FKIE_CVE-2020-8835

Vulnerability from fkie_nvd - Published: 2020-04-02 18:15 - Updated: 2026-06-17 03:27
Summary
In the Linux kernel 5.5.0 and newer, the bpf verifier (kernel/bpf/verifier.c) did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable series, starting with v5.4.7, as the introducing commit was backported to that branch. This vulnerability was fixed in 5.6.1, 5.5.14, and 5.4.29. (issue is aka ZDI-CAN-10780)
References
security@ubuntu.comhttp://www.openwall.com/lists/oss-security/2021/07/20/1Exploit, Mailing List, Third Party Advisory
security@ubuntu.comhttps://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fefPatch, Vendor Advisory
security@ubuntu.comhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fefPatch, Vendor Advisory
security@ubuntu.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7OONYGMSYBEFHLHZJK3GOI5Z553G4LD/
security@ubuntu.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TF4PQZBEPNXDSK5DOBMW54OCLP25FTCD/
security@ubuntu.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YXBWSHZ6DJIZVXKXGZPK6QPFCY7VKZEG/
security@ubuntu.comhttps://lore.kernel.org/bpf/20200330160324.15259-1-daniel%40iogearbox.net/T/
security@ubuntu.comhttps://security.netapp.com/advisory/ntap-20200430-0004/Third Party Advisory
security@ubuntu.comhttps://usn.ubuntu.com/4313-1/Third Party Advisory
security@ubuntu.comhttps://usn.ubuntu.com/usn/usn-4313-1Third Party Advisory
security@ubuntu.comhttps://www.openwall.com/lists/oss-security/2020/03/30/3Mailing List, Patch, Third Party Advisory
security@ubuntu.comhttps://www.thezdi.com/blog/2020/3/19/pwn2own-2020-day-one-resultsThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2021/07/20/1Exploit, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fefPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fefPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7OONYGMSYBEFHLHZJK3GOI5Z553G4LD/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TF4PQZBEPNXDSK5DOBMW54OCLP25FTCD/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YXBWSHZ6DJIZVXKXGZPK6QPFCY7VKZEG/
af854a3a-2127-422b-91ae-364da2661108https://lore.kernel.org/bpf/20200330160324.15259-1-daniel%40iogearbox.net/T/
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20200430-0004/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4313-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/usn/usn-4313-1Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2020/03/30/3Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.thezdi.com/blog/2020/3/19/pwn2own-2020-day-one-resultsThird Party Advisory

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Linux kernel",
          "vendor": "Linux kernel",
          "versions": [
            {
              "lessThan": "5.6.1",
              "status": "affected",
              "version": "5.6-stable",
              "versionType": "custom"
            },
            {
              "lessThan": "5.5.14",
              "status": "affected",
              "version": "5.5-stable",
              "versionType": "custom"
            },
            {
              "changes": [
                {
                  "at": "5.4.29",
                  "status": "unaffected"
                }
              ],
              "lessThan": "5.4-stable*",
              "status": "affected",
              "version": "5.4.7",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@ubuntu.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4F715B99-43A7-4487-95F0-61A0C0D395D9",
              "versionEndExcluding": "5.4.29",
              "versionStartIncluding": "5.4.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C1952E71-2355-44B6-99A9-8A7754C73458",
              "versionEndExcluding": "5.5.14",
              "versionStartIncluding": "5.5.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "67F018B4-5EAD-485E-AE88-63C5BF663268",
              "versionEndExcluding": "5.6.1",
              "versionStartIncluding": "5.6",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
              "matchCriteriaId": "97A4B8DF-58DA-4AB6-A1F9-331B36409BA3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
              "matchCriteriaId": "80F0FA5D-8D3B-4C0E-81E2-87998286AF33",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
              "matchCriteriaId": "36D96259-24BD-44E2-96D9-78CE1D41F956",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
              "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*",
              "matchCriteriaId": "A31C8344-3E02-4EB8-8BD8-4C84B7959624",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "5C2089EE-5D7F-47EC-8EA5-0F69790564C4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "A3C19813-E823-456A-B1CE-EC0684CE1953",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "A6E9EF0C-AFA8-4F7B-9FDC-1E0F7C26E737",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "E94F7F59-1785-493F-91A7-5F5EA5E87E4D",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:a700s_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "FDD92BFA-9117-4E6E-A13F-ED064B4B7284",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:a700s:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "4B7DA42F-5D64-4967-A2D4-6210FE507841",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:8300_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "4E73901F-666D-4D8B-BDFD-93DD2F70C74B",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:8300:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "D0FD5AED-42CF-4918-B32C-D675738EF15C",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:8700_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "34B25BEF-8708-4E2C-8BA6-EBCD5267EB04",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:8700:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "CE0F11D2-B5D9-46B4-BFC5-C86BC87D516A",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:a400_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "04E3BD77-8915-4FFC-8483-5DB5D610F829",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:a400:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "97E94ECB-BB51-4364-BEDD-8648C193196F",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:a320_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "6ADE5E80-06D3-4A1B-A655-FBB6CCA03939",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:a320:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "E8FD5E05-3C58-465F-9D4F-ECC2CD78DCFF",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:c190_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "75A43965-CB2E-4C28-AFC3-1ADE7A6B845C",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:c190:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "0D421A96-E6E9-4B27-ADE0-D8E87A82EEDE",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:a220_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "4F2D2745-242C-4603-899E-70C9025BDDD2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:a220:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "EFB4541D-5EF7-4266-BFF3-2DDEC95E8012",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:fas2720_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "B7FD1DA9-7980-4643-B378-7095892DA176",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:fas2720:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "347E9E3E-941C-4109-B59F-B9BB05486B34",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:fas2750_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "AD661062-0D5B-4671-9D92-FEF8D7395C1E",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:fas2750:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "8155BF5F-DD1B-4AB4-81F8-9BCE6A8821AE",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:a800_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "B36CECA5-4545-49C2-92EB-B739407B207F",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:a800:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "D8E7549A-DE35-4274-B3F6-22D51C7A6613",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "6770B6C3-732E-4E22-BF1C-2D2FD610061C",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "9F9C8C20-42EB-4AB5-BD97-212DEB070C43",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "7FFF7106-ED78-49BA-9EC5-B889E3685D53",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "E63D8B0F-006E-4801-BF9D-1C001BBFB4F9",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "56409CEC-5A1E-4450-AA42-641E459CC2AF",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "B06F4839-D16A-4A61-9BB5-55B13F41E47F",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "108A2215-50FB-4074-94CF-C130FA14566D",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "7AFC73CE-ABB9-42D3-9A71-3F5BC5381E0E",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "32F0B6C0-F930-480D-962B-3F4EFDCC13C7",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "803BC414-B250-4E3A-A478-A3881340D6B8",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "0FEB3337-BFDE-462A-908B-176F92053CEC",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "736AEAE9-782B-4F71-9893-DED53367E102",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "D0B4AD8A-F172-4558-AEC6-FF424BA2D912",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "8497A4C9-8474-4A62-8331-3FE862ED4098",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "89612649-BACF-4FAC-9BA4-324724FD93A6",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:h610c:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "F3D9B255-C1AF-42D1-BF9B-13642FBDC080",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "FD7CFE0E-9D1E-4495-B302-89C3096FC0DF",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:h610s:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "F63A3FA7-AAED-4A9D-9FDE-6195302DA0F6",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "5921A877-18BF-43FE-915C-D226E140ACFC",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:netapp:h615c:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "7296A1F2-D315-4FD5-8A73-65C480C855BE",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel 5.5.0 and newer, the bpf verifier (kernel/bpf/verifier.c) did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable series, starting with v5.4.7, as the introducing commit was backported to that branch. This vulnerability was fixed in 5.6.1, 5.5.14, and 5.4.29. (issue is aka ZDI-CAN-10780)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux versiones 5.5.0 y m\u00e1s recientes, el verificador bpf (kernel/bpf/verifier.c) no restringi\u00f3 apropiadamente los l\u00edmites de registro para operaciones de 32 bits, conllevando a lecturas y escrituras fuera de l\u00edmites en la memoria del kernel. La vulnerabilidad tambi\u00e9n afecta a la serie estable de Linux versi\u00f3n 5.4, comenzando con la versi\u00f3n v5.4.7, ya que el commit de introducci\u00f3n fue respaldado en esa derivaci\u00f3n. Esta vulnerabilidad fue corregida en las versiones 5.6.1, 5.5.14 y 5.4.29. (el problema tambi\u00e9n se conoce como ZDI-CAN-10780)"
    }
  ],
  "id": "CVE-2020-8835",
  "lastModified": "2026-06-17T03:27:01.963",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.1,
        "impactScore": 6.0,
        "source": "security@ubuntu.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-04-02T18:15:18.943",
  "references": [
    {
      "source": "security@ubuntu.com",
      "tags": [
        "Exploit",
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2021/07/20/1"
    },
    {
      "source": "security@ubuntu.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fef"
    },
    {
      "source": "security@ubuntu.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fef"
    },
    {
      "source": "security@ubuntu.com",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7OONYGMSYBEFHLHZJK3GOI5Z553G4LD/"
    },
    {
      "source": "security@ubuntu.com",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TF4PQZBEPNXDSK5DOBMW54OCLP25FTCD/"
    },
    {
      "source": "security@ubuntu.com",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YXBWSHZ6DJIZVXKXGZPK6QPFCY7VKZEG/"
    },
    {
      "source": "security@ubuntu.com",
      "url": "https://lore.kernel.org/bpf/20200330160324.15259-1-daniel%40iogearbox.net/T/"
    },
    {
      "source": "security@ubuntu.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20200430-0004/"
    },
    {
      "source": "security@ubuntu.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://usn.ubuntu.com/4313-1/"
    },
    {
      "source": "security@ubuntu.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://usn.ubuntu.com/usn/usn-4313-1"
    },
    {
      "source": "security@ubuntu.com",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://www.openwall.com/lists/oss-security/2020/03/30/3"
    },
    {
      "source": "security@ubuntu.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.thezdi.com/blog/2020/3/19/pwn2own-2020-day-one-results"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2021/07/20/1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fef"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fef"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7OONYGMSYBEFHLHZJK3GOI5Z553G4LD/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TF4PQZBEPNXDSK5DOBMW54OCLP25FTCD/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YXBWSHZ6DJIZVXKXGZPK6QPFCY7VKZEG/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lore.kernel.org/bpf/20200330160324.15259-1-daniel%40iogearbox.net/T/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20200430-0004/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://usn.ubuntu.com/4313-1/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://usn.ubuntu.com/usn/usn-4313-1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://www.openwall.com/lists/oss-security/2020/03/30/3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.thezdi.com/blog/2020/3/19/pwn2own-2020-day-one-results"
    }
  ],
  "sourceIdentifier": "security@ubuntu.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        },
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Loading…

Loading…

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.


Loading…