CVE-2017-7979 (GCVE-0-2017-7979)

Vulnerability from cvelistv5 – Published: 2017-04-19 23:00 – Updated: 2024-08-05 16:19
VLAI
Summary
The cookie feature in the packet action API implementation in net/sched/act_api.c in the Linux kernel 4.11.x through 4.11-rc7 mishandles the tb nlattr array, which allows local users to cause a denial of service (uninitialized memory access and refcount underflow, and system hang or crash) or possibly have unspecified other impact via "tc filter add" commands in certain contexts. NOTE: this does not affect stable kernels, such as 4.10.x, from kernel.org.
Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • n/a
Assigner
References
Date Public
2017-04-19 00:00
Show details on NVD website
To clipboard 

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              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2017-04-19T23:59:00.153",
        "references": [
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "http://marc.info/?l=linux-netdev\u0026m=149200742616349"
          },
          {
            "source": "cve@mitre.org",
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          {
            "source": "cve@mitre.org",
            "url": "http://www.securityfocus.com/bid/97969"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
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              "Patch"
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            "url": "https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1682368"
          },
          {
            "source": "cve@mitre.org",
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              "Issue Tracking",
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          },
          {
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          },
          {
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          },
          {
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            "url": "https://bugzilla.proxmox.com/show_bug.cgi?id=1351"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
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        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-05-13T01:40:37+00:00",
      "cve": "CVE-2017-7979",
      "id": "CVE-2017-7979",
      "initial_release_date": "2017-04-12T00:00:00+00:00",
      "product_status:known_not_affected": "55",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: cookie feature in packet action API implementation mishandles tb nlattr array",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-7979.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-26T00:40:02Z",
      "cve": "CVE-2017-7979",
      "id": "CVE-2017-7979",
      "initial_release_date": "2023-02-15T04:46:25Z",
      "product_status:known_not_affected": "34",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2017-7979",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2017-7979.json",
      "version": "8"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



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.