ubuntu-cve-2020-8432
Vulnerability from osv_ubuntu
Published
2020-01-29 19:15
Modified
2025-09-08 16:45
Summary
Details

In Das U-Boot through 2020.01, a double free has been found in the cmd/gpt.c do_rename_gpt_parts() function. Double freeing may result in a write-what-where condition, allowing an attacker to execute arbitrary code. NOTE: this vulnerablity was introduced when attempting to fix a memory leak identified by static analysis.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "u-boot",
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.2"
          },
          {
            "binary_name": "u-boot-amlogic",
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.2"
          },
          {
            "binary_name": "u-boot-exynos",
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.2"
          },
          {
            "binary_name": "u-boot-imx",
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.2"
          },
          {
            "binary_name": "u-boot-mvebu",
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.2"
          },
          {
            "binary_name": "u-boot-omap",
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.2"
          },
          {
            "binary_name": "u-boot-qcom",
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.2"
          },
          {
            "binary_name": "u-boot-qemu",
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.2"
          },
          {
            "binary_name": "u-boot-rockchip",
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.2"
          },
          {
            "binary_name": "u-boot-rpi",
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.2"
          },
          {
            "binary_name": "u-boot-sunxi",
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.2"
          },
          {
            "binary_name": "u-boot-tegra",
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.2"
          },
          {
            "binary_name": "u-boot-tools",
            "binary_version": "2020.10+dfsg-1ubuntu0~18.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "u-boot",
        "purl": "pkg:deb/ubuntu/u-boot@2020.10+dfsg-1ubuntu0~18.04.2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2020.10+dfsg-1ubuntu0~18.04.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2016.03+dfsg1-6ubuntu2",
        "2018.07~rc3+dfsg1-0ubuntu1~18.04.1",
        "2018.07~rc3+dfsg1-0ubuntu2~18.04.1",
        "2018.07~rc3+dfsg1-0ubuntu3~18.04.1",
        "2019.07+dfsg-1ubuntu4~18.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "u-boot",
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.3"
          },
          {
            "binary_name": "u-boot-amlogic",
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.3"
          },
          {
            "binary_name": "u-boot-exynos",
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.3"
          },
          {
            "binary_name": "u-boot-imx",
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.3"
          },
          {
            "binary_name": "u-boot-mvebu",
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.3"
          },
          {
            "binary_name": "u-boot-omap",
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.3"
          },
          {
            "binary_name": "u-boot-qcom",
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.3"
          },
          {
            "binary_name": "u-boot-qemu",
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.3"
          },
          {
            "binary_name": "u-boot-rockchip",
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.3"
          },
          {
            "binary_name": "u-boot-rpi",
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.3"
          },
          {
            "binary_name": "u-boot-sifive",
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.3"
          },
          {
            "binary_name": "u-boot-sunxi",
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.3"
          },
          {
            "binary_name": "u-boot-tegra",
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.3"
          },
          {
            "binary_name": "u-boot-tools",
            "binary_version": "2021.01+dfsg-3ubuntu0~20.04.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "u-boot",
        "purl": "pkg:deb/ubuntu/u-boot@2021.01+dfsg-3ubuntu0~20.04.3?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2021.01+dfsg-3ubuntu0~20.04.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2019.07+dfsg-1ubuntu3",
        "2019.07+dfsg-1ubuntu5",
        "2019.07+dfsg-1ubuntu6",
        "2020.10+dfsg-1ubuntu0~20.04.2",
        "2021.01+dfsg-3ubuntu0~20.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "In Das U-Boot through 2020.01, a double free has been found in the cmd/gpt.c do_rename_gpt_parts() function. Double freeing may result in a write-what-where condition, allowing an attacker to execute arbitrary code. NOTE: this vulnerablity was introduced when attempting to fix a memory leak identified by static analysis.",
  "id": "UBUNTU-CVE-2020-8432",
  "modified": "2025-09-08T16:45:59Z",
  "published": "2020-01-29T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-8432"
    },
    {
      "type": "REPORT",
      "url": "https://lists.denx.de/pipermail/u-boot/2020-January/396799.html"
    },
    {
      "type": "REPORT",
      "url": "https://lists.denx.de/pipermail/u-boot/2020-January/396853.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.mail-archive.com/u-boot@lists.denx.de/msg354060.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.mail-archive.com/u-boot@lists.denx.de/msg354114.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-8432"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-8432"
  ]
}



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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

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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.
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  • 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.


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