Vulnerability-Lookup

GHSA-M6F7-Q6M8-788V

Vulnerability from github – Published: 2022-05-14 02:03 – Updated: 2022-05-14 02:03

Details

The ext4_xattr_check_entries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an error code, and consequently allows attackers to cause a denial of service (get_acl NULL pointer dereference and system crash) via a crafted ext4 image.

Severity

5.5 (Medium)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2018-1095"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-04-02T03:29:00Z",
    "severity": "HIGH"
  },
  "details": "The ext4_xattr_check_entries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an error code, and consequently allows attackers to cause a denial of service (get_acl NULL pointer dereference and system crash) via a crafted ext4 image.",
  "id": "GHSA-m6f7-q6m8-788v",
  "modified": "2022-05-14T02:03:05Z",
  "published": "2022-05-14T02:03:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-1095"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:2948"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2018-1095"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.kernel.org/show_bug.cgi?id=199185"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1560793"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=ce3fd194fcc6fbdc00ce095a852f22df97baa401"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3695-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3695-2"
    },
    {
      "type": "WEB",
      "url": "http://openwall.com/lists/oss-security/2018/03/29/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2018-1095 (GCVE-0-2018-1095)

Vulnerability from cvelistv5 – Published: 2018-04-02 03:00 – Updated: 2024-08-05 03:51

Summary

Severity

No CVSS data available.

CWE

NULL pointer dereference

Assigner

redhat CNA under the redhat root

CNA scorecard B 81/100 over 1011 records in the last 180 days details

References

7 references

URL	Tags
https://git.kernel.org/pub/scm/linux/kernel/git/t…	x_refsource_MISC
http://openwall.com/lists/oss-security/2018/03/29/1	x_refsource_MISC
https://usn.ubuntu.com/3695-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3695-2/	vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2018:2948	vendor-advisoryx_refsource_REDHAT
https://bugzilla.kernel.org/show_bug.cgi?id=199185	x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=1560793	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	Linux kernel through version 4.15	Affected: Linux kernel through version 4.15

Date Public

2018-04-01 00:00

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-05T03:51:48.616Z",
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            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1560793"
          }
        ],
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        "dateUpdated": "2018-10-31T09:57:01.000Z",
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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.
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.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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