ubuntu-cve-2016-9296
Vulnerability from osv_ubuntu
Published
2016-11-12 02:59
Modified
2025-07-16 04:51
Summary
Details

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.

Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "p7zip",
            "binary_version": "16.02+dfsg-6"
          },
          {
            "binary_name": "p7zip-dbgsym",
            "binary_version": "16.02+dfsg-6"
          },
          {
            "binary_name": "p7zip-full",
            "binary_version": "16.02+dfsg-6"
          },
          {
            "binary_name": "p7zip-full-dbgsym",
            "binary_version": "16.02+dfsg-6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "p7zip",
        "purl": "pkg:deb/ubuntu/p7zip@16.02+dfsg-6?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "16.02+dfsg-6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "16.02+dfsg-4",
        "16.02+dfsg-5"
      ]
    }
  ],
  "aliases": [],
  "details": "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.",
  "id": "UBUNTU-CVE-2016-9296",
  "modified": "2025-07-16T04:51:33Z",
  "published": "2016-11-12T02:59:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-9296"
    },
    {
      "type": "REPORT",
      "url": "https://sourceforge.net/p/p7zip/bugs/185/"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/yangke/7zip-null-pointer-dereference"
    },
    {
      "type": "REPORT",
      "url": "https://sourceforge.net/p/p7zip/discussion/383043/thread/648d34db/"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2016-9296"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2016-9296"
  ],
  "withdrawn": "2025-07-18T16:43:40Z"
}



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