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CERTA-2008-AVI-020
Vulnerability from certfr_avis - Published: - Updated:
De multiples vulnérabilités affectent FreeBSD. Ces vulnérabilités peuvent être exploitées afin d'exécuter des commandes arbitraires à distance ou accéder à des informations sensibles en local.
Description
Trois vulnérabilités ont été découvertes dans FreeBSD :
- la première résulte d'une erreur de gestion de limite de boucle (off-by-one) au niveau de la fonction inet_network(). Cette vulnérabilité peut être exploitée à distance par un utilisateur malintentionné afin d'exécuter du code ;
- la seconde est due à une erreur dans la fonction openpty(). Cette vulnérabilité peut être exploitée en local afin d'accéder à des informations confidentielles pour un utilisateur standard ;
- enfin, la dernière vulnérabilité est due à une erreur dans le fonction ptsname(). Cette vulnérabilité peut être exploitée en local afin de devenir propriétaire d'un pty à accès restreint.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
FreeBSD 6.x.
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\u003eFreeBSD 6.x.\u003c/p\u003e",
"content": "## Description\n\nTrois vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans FreeBSD :\n\n- la premi\u00e8re r\u00e9sulte d\u0027une erreur de gestion de limite de boucle\n (off-by-one) au niveau de la fonction inet_network(). Cette\n vuln\u00e9rabilit\u00e9 peut \u00eatre exploit\u00e9e \u00e0 distance par un utilisateur\n malintentionn\u00e9 afin d\u0027ex\u00e9cuter du code ;\n- la seconde est due \u00e0 une erreur dans la fonction openpty(). Cette\n vuln\u00e9rabilit\u00e9 peut \u00eatre exploit\u00e9e en local afin d\u0027acc\u00e9der \u00e0 des\n informations confidentielles pour un utilisateur standard ;\n- enfin, la derni\u00e8re vuln\u00e9rabilit\u00e9 est due \u00e0 une erreur dans le\n fonction ptsname(). Cette vuln\u00e9rabilit\u00e9 peut \u00eatre exploit\u00e9e en local\n afin de devenir propri\u00e9taire d\u0027un pty \u00e0 acc\u00e8s restreint.\n\n## 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-2008-0216",
"url": "https://www.cve.org/CVERecord?id=CVE-2008-0216"
},
{
"name": "CVE-2008-0122",
"url": "https://www.cve.org/CVERecord?id=CVE-2008-0122"
},
{
"name": "CVE-2008-0217",
"url": "https://www.cve.org/CVERecord?id=CVE-2008-0217"
}
],
"links": [
{
"title": "Bulletin de s\u00e9curit\u00e9 FreeBSD SA-08:01.pty du 14 janvier 2008 :",
"url": "ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-08:01.pty.asc"
},
{
"title": "Bulletin de s\u00e9curit\u00e9 FreeBSD SA-08:02.libc du 14 janvier 2008 :",
"url": "ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-08:02.libc.asc"
}
],
"reference": "CERTA-2008-AVI-020",
"revisions": [
{
"description": "version initiale.",
"revision_date": "2008-01-15T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s affectent FreeBSD. Ces vuln\u00e9rabilit\u00e9s\npeuvent \u00eatre exploit\u00e9es afin d\u0027ex\u00e9cuter des commandes arbitraires \u00e0\ndistance ou acc\u00e9der \u00e0 des informations sensibles en local.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s de FreeBSD",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletins de s\u00e9curit\u00e9 FreeBSD du 14 janvier 2008",
"url": null
}
]
}
CVE-2008-0122 (GCVE-0-2008-0122)
Vulnerability from cvelistv5 – Published: 2008-01-16 01:00 – Updated: 2024-08-07 07:32
VLAI?
EPSS
Summary
Off-by-one error in the inet_network function in libbind in ISC BIND 9.4.2 and earlier, as used in libc in FreeBSD 6.2 through 7.0-PRERELEASE, allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted input that triggers memory corruption.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2008-0217 (GCVE-0-2008-0217)
Vulnerability from cvelistv5 – Published: 2008-01-16 01:00 – Updated: 2024-08-07 07:39
VLAI?
EPSS
Summary
The script program in FreeBSD 5.0 through 7.0-PRERELEASE invokes openpty, which creates a pseudo-terminal with world-readable and world-writable permissions when it is not run as root, which allows local users to read data from the terminal of the user running script.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2008-0216 (GCVE-0-2008-0216)
Vulnerability from cvelistv5 – Published: 2008-01-16 01:00 – Updated: 2024-08-07 07:39
VLAI?
EPSS
Summary
The ptsname function in FreeBSD 6.0 through 7.0-PRERELEASE does not properly verify that a certain portion of a device name is associated with a pty of a user who is calling the pt_chown function, which might allow local users to read data from the pty from another user.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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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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