certfr_avis - CERTA-2011-AVI-592

CERTA-2011-AVI-592

Vulnerability from certfr_avis - Published: - Updated:

Des vulnérabilités dans Linux-PAM permettent à un utilisateur malveillant de provoquer un déni de service ou d'élever ses privilèges et d'exécuter du code arbitraire.

Description

La gestion par le module PAM (pluggable authentication module) des variables et des fichiers d'environnement présente des vulnérabilités. Elles permettent à un utilisateur malveillant de provoquer un déni de service par épuisement de ressources ou d'élever ses privilèges à la suite d'un débordement mémoire et d'exécuter du code avec les droits d'administration.

Solution

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

Linux-PAM 1.x.

Impacted products

	Vendor	Product	Description

References

Title

Publication Time

Tags

Bulletin de sécurité Debian DSA 2326 du 24 octobre 2011	None	vendor-advisory
Bulletin de sécurité Ubuntu USN-1237-1 du 24 octobre 2011 :	-	other

Show details on source website

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{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [],
  "affected_systems_content": "\u003cp\u003eLinux-PAM 1.x.\u003c/p\u003e",
  "content": "## Description\n\nLa gestion par le module PAM (pluggable authentication module) des\nvariables et des fichiers d\u0027environnement pr\u00e9sente des vuln\u00e9rabilit\u00e9s.\nElles permettent \u00e0 un utilisateur malveillant de provoquer un d\u00e9ni de\nservice par \u00e9puisement de ressources ou d\u0027\u00e9lever ses privil\u00e8ges \u00e0 la\nsuite d\u0027un d\u00e9bordement m\u00e9moire et d\u0027ex\u00e9cuter du code avec les droits\nd\u0027administration.\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-2011-3148",
      "url": "https://www.cve.org/CVERecord?id=CVE-2011-3148"
    },
    {
      "name": "CVE-2011-3149",
      "url": "https://www.cve.org/CVERecord?id=CVE-2011-3149"
    }
  ],
  "links": [
    {
      "title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-1237-1 du 24 octobre 2011 :",
      "url": "http://www.ubuntulinux.org/usn/usn-1237-1"
    }
  ],
  "reference": "CERTA-2011-AVI-592",
  "revisions": [
    {
      "description": "version initiale.",
      "revision_date": "2011-10-26T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Ex\u00e9cution de code arbitraire"
    },
    {
      "description": "D\u00e9ni de service"
    },
    {
      "description": "\u00c9l\u00e9vation de privil\u00e8ges"
    }
  ],
  "summary": "Des vuln\u00e9rabilit\u00e9s dans Linux-PAM permettent \u00e0 un utilisateur\nmalveillant de provoquer un d\u00e9ni de service ou d\u0027\u00e9lever ses privil\u00e8ges\net d\u0027ex\u00e9cuter du code arbitraire.\n",
  "title": "Vuln\u00e9rabilit\u00e9s dans Linux-PAM",
  "vendor_advisories": [
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 Debian DSA 2326 du 24 octobre 2011",
      "url": "http://www.debian.org/security/2011/dsa-2326"
    }
  ]
}

CVE-2011-3149 (GCVE-0-2011-3149)

Vulnerability from cvelistv5 – Published: 2012-07-22 17:00 – Updated: 2024-08-06 23:22

Summary

The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5 does not properly handle when environment variable expansion can overflow, which allows local users to cause a denial of service (CPU consumption).

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	http://security.gentoo.org/glsa/glsa-201206-31.xml	vendor-advisoryx_refsource_GENTOO
	http://www.ubuntu.com/usn/USN-1237-1	vendor-advisoryx_refsource_UBUNTU
	http://secunia.com/advisories/46583	third-party-advisoryx_refsource_SECUNIA
	http://secunia.com/advisories/49711	third-party-advisoryx_refsource_SECUNIA
	https://bugs.launchpad.net/ubuntu/+source/pam/+bu…	x_refsource_CONFIRM
	http://git.fedorahosted.org/git/?p=linux-pam.git%…	x_refsource_CONFIRM

Show details on NVD website

JSON

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CVE-2011-3148 (GCVE-0-2011-3148)

Vulnerability from cvelistv5 – Published: 2012-07-22 17:00 – Updated: 2024-08-06 23:22

Summary

Stack-based buffer overflow in the _assemble_line function in modules/pam_env/pam_env.c in Linux-PAM (aka pam) before 1.1.5 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via a long string of white spaces at the beginning of the ~/.pam_environment file.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://bugs.launchpad.net/ubuntu/+source/pam/+bu…	x_refsource_CONFIRM
	http://security.gentoo.org/glsa/glsa-201206-31.xml	vendor-advisoryx_refsource_GENTOO
	http://www.ubuntu.com/usn/USN-1237-1	vendor-advisoryx_refsource_UBUNTU
	http://secunia.com/advisories/46583	third-party-advisoryx_refsource_SECUNIA
	http://secunia.com/advisories/49711	third-party-advisoryx_refsource_SECUNIA
	http://git.fedorahosted.org/git/?p=linux-pam.git%…	x_refsource_CONFIRM

Show details on NVD website

JSON

To clipboard

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Tags

Taxonomy of the tags.

All sightings related to this event Export sightings related to this event

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CERTA-2011-AVI-592

Description

Solution

CVE-2011-3149 (GCVE-0-2011-3149)

CVE-2011-3148 (GCVE-0-2011-3148)

Tags

Sightings

Nomenclature