CVE-2016-9840 (GCVE-0-2016-9840)

Vulnerability from cvelistv5 – Published: 2017-05-23 03:56 – Updated: 2026-07-14 11:44
VLAI
Summary
inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • n/a
Assigner
References
URL Tags
https://access.redhat.com/errata/RHSA-2017:1221 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:1220 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:3047 vendor-advisoryx_refsource_REDHAT
http://www.openwall.com/lists/oss-security/2016/1… mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/95131 vdb-entryx_refsource_BID
https://access.redhat.com/errata/RHSA-2017:3046 vendor-advisoryx_refsource_REDHAT
http://lists.opensuse.org/opensuse-updates/2017-0… vendor-advisoryx_refsource_SUSE
https://security.gentoo.org/glsa/201701-56 vendor-advisoryx_refsource_GENTOO
http://www.securitytracker.com/id/1039427 vdb-entryx_refsource_SECTRACK
https://access.redhat.com/errata/RHSA-2017:1222 vendor-advisoryx_refsource_REDHAT
http://lists.opensuse.org/opensuse-updates/2017-0… vendor-advisoryx_refsource_SUSE
https://access.redhat.com/errata/RHSA-2017:3453 vendor-advisoryx_refsource_REDHAT
http://lists.opensuse.org/opensuse-updates/2016-1… vendor-advisoryx_refsource_SUSE
https://access.redhat.com/errata/RHSA-2017:2999 vendor-advisoryx_refsource_REDHAT
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://usn.ubuntu.com/4246-1/ vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2020… mailing-listx_refsource_MLIST
https://usn.ubuntu.com/4292-1/ vendor-advisoryx_refsource_UBUNTU
http://www.oracle.com/technetwork/security-adviso… x_refsource_CONFIRM
https://www.oracle.com/security-alerts/cpujul2020.html x_refsource_MISC
http://www.oracle.com/technetwork/security-adviso… x_refsource_CONFIRM
https://support.apple.com/HT208144 x_refsource_CONFIRM
https://github.com/madler/zlib/commit/6a043145ca6… x_refsource_CONFIRM
https://wiki.mozilla.org/MOSS/Secure_Open_Source/… x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=1402345 x_refsource_CONFIRM
https://support.apple.com/HT208113 x_refsource_CONFIRM
https://support.apple.com/HT208112 x_refsource_CONFIRM
https://support.apple.com/HT208115 x_refsource_CONFIRM
https://wiki.mozilla.org/images/0/09/Zlib-report.pdf x_refsource_MISC
https://security.gentoo.org/glsa/202007-54 vendor-advisoryx_refsource_GENTOO
https://cert-portal.siemens.com/productcert/html/…
Impacted products
Vendor Product Version
Siemens CADRA Affected: 0 , < V2511 (custom)
Create a notification for this product.
Date Public
2016-09-30 00:00
Show details on NVD website
To clipboard 

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      "published": "2017-05-23T04:29:01.667",
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      "sourceIdentifier": "security@opentext.com",
      "vulnStatus": "Modified",
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    },
    "microsoft_vex": {
      "current_release_date": "2026-02-18T01:09:12.000Z",
      "cve": "CVE-2016-9840",
      "id": "msrc_CVE-2016-9840",
      "initial_release_date": "2017-05-02T00:00:00.000Z",
      "product_status:fixed": "3",
      "product_status:known_affected": "3",
      "product_status:known_not_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic",
      "url": "https://msrc.microsoft.com/csaf/vex/2017/msrc_cve-2016-9840.json",
      "version": "2"
    },
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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-30T10:20:06+00:00",
      "cve": "CVE-2016-9840",
      "id": "CVE-2016-9840",
      "initial_release_date": "2016-09-22T00:00:00+00:00",
      "product_status:fixed": "1917",
      "product_status:known_not_affected": "20",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "zlib: Out-of-bound pointer arithmetic in inftrees.c",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-9840.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "critical",
      "current_release_date": "2026-07-07T15:47:23Z",
      "cve": "CVE-2016-9840",
      "id": "CVE-2016-9840",
      "initial_release_date": "2023-02-15T04:55:03Z",
      "product_status:known_affected": "541",
      "product_status:known_not_affected": "277",
      "product_status:recommended": "2485",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2016-9840",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2016-9840.json",
      "version": "45"
    }
  }
}



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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

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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.


Detection rules are retrieved from Rulezet.