CERTA-2008-AVI-562

Vulnerability from certfr_avis - Published: - Updated:

Deux vulnérabilités de Libxml2 permettent à un utilisateur malveillant la réalisation d'un déni de service à distance ou d'exécuter du code arbitraire à distance.

Description

Une première vulnérabilité provient d'un débordement d'entier dans la fonction xmlSAX2Characters(). Elle est exploitable par un utilisateur malveillant pour exécuter du code arbitraire à distance.

Une deuxième vulnérabilité, dans la fonction xmlBufferResize(), peut être exploitée pour provoquer une boucle infinie.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Libxml2 2.x.

Impacted products
Vendor Product Description

Show details on source website

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [],
  "affected_systems_content": "\u003cp\u003eLibxml2 2.x.\u003c/p\u003e",
  "content": "## Description\n\nUne premi\u00e8re vuln\u00e9rabilit\u00e9 provient d\u0027un d\u00e9bordement d\u0027entier dans la\nfonction xmlSAX2Characters(). Elle est exploitable par un utilisateur\nmalveillant pour ex\u00e9cuter du code arbitraire \u00e0 distance.\n\nUne deuxi\u00e8me vuln\u00e9rabilit\u00e9, dans la fonction xmlBufferResize(), peut\n\u00eatre exploit\u00e9e pour provoquer une boucle infinie.\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-2008-4226",
      "url": "https://www.cve.org/CVERecord?id=CVE-2008-4226"
    },
    {
      "name": "CVE-2008-4225",
      "url": "https://www.cve.org/CVERecord?id=CVE-2008-4225"
    }
  ],
  "links": [
    {
      "title": "Bulletin de s\u00e9curit\u00e9 s\u00e9curit\u00e9 Fedora 8 FEDORA-2008-9729 du    19 novembre 2008 :",
      "url": "https://www.redhat.com/archives/fedora-package-announce/2008-November/msg00472.html"
    },
    {
      "title": "Bulletin de s\u00e9curit\u00e9 Debian DSA-1666-1 du 17 novembre 2008    :",
      "url": "http://www.debian.org/security/2008/dsa-1666"
    },
    {
      "title": "Bulletin de s\u00e9curit\u00e9 s\u00e9curit\u00e9 Fedora 9 FEDORA-2008-9773 du    19 novembre 2008 :",
      "url": "https://www.redhat.com/archives/fedora-package-announce/2008-November/msg00513.html"
    },
    {
      "title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-673-1 du 19 novembre 2008 :",
      "url": "http://www.ubuntulinux.org/usn/usn-673-1"
    },
    {
      "title": "Bulletin de s\u00e9curit\u00e9 RedHat RHSA-2008:0988 du 17 novembre    2008 :",
      "url": "http://rhn.redhat.com/errata/RHSA-2008-0988.html"
    }
  ],
  "reference": "CERTA-2008-AVI-562",
  "revisions": [
    {
      "description": "version initiale.",
      "revision_date": "2008-11-20T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service \u00e0 distance"
    },
    {
      "description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
    }
  ],
  "summary": "Deux vuln\u00e9rabilit\u00e9s de Libxml2 permettent \u00e0 un utilisateur malveillant\nla r\u00e9alisation d\u0027un d\u00e9ni de service \u00e0 distance ou d\u0027ex\u00e9cuter du code\narbitraire \u00e0 distance.\n",
  "title": "Vuln\u00e9rabilit\u00e9s de Libxml2",
  "vendor_advisories": [
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 RedHat RHSA-2008:0988 du 17 novembre 2008",
      "url": null
    }
  ]
}


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Sightings

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  • 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.
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  • 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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