Vulnerability-Lookup

UBUNTU-CVE-2018-16948 (CVE-2018-16948)

Vulnerability from osv_ubuntu – Published: 2018-09-12 01:29 – Updated: 2026-04-22 07:38 – Source website

Details

An issue was discovered in OpenAFS before 1.6.23 and 1.8.x before 1.8.2. Several RPC server routines did not fully initialize their output variables before returning, leaking memory contents from both the stack and the heap. Because the OpenAFS cache manager functions as an Rx server for the AFSCB service, clients are also susceptible to information leakage. For example, RXAFSCB_TellMeAboutYourself leaks kernel memory and KAM_ListEntry leaks kaserver memory.

Severity

7.5 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2018-16948	REPORT
	http://openafs.org/pages/security/OPENAFS-SA-2018…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2018-16948	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libafsauthent1",
            "binary_version": "1.6.15-1ubuntu1.1"
          },
          {
            "binary_name": "libafsrpc1",
            "binary_version": "1.6.15-1ubuntu1.1"
          },
          {
            "binary_name": "libkopenafs1",
            "binary_version": "1.6.15-1ubuntu1.1"
          },
          {
            "binary_name": "libpam-openafs-kaserver",
            "binary_version": "1.6.15-1ubuntu1.1"
          },
          {
            "binary_name": "openafs-client",
            "binary_version": "1.6.15-1ubuntu1.1"
          },
          {
            "binary_name": "openafs-dbserver",
            "binary_version": "1.6.15-1ubuntu1.1"
          },
          {
            "binary_name": "openafs-fileserver",
            "binary_version": "1.6.15-1ubuntu1.1"
          },
          {
            "binary_name": "openafs-fuse",
            "binary_version": "1.6.15-1ubuntu1.1"
          },
          {
            "binary_name": "openafs-kpasswd",
            "binary_version": "1.6.15-1ubuntu1.1"
          },
          {
            "binary_name": "openafs-krb5",
            "binary_version": "1.6.15-1ubuntu1.1"
          },
          {
            "binary_name": "openafs-modules-dkms",
            "binary_version": "1.6.15-1ubuntu1.1"
          },
          {
            "binary_name": "openafs-modules-source",
            "binary_version": "1.6.15-1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "openafs",
        "purl": "pkg:deb/ubuntu/openafs@1.6.15-1ubuntu1.1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.14-1",
        "1.6.15-1",
        "1.6.15-1ubuntu1",
        "1.6.15-1ubuntu1.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libafsauthent2",
            "binary_version": "1.8.0~pre5-1ubuntu1.2"
          },
          {
            "binary_name": "libafsrpc2",
            "binary_version": "1.8.0~pre5-1ubuntu1.2"
          },
          {
            "binary_name": "libkopenafs2",
            "binary_version": "1.8.0~pre5-1ubuntu1.2"
          },
          {
            "binary_name": "openafs-client",
            "binary_version": "1.8.0~pre5-1ubuntu1.2"
          },
          {
            "binary_name": "openafs-dbserver",
            "binary_version": "1.8.0~pre5-1ubuntu1.2"
          },
          {
            "binary_name": "openafs-fileserver",
            "binary_version": "1.8.0~pre5-1ubuntu1.2"
          },
          {
            "binary_name": "openafs-fuse",
            "binary_version": "1.8.0~pre5-1ubuntu1.2"
          },
          {
            "binary_name": "openafs-krb5",
            "binary_version": "1.8.0~pre5-1ubuntu1.2"
          },
          {
            "binary_name": "openafs-modules-dkms",
            "binary_version": "1.8.0~pre5-1ubuntu1.2"
          },
          {
            "binary_name": "openafs-modules-source",
            "binary_version": "1.8.0~pre5-1ubuntu1.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "openafs",
        "purl": "pkg:deb/ubuntu/openafs@1.8.0~pre5-1ubuntu1.2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.21-3",
        "1.6.21-3ubuntu1",
        "1.6.22-3",
        "1.8.0~pre4-1",
        "1.8.0~pre5-1",
        "1.8.0~pre5-1ubuntu1",
        "1.8.0~pre5-1ubuntu1.1",
        "1.8.0~pre5-1ubuntu1.2"
      ]
    }
  ],
  "aliases": [],
  "details": "An issue was discovered in OpenAFS before 1.6.23 and 1.8.x before 1.8.2. Several RPC server routines did not fully initialize their output variables before returning, leaking memory contents from both the stack and the heap. Because the OpenAFS cache manager functions as an Rx server for the AFSCB service, clients are also susceptible to information leakage. For example, RXAFSCB_TellMeAboutYourself leaks kernel memory and KAM_ListEntry leaks kaserver memory.",
  "id": "UBUNTU-CVE-2018-16948",
  "modified": "2026-04-22T07:38:44Z",
  "published": "2018-09-12T01:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-16948"
    },
    {
      "type": "REPORT",
      "url": "http://openafs.org/pages/security/OPENAFS-SA-2018-002.txt"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-16948"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-16948"
  ]
}

CVE-2018-16948 (GCVE-0-2018-16948)

Vulnerability from cvelistv5 – Published: 2018-09-12 01:00 – Updated: 2024-08-05 10:39

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
https://www.debian.org/security/2018/dsa-4302	vendor-advisoryx_refsource_DEBIAN
http://openafs.org/pages/security/OPENAFS-SA-2018…	x_refsource_CONFIRM

Date Public

2018-09-11 00:00

Show details on NVD website

JSON

To clipboard

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            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00024.html"
          },
          {
            "name": "DSA-4302",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2018/dsa-4302"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://openafs.org/pages/security/OPENAFS-SA-2018-002.txt"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "lang": "en",
          "value": "An issue was discovered in OpenAFS before 1.6.23 and 1.8.x before 1.8.2. Several RPC server routines did not fully initialize their output variables before returning, leaking memory contents from both the stack and the heap. Because the OpenAFS cache manager functions as an Rx server for the AFSCB service, clients are also susceptible to information leakage. For example, RXAFSCB_TellMeAboutYourself leaks kernel memory and KAM_ListEntry leaks kaserver memory."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
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      ],
      "providerMetadata": {
        "dateUpdated": "2018-09-24T09:57:01.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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          "tags": [
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          ],
          "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00024.html"
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        },
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          ],
          "url": "http://openafs.org/pages/security/OPENAFS-SA-2018-002.txt"
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      "x_legacyV4Record": {
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          "ID": "CVE-2018-16948",
          "STATE": "PUBLIC"
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        "affects": {
          "vendor": {
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              {
                "product": {
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
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Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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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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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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UBUNTU-CVE-2018-16948 (CVE-2018-16948)

CVE-2018-16948 (GCVE-0-2018-16948)

Tags

Sightings

Nomenclature

Related by attack behaviour