CERTA-2005-AVI-241
Vulnerability from certfr_avis - Published: 2005-07-01 - Updated: 2005-07-01None
Description
Il a été découvert deux vulnérabilités dans la pile TCP de FreeBSD.
Lorsque la pile TCP reçoit un paquet contenant un marqueur de temps
(timestamp), le contrôle du numéro de séquence n'est pas fait
convenablement, ce qui permet à un attaquant d'augmenter de façon
artificielle le marqueur horaire ``recent'' d'une connexion.
La seconde vulnérabilité permet à un attaquant de modifier certaines
options TCP, via un paquet possédant le drapeau SYN positionné.
Solution
Appliquer les directives de l'éditeur (Cf. Documentation).
Toutes les versions de FreeBSD.
Impacted products
| Vendor | Product | Description |
|---|
References
| Title | Publication Time | Tags | ||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [],
"affected_systems_content": "\u003cp\u003eToutes les versions de FreeBSD.\u003c/p\u003e",
"content": "## Description\n\nIl a \u00e9t\u00e9 d\u00e9couvert deux vuln\u00e9rabilit\u00e9s dans la pile TCP de FreeBSD. \nLorsque la pile TCP re\u00e7oit un paquet contenant un marqueur de temps\n(timestamp), le contr\u00f4le du num\u00e9ro de s\u00e9quence n\u0027est pas fait\nconvenablement, ce qui permet \u00e0 un attaquant d\u0027augmenter de fa\u00e7on\nartificielle le marqueur horaire \\`\\`recent\u0027\u0027 d\u0027une connexion. \nLa seconde vuln\u00e9rabilit\u00e9 permet \u00e0 un attaquant de modifier certaines\noptions TCP, via un paquet poss\u00e9dant le drapeau SYN positionn\u00e9.\n\n## Solution\n\nAppliquer les directives de l\u0027\u00e9diteur (Cf. Documentation).\n",
"cves": [],
"initial_release_date": "2005-07-01T00:00:00",
"last_revision_date": "2005-07-01T00:00:00",
"links": [
{
"title": "Bulletin de s\u00e9curit\u00e9 de FreeBSD du 29 juin 2005 :",
"url": "ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:15.tcp.asc"
}
],
"reference": "CERTA-2005-AVI-241",
"revisions": [
{
"description": "version initiale.",
"revision_date": "2005-07-01T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service"
}
],
"summary": null,
"title": "Vuln\u00e9rabilit\u00e9s dans la pile \u003cTT\u003eTCP\u003c/TT\u003e de FreeBSD",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur du",
"url": null
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
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.
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