Vulnerability-Lookup

GHSA-4PGC-F487-53CR

Vulnerability from github – Published: 2022-05-13 01:53 – Updated: 2022-05-13 01:53

Details

Apport does not properly handle crashes originating from a PID namespace allowing local users to create certain files as root which an attacker could leverage to perform a denial of service via resource exhaustion, possibly gain root privileges, or escape from containers. The is_same_ns() function returns True when /proc// does not exist in order to indicate that the crash should be handled in the global namespace rather than inside of a container. However, the portion of the data/apport code that decides whether or not to forward a crash to a container does not always replace sys.argv[1] with the value stored in the host_pid variable when /proc// does not exist which results in the container pid being used in the global namespace. This flaw affects versions 2.20.8-0ubuntu4 through 2.20.9-0ubuntu7, 2.20.7-0ubuntu3.7, 2.20.7-0ubuntu3.8, 2.20.1-0ubuntu2.15 through 2.20.1-0ubuntu2.17, and 2.14.1-0ubuntu3.28.

Severity ?

7.8 (High)


                  
                    CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2018-6552"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-05-31T22:29:00Z",
    "severity": "HIGH"
  },
  "details": "Apport does not properly handle crashes originating from a PID namespace allowing local users to create certain files as root which an attacker could leverage to perform a denial of service via resource exhaustion, possibly gain root privileges, or escape from containers. The is_same_ns() function returns True when /proc/\u003cglobal pid\u003e/ does not exist in order to indicate that the crash should be handled in the global namespace rather than inside of a container. However, the portion of the data/apport code that decides whether or not to forward a crash to a container does not always replace sys.argv[1] with the value stored in the host_pid variable when /proc/\u003cglobal pid\u003e/ does not exist which results in the container pid being used in the global namespace. This flaw affects versions 2.20.8-0ubuntu4 through 2.20.9-0ubuntu7, 2.20.7-0ubuntu3.7, 2.20.7-0ubuntu3.8, 2.20.1-0ubuntu2.15 through 2.20.1-0ubuntu2.17, and 2.14.1-0ubuntu3.28.",
  "id": "GHSA-4pgc-f487-53cr",
  "modified": "2022-05-13T01:53:07Z",
  "published": "2022-05-13T01:53:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-6552"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3664-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/usn/usn-3664-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2018-6552 (GCVE-0-2018-6552)

Vulnerability from cvelistv5 – Published: 2018-05-31 22:00 – Updated: 2024-09-17 03:07

Title

Apport treats the container PID as the global PID when /proc/<global_pid>/ is missing

Summary

Apport does not properly handle crashes originating from a PID namespace allowing local users to create certain files as root which an attacker could leverage to perform a denial of service via resource exhaustion, possibly gain root privileges, or escape from containers. The is_same_ns() function returns True when /proc/<global pid>/ does not exist in order to indicate that the crash should be handled in the global namespace rather than inside of a container. However, the portion of the data/apport code that decides whether or not to forward a crash to a container does not always replace sys.argv[1] with the value stored in the host_pid variable when /proc/<global pid>/ does not exist which results in the container pid being used in the global namespace. This flaw affects versions 2.20.8-0ubuntu4 through 2.20.9-0ubuntu7, 2.20.7-0ubuntu3.7, 2.20.7-0ubuntu3.8, 2.20.1-0ubuntu2.15 through 2.20.1-0ubuntu2.17, and 2.14.1-0ubuntu3.28.

Severity ?

No CVSS data available.

CWE

Denial of service via resource exhaustion, privilege escalation, and escape from containers

Assigner

canonical

References

URL

Tags

	https://usn.ubuntu.com/usn/usn-3664-1	vendor-advisoryx_refsource_UBUNTU
	https://usn.ubuntu.com/3664-2/	vendor-advisoryx_refsource_UBUNTU

Impacted products

Vendor

Product

Version

n/a

Apport

Affected: 2.20.8-0ubuntu4 , < unspecified (custom)
Affected: unspecified , < 2.20.9-0ubuntu7.1 (custom)

n/a	Apport	Affected: 2.20.1-0ubuntu2.15 , < unspecified (custom) Affected: unspecified , < 2.20.1-0ubuntu2.18 (custom)
n/a	Apport	Affected: 2.20.7-0ubuntu3.7 , < unspecified (custom) Affected: unspecified , < 2.20.7-0ubuntu3.9 (custom)
n/a	Apport	Affected: 2.14.1-0ubuntu3.28

Credits

Sander Bos

Show details on NVD website

JSON

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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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-4PGC-F487-53CR

CVE-2018-6552 (GCVE-0-2018-6552)

Tags

Sightings

Nomenclature