msrc_cve-2016-9296
Vulnerability from csaf_microsoft
Published
2016-11-02 00:00
Modified
2024-06-30 07:00
Summary
A null pointer dereference bug affects the 16.02 and many old versions of p7zip. A lack of null pointer check for the variable folders.PackPositions in function CInArchive::ReadAndDecodePackedStreams in CPP/7zip/Archive/7z/7zIn.cpp as used in the 7z.so library and in 7z applications will cause a crash and a denial of service when decoding malformed 7z files.

Notes

Additional Resources
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer
The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.


To clipboard 

{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2016-9296 A null pointer dereference bug affects the 16.02 and many old versions of p7zip. A lack of null pointer check for the variable folders.PackPositions in function CInArchive::ReadAndDecodePackedStreams in CPP/7zip/Archive/7z/7zIn.cpp as used in the 7z.so library and in 7z applications will cause a crash and a denial of service when decoding malformed 7z files. - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2016/msrc_cve-2016-9296.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "A null pointer dereference bug affects the 16.02 and many old versions of p7zip. A lack of null pointer check for the variable folders.PackPositions in function CInArchive::ReadAndDecodePackedStreams in CPP/7zip/Archive/7z/7zIn.cpp as used in the 7z.so library and in 7z applications will cause a crash and a denial of service when decoding malformed 7z files.",
    "tracking": {
      "current_release_date": "2024-06-30T07:00:00.000Z",
      "generator": {
        "date": "2025-10-19T17:06:32.365Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2016-9296",
      "initial_release_date": "2016-11-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2021-12-16T00:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2024-06-30T07:00:00.000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
                  "product_id": "17084"
                }
              },
              {
                "category": "product_version",
                "name": "1.0",
                "product": {
                  "name": "CBL Mariner 1.0",
                  "product_id": "16820"
                }
              },
              {
                "category": "product_version",
                "name": "2.0",
                "product": {
                  "name": "CBL Mariner 2.0",
                  "product_id": "17086"
                }
              },
              {
                "category": "product_version",
                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
                  "product_id": "16817"
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cazl3 p7zip 16.02-23",
                "product": {
                  "name": "\u003cazl3 p7zip 16.02-23",
                  "product_id": "1"
                }
              },
              {
                "category": "product_version",
                "name": "azl3 p7zip 16.02-23",
                "product": {
                  "name": "azl3 p7zip 16.02-23",
                  "product_id": "16884"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003ccm1 p7zip 16.02-22",
                "product": {
                  "name": "\u003ccm1 p7zip 16.02-22",
                  "product_id": "4"
                }
              },
              {
                "category": "product_version",
                "name": "cm1 p7zip 16.02-22",
                "product": {
                  "name": "cm1 p7zip 16.02-22",
                  "product_id": "16882"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003ccbl2 p7zip 16.02-22",
                "product": {
                  "name": "\u003ccbl2 p7zip 16.02-22",
                  "product_id": "3"
                }
              },
              {
                "category": "product_version",
                "name": "cbl2 p7zip 16.02-22",
                "product": {
                  "name": "cbl2 p7zip 16.02-22",
                  "product_id": "16883"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003cazl3 p7zip 16.02-23",
                "product": {
                  "name": "\u003cazl3 p7zip 16.02-23",
                  "product_id": "2"
                }
              },
              {
                "category": "product_version",
                "name": "azl3 p7zip 16.02-23",
                "product": {
                  "name": "azl3 p7zip 16.02-23",
                  "product_id": "16884"
                }
              }
            ],
            "category": "product_name",
            "name": "p7zip"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003cazl3 p7zip 16.02-23 as a component of Azure Linux 3.0",
          "product_id": "17084-1"
        },
        "product_reference": "1",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 p7zip 16.02-23 as a component of Azure Linux 3.0",
          "product_id": "16884-17084"
        },
        "product_reference": "16884",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003ccm1 p7zip 16.02-22 as a component of CBL Mariner 1.0",
          "product_id": "16820-4"
        },
        "product_reference": "4",
        "relates_to_product_reference": "16820"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "cm1 p7zip 16.02-22 as a component of CBL Mariner 1.0",
          "product_id": "16882-16820"
        },
        "product_reference": "16882",
        "relates_to_product_reference": "16820"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003ccbl2 p7zip 16.02-22 as a component of CBL Mariner 2.0",
          "product_id": "17086-3"
        },
        "product_reference": "3",
        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "cbl2 p7zip 16.02-22 as a component of CBL Mariner 2.0",
          "product_id": "16883-17086"
        },
        "product_reference": "16883",
        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003cazl3 p7zip 16.02-23 as a component of Azure Linux 3.0",
          "product_id": "16817-2"
        },
        "product_reference": "2",
        "relates_to_product_reference": "16817"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 p7zip 16.02-23 as a component of Azure Linux 3.0",
          "product_id": "16884-16817"
        },
        "product_reference": "16884",
        "relates_to_product_reference": "16817"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2016-9296",
      "cwe": {
        "id": "CWE-476",
        "name": "NULL Pointer Dereference"
      },
      "notes": [
        {
          "category": "general",
          "text": "mitre",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "fixed": [
          "16884-17084",
          "16882-16820",
          "16883-17086",
          "16884-16817"
        ],
        "known_affected": [
          "17084-1",
          "16820-4",
          "17086-3",
          "16817-2"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2016-9296 A null pointer dereference bug affects the 16.02 and many old versions of p7zip. A lack of null pointer check for the variable folders.PackPositions in function CInArchive::ReadAndDecodePackedStreams in CPP/7zip/Archive/7z/7zIn.cpp as used in the 7z.so library and in 7z applications will cause a crash and a denial of service when decoding malformed 7z files. - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2016/msrc_cve-2016-9296.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-12-16T00:00:00.000Z",
          "details": "16.02-23:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17084-1",
            "16817-2"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        },
        {
          "category": "vendor_fix",
          "date": "2021-12-16T00:00:00.000Z",
          "details": "16.02-22:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "16820-4",
            "17086-3"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "environmentalsScore": 0.0,
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 7.5,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "17084-1",
            "16820-4",
            "17086-3",
            "16817-2"
          ]
        }
      ],
      "title": "A null pointer dereference bug affects the 16.02 and many old versions of p7zip. A lack of null pointer check for the variable folders.PackPositions in function CInArchive::ReadAndDecodePackedStreams in CPP/7zip/Archive/7z/7zIn.cpp as used in the 7z.so library and in 7z applications will cause a crash and a denial of service when decoding malformed 7z files."
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.