CVE-2016-9296

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Summary

CVECVE-2016-9296
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-11-12 02:59:04 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.0 7.5 HIGH from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.016530000 probability, percentile 0.821630000 (date 2026-05-10)

Problem Types: CWE-476 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary7.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application 7-zip P7zip 16.02 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
GitHub - yangke/7zip-null-pointer-dereference: This repository is for CVE bug report of p7zip only af854a3a-2127-422b-91ae-364da2661108 github.com Issue Tracking, Patch, Third Party Advisory
p7zip / Discussion / Open Discussion:A Null Pointer Dereference Bug of p7zip(including the latest p7zip_16.02) af854a3a-2127-422b-91ae-364da2661108 sourceforge.net Exploit, Third Party Advisory
p7zip Null Pointer Dereference CVE-2016-9296 Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
p7zip / Bugs / #185 null pointer access / segfault in NArchive::N7z::CInArchive::ReadAndDecodePackedStreams af854a3a-2127-422b-91ae-364da2661108 sourceforge.net Issue Tracking, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 500506 Alpine Linux Security Update for p7zip
  • 504265 Alpine Linux Security Update for p7zip
  • 900090 CBL-Mariner Linux Security Update for p7zip 16.02
  • 901055 Common Base Linux Mariner (CBL-Mariner) Security Update for p7zip (6782-1)
  • 903063 Common Base Linux Mariner (CBL-Mariner) Security Update for p7zip (4254)
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