Vulnerability-Lookup

CNVD-2016-11272

Vulnerability from cnvd - Published: 2016-11-18

Title

p7zip空指针逆向引用漏洞

Description

p7zip是一套用于类Unix系统中的数据压缩、解压缩软件（也就是Win下的7z压缩软件）。 p7zip 16.02及之前的版本中的CPP/7zip/Archive/7z/7zIn.cpp文件中的‘CInArchive::ReadAndDecodePackedStreams’函数存在安全漏洞。攻击者可通过解码畸形的7z文件利用该漏洞造成拒绝服务（崩溃）。

Severity

中

Patch Name

p7zip空指针逆向引用漏洞的补丁

Patch Description

Formal description

目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接： https://sourceforge.net/p/p7zip/discussion/383043/thread/648d34db/

Reference

https://github.com/yangke/7zip-null-pointer-dereference https://sourceforge.net/p/p7zip/bugs/185/

Impacted products

Name
p7zip p7zip 16.02

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "94294"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-9296"
    }
  },
  "description": "p7zip\u662f\u4e00\u5957\u7528\u4e8e\u7c7bUnix\u7cfb\u7edf\u4e2d\u7684\u6570\u636e\u538b\u7f29\u3001\u89e3\u538b\u7f29\u8f6f\u4ef6\uff08\u4e5f\u5c31\u662fWin\u4e0b\u76847z\u538b\u7f29\u8f6f\u4ef6\uff09\u3002\r\n\r\np7zip 16.02\u53ca\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684CPP/7zip/Archive/7z/7zIn.cpp\u6587\u4ef6\u4e2d\u7684\u2018CInArchive::ReadAndDecodePackedStreams\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u89e3\u7801\u7578\u5f62\u76847z\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5d29\u6e83\uff09\u3002",
  "discovererName": "Hanno B\u00c3\u00b6ck",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://sourceforge.net/p/p7zip/discussion/383043/thread/648d34db/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-11272",
  "openTime": "2016-11-18",
  "patchDescription": "p7zip\u662f\u4e00\u5957\u7528\u4e8e\u7c7bUnix\u7cfb\u7edf\u4e2d\u7684\u6570\u636e\u538b\u7f29\u3001\u89e3\u538b\u7f29\u8f6f\u4ef6\uff08\u4e5f\u5c31\u662fWin\u4e0b\u76847z\u538b\u7f29\u8f6f\u4ef6\uff09\u3002\r\n\r\np7zip 16.02\u53ca\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684CPP/7zip/Archive/7z/7zIn.cpp\u6587\u4ef6\u4e2d\u7684\u2018CInArchive::ReadAndDecodePackedStreams\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u89e3\u7801\u7578\u5f62\u76847z\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5d29\u6e83\uff09\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "p7zip\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "p7zip p7zip 16.02"
  },
  "referenceLink": "https://github.com/yangke/7zip-null-pointer-dereference\r\nhttps://sourceforge.net/p/p7zip/bugs/185/",
  "serverity": "\u4e2d",
  "submitTime": "2016-11-15",
  "title": "p7zip\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\u6f0f\u6d1e"
}

CVE-2016-9296 (GCVE-0-2016-9296)

Vulnerability from cvelistv5 – Published: 2016-11-12 02:19 – Updated: 2024-08-06 02:42

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.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

4 references

URL	Tags
http://www.securityfocus.com/bid/94294	vdb-entryx_refsource_BID
https://sourceforge.net/p/p7zip/bugs/185/	x_refsource_MISC
https://sourceforge.net/p/p7zip/discussion/383043…	x_refsource_MISC
https://github.com/yangke/7zip-null-pointer-dereference	x_refsource_MISC

Date Public

2016-11-11 00:00

Show details on NVD website

JSON

To clipboard

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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.
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Action not permitted

CNVD-2016-11272

CVE-2016-9296 (GCVE-0-2016-9296)

Tags

Sightings

Nomenclature

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