 , < 3.0.10 (semver) Affected: 1.1.1 , < 1.1.1v (custom) Affected: 1.0.2 , < 1.0.2zi (custom) |
|
| Siemens | SIDIS Prime |
Affected:
0 , < V4.0.700
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < V1.1
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
Date Public
2023-07-13 00:00
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CVE-2023-3817 (GCVE-0-2023-3817)
Vulnerability from cvelistv5 – Published: 2023-07-31 15:34 – Updated: 2026-10-14 21:13
VLAI
EPSS
VEX
Title
Excessive time spent checking DH q parameter value
Summary
Issue summary: Checking excessively long DH keys or parameters may be very slow.
Impact summary: Applications that use the functions DH_check(), DH_check_ex()
or EVP_PKEY_param_check() to check a DH key or DH parameters may experience long
delays. Where the key or parameters that are being checked have been obtained
from an untrusted source this may lead to a Denial of Service.
The function DH_check() performs various checks on DH parameters. After fixing
CVE-2023-3446 it was discovered that a large q parameter value can also trigger
an overly long computation during some of these checks. A correct q value,
if present, cannot be larger than the modulus p parameter, thus it is
unnecessary to perform these checks if q is larger than p.
An application that calls DH_check() and supplies a key or parameters obtained
from an untrusted source could be vulnerable to a Denial of Service attack.
The function DH_check() is itself called by a number of other OpenSSL functions.
An application calling any of those other functions may similarly be affected.
The other functions affected by this are DH_check_ex() and
EVP_PKEY_param_check().
Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications
when using the "-check" option.
The OpenSSL SSL/TLS implementation is not affected by this issue.
The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 13:26 UTC
CWE
- CWE-606 - Unchecked Input for Loop Condition
Assigner
References
19 references
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| OpenSSL | OpenSSL |
Affected:
3.1.0 , < 3.1.2
(semver)
Affected: 3.0.0 , < 3.0.10 (semver) Affected: 1.1.1 , < 1.1.1v (custom) Affected: 1.0.2 , < 1.0.2zi (custom) |
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
Date Public
2023-07-31 00:00
Credits
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"url": "http://seclists.org/fulldisclosure/2023/Jul/43"
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"url": "http://www.openwall.com/lists/oss-security/2023/07/31/1"
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"url": "https://security.netapp.com/advisory/ntap-20230818-0014/"
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"url": "http://www.openwall.com/lists/oss-security/2023/09/22/9"
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"url": "http://www.openwall.com/lists/oss-security/2023/09/22/11"
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"url": "https://security.netapp.com/advisory/ntap-20231027-0008/"
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],
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"version": "3.1"
}
},
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{
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},
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},
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"shortName": "CISA-ADP"
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{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
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"status": "affected",
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"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
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{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-943925.html"
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"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
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"value": "Issue summary: Checking excessively long DH keys or parameters may be very slow.\u003cbr\u003e\u003cbr\u003eImpact summary: Applications that use the functions DH_check(), DH_check_ex()\u003cbr\u003eor EVP_PKEY_param_check() to check a DH key or DH parameters may experience long\u003cbr\u003edelays. Where the key or parameters that are being checked have been obtained\u003cbr\u003efrom an untrusted source this may lead to a Denial of Service.\u003cbr\u003e\u003cbr\u003eThe function DH_check() performs various checks on DH parameters. After fixing\u003cbr\u003eCVE-2023-3446 it was discovered that a large q parameter value can also trigger\u003cbr\u003ean overly long computation during some of these checks. A correct q value,\u003cbr\u003eif present, cannot be larger than the modulus p parameter, thus it is\u003cbr\u003eunnecessary to perform these checks if q is larger than p.\u003cbr\u003e\u003cbr\u003eAn application that calls DH_check() and supplies a key or parameters obtained\u003cbr\u003efrom an untrusted source could be vulnerable to a Denial of Service attack.\u003cbr\u003e\u003cbr\u003eThe function DH_check() is itself called by a number of other OpenSSL functions.\u003cbr\u003eAn application calling any of those other functions may similarly be affected.\u003cbr\u003eThe other functions affected by this are DH_check_ex() and\u003cbr\u003eEVP_PKEY_param_check().\u003cbr\u003e\u003cbr\u003eAlso vulnerable are the OpenSSL dhparam and pkeyparam command line applications\u003cbr\u003ewhen using the \"-check\" option.\u003cbr\u003e\u003cbr\u003eThe OpenSSL SSL/TLS implementation is not affected by this issue.\u003cbr\u003e\u003cbr\u003eThe OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue."
}
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}
],
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"url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=869ad69aadd985c7b8ca6f4e5dd0eb274c9f3644"
}
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"datePublished": "2023-07-31T15:34:13.627Z",
"dateReserved": "2023-07-21T08:47:25.638Z",
"dateUpdated": "2026-10-14T21:13:47.977Z",
"state": "PUBLISHED"
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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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.
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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.
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