{
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      "ranges": [
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      "ecosystem_specific": {},
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        "purl": "pkg:apk/alpine/ffmpeg?arch=source"
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      "ranges": [
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        "purl": "pkg:apk/alpine/ffmpeg?arch=source"
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      ]
    },
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      "ecosystem_specific": {},
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        "ecosystem": "Alpine:v3.19",
        "name": "ffmpeg",
        "purl": "pkg:apk/alpine/ffmpeg?arch=source"
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      "ranges": [
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              "introduced": "0"
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            {
              "fixed": "4.0.0-r0"
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          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {},
      "package": {
        "ecosystem": "Alpine:v3.20",
        "name": "ffmpeg",
        "purl": "pkg:apk/alpine/ffmpeg?arch=source"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
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            {
              "fixed": "4.0.0-r0"
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          "type": "ECOSYSTEM"
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      ]
    },
    {
      "ecosystem_specific": {},
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        "ecosystem": "Alpine:v3.21",
        "name": "ffmpeg",
        "purl": "pkg:apk/alpine/ffmpeg?arch=source"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
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            {
              "fixed": "4.0.0-r0"
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      ]
    },
    {
      "ecosystem_specific": {},
      "package": {
        "ecosystem": "Alpine:v3.22",
        "name": "ffmpeg",
        "purl": "pkg:apk/alpine/ffmpeg?arch=source"
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              "introduced": "0"
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        "name": "ffmpeg",
        "purl": "pkg:apk/alpine/ffmpeg?arch=source"
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      "ranges": [
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              "introduced": "0"
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            {
              "fixed": "4.0.0-r0"
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      "ecosystem_specific": {},
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        "ecosystem": "Alpine:v3.24",
        "name": "ffmpeg",
        "purl": "pkg:apk/alpine/ffmpeg?arch=source"
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              "introduced": "0"
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              "fixed": "4.0.0-r0"
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          "type": "ECOSYSTEM"
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        "name": "ffmpeg4",
        "purl": "pkg:apk/alpine/ffmpeg4?arch=source"
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          "events": [
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              "introduced": "0"
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              "fixed": "4.0.0-r0"
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          "type": "ECOSYSTEM"
        }
      ]
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    {
      "ecosystem_specific": {},
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        "ecosystem": "Alpine:v3.17",
        "name": "ffmpeg4",
        "purl": "pkg:apk/alpine/ffmpeg4?arch=source"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.0.0-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {},
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        "ecosystem": "Alpine:v3.18",
        "name": "ffmpeg4",
        "purl": "pkg:apk/alpine/ffmpeg4?arch=source"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.0.0-r0"
            }
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          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {},
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        "ecosystem": "Alpine:v3.19",
        "name": "ffmpeg4",
        "purl": "pkg:apk/alpine/ffmpeg4?arch=source"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.0.0-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {},
      "package": {
        "ecosystem": "Alpine:v3.20",
        "name": "ffmpeg4",
        "purl": "pkg:apk/alpine/ffmpeg4?arch=source"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.0.0-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {},
      "package": {
        "ecosystem": "Alpine:v3.21",
        "name": "ffmpeg4",
        "purl": "pkg:apk/alpine/ffmpeg4?arch=source"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.0.0-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {},
      "package": {
        "ecosystem": "Alpine:v3.22",
        "name": "ffmpeg4",
        "purl": "pkg:apk/alpine/ffmpeg4?arch=source"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
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            {
              "fixed": "4.0.0-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
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  ],
  "details": "Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (memory consumption) via many read accesses to files in the /sys/class/sas_phy directory, as demonstrated by the /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file.",
  "id": "ALPINE-CVE-2018-7757",
  "modified": "2026-11-03T06:17:56.218151023Z",
  "published": "2018-03-08T14:29:00.567Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security.alpinelinux.org/vuln/CVE-2018-7757"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2018-7757"
  ]
}