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Fencer Vulns
critical 9.8

CVE-2016-9843 in the critical feed json

The crc32_big function in crc32.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving bi…

published 2017-05-23 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-10643

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.8%
EPSS 5.8% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

The crc32_big function in crc32.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving big-endian CRC calculation.

Patch / fix

  • mariadb mariadb 5.5.62, 10.0.37, 10.1.37, 10.2.19, 10.3.11
  • nodejs node.js 4.8.2, 6.10.2, 7.6.0
  • zlib zlib 1.2.9
  • oracle java_se 1.6.0_171, 1.7.0_161, 1.8.0_151, 6.0.171, 7.0.161, 8.0.151
  • oracle jdk 1.6.0_171, 1.7.0_161, 1.8.0_151, 6.0.171, 7.0.161, 8.0.151
  • oracle jre 1.6.0_171, 1.7.0_161, 1.8.0_151, 6.0.171, 7.0.161, 8.0.151
  • sun java 1.6.0_171, 1.7.0_161, 1.8.0_151, 6.0.171, 7.0.161, 8.0.151
  • sun java_se 1.6.0_171, 1.7.0_161, 1.8.0_151, 6.0.171, 7.0.161, 8.0.151
  • sun jdk 1.6.0_171, 1.7.0_161, 1.8.0_151, 6.0.171, 7.0.161, 8.0.151
  • sun jre 1.6.0_171, 1.7.0_161, 1.8.0_151, 6.0.171, 7.0.161, 8.0.151
  • oracle openjdk 1.6.0_171, 1.7.0_161, 1.8.0_151, 6.0.171, 7.0.161, 8.0.151
  • sun openjdk 1.6.0_171, 1.7.0_161, 1.8.0_151, 6.0.171, 7.0.161, 8.0.151
  • zlib Debian 14, Debian 13, Debian 12 1:1.2.8.dfsg-3
  • rsync Debian 14, Debian 13, Debian 12 3.1.3-6

debian advisories DEBIAN-CVE-2016-9843

  • zlib Ubuntu 16.04 LTS 1:1.2.8.dfsg-2ubuntu4.3
  • klibc Ubuntu 22.04 LTS 2.0.10-4ubuntu0.2
  • klibc Ubuntu 24.04 LTS 2.0.13-4ubuntu0.2
  • klibc Ubuntu 25.10 2.0.14-1ubuntu1.1
  • klibc Ubuntu 26.10, Ubuntu 26.04 LTS 2.0.14-1ubuntu2
  • rsync Ubuntu 16.04 LTS 3.1.1-3ubuntu1.3
  • rsync Ubuntu 18.04 LTS 3.1.2-2.1ubuntu1.1
  • rsync Ubuntu 20.04 LTS 3.1.3-6

ubuntu advisories UBUNTU-CVE-2016-9843

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • java-1.8.0-ibm network satellite 5.8 1:1.8.0.5.5-1jpp.1.el6_9
  • java-1.6.0-sun RHEL 6 EXTRAS_ORACLE_JAVA 1:1.6.0.171-1jpp.4.el6
  • java-1.6.0-sun RHEL 7 EXTRAS_ORACLE_JAVA 1:1.6.0.171-1jpp.4.el7
  • java-1.6.0-sun-src RHEL 6 EXTRAS_ORACLE_JAVA 1:1.6.0.171-1jpp.4.el6
  • java-1.6.0-sun-src RHEL 7 EXTRAS_ORACLE_JAVA 1:1.6.0.171-1jpp.4.el7
  • java-1.6.0-sun-demo RHEL 6 EXTRAS_ORACLE_JAVA 1:1.6.0.171-1jpp.4.el6
  • java-1.6.0-sun-demo RHEL 7 EXTRAS_ORACLE_JAVA 1:1.6.0.171-1jpp.4.el7
  • java-1.6.0-sun-jdbc RHEL 6 EXTRAS_ORACLE_JAVA 1:1.6.0.171-1jpp.4.el6

red hat advisories RHSA-2017:3453RHSA-2017:3047RHSA-2017:3046RHSA-2017:2999RHSA-2017:1222RHSA-2017:1221

  • mariadb104 SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 10.4.30-8.5.46
  • lz4 SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 1.8.0-3.5.2
  • python-mysqlclient SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 1.3.14-8.9.2
  • mariadb-connector-c SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 3.1.22-2.35.1
  • mariadb SLES for SAP 12 SP2, SLES 12 SP2-LTSS, SLES 12 SP2-BCL +6 more 10.0.38-29.27.3
  • mariadb-connector-c OpenStack Cloud 7 3.0.7-1.6.1
  • mariadb OpenStack Cloud 7 10.2.22-10.1
  • mariadb-connector-c OpenStack Cloud Crowbar 8, OpenStack Cloud 8, HPE Helion OpenStack 8 3.0.6-3.6.1

suse advisories SUSE-RU-2023:4991-1SUSE-RU-2023:3956-1SUSE-SU-2019:2048-1SUSE-SU-2019:1441-1SUSE-SU-2019:0628-1SUSE-SU-2019:0555-1

  • perl-Compress-Raw-Zlib openSUSE Tumbleweed 2.213-1.1
  • java-1_8_0-openjdk openSUSE Tumbleweed 1.8.0.302-2.2
  • mariadb openSUSE Leap 15.0 10.2.22-lp150.2.9.1

opensuse advisories openSUSE-SU-2025:14656-1openSUSE-SU-2024:10876-1openSUSE-SU-2019:0327-1

  • perl Alpine 3.6, Alpine 3.5 5.24.3-r1
  • zlib Alpine 3.5, Alpine 3.4, Alpine 3.3 1.2.11-r0
  • mariadb Alpine 3.24, Alpine 3.23, Alpine 3.22 +13 more 10.3.11-r0
  • mariadb Alpine 3.7, Alpine 3.6 10.1.37-r0
  • mariadb Alpine 3.8 10.2.19-r0

alpine advisories ALPINE-CVE-2016-9843

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • fltk Azure Linux 3.0 1.3.8-1

azure linux advisories AZL-44352

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-9843 updated cvss 9.8

zlib: Big-endian out-of-bounds pointer

  • Red Hat Oracle Java for Red Hat Enterprise Linux Client (v. 7) java-1.6.0-sun 1.6.0.171-1jpp.4.el7, java-1.7.0-oracle 1.7.0.161-1jpp.4.el7, java-1.8.0-oracle 1.8.0.151-1jpp.5.el7, java-1.6.0-sun-src 1.6.0.171-1jpp.4.el7, java-1.6.0-sun-demo 1.6.0.171-1jpp.4.el7, java-1.6.0-sun-jdbc 1.6.0.171-1jpp.4.el7, +9 more Red Hat Oracle Java for Red Hat Enterprise Linux Compute Node (v. 7) java-1.6.0-sun 1.6.0.171-1jpp.4.el7, java-1.7.0-oracle 1.7.0.161-1jpp.4.el7, java-1.8.0-oracle 1.8.0.151-1jpp.5.el7, java-1.6.0-sun-src 1.6.0.171-1jpp.4.el7, java-1.6.0-sun-demo 1.6.0.171-1jpp.4.el7, java-1.6.0-sun-jdbc 1.6.0.171-1jpp.4.el7, +5 more Red Hat Oracle Java for Red Hat Enterprise Linux Desktop 6 java-1.6.0-sun 1.6.0.171-1jpp.4.el6, java-1.7.0-oracle 1.7.0.161-1jpp.3.el6, java-1.8.0-oracle 1.8.0.151-1jpp.1.el6, java-1.6.0-sun-src 1.6.0.171-1jpp.4.el6, java-1.6.0-sun-demo 1.6.0.171-1jpp.4.el6, java-1.6.0-sun-jdbc 1.6.0.171-1jpp.4.el6, +9 more Red Hat Oracle Java for Red Hat Enterprise Linux HPC Node 6 java-1.6.0-sun 1.6.0.171-1jpp.4.el6, java-1.7.0-oracle 1.7.0.161-1jpp.3.el6, java-1.8.0-oracle 1.8.0.151-1jpp.1.el6, java-1.6.0-sun-src 1.6.0.171-1jpp.4.el6, java-1.6.0-sun-demo 1.6.0.171-1jpp.4.el6, java-1.6.0-sun-jdbc 1.6.0.171-1jpp.4.el6, +9 more Red Hat Oracle Java for Red Hat Enterprise Linux Server (v. 7) java-1.6.0-sun 1.6.0.171-1jpp.4.el7, java-1.7.0-oracle 1.7.0.161-1jpp.4.el7, java-1.8.0-oracle 1.8.0.151-1jpp.5.el7, java-1.6.0-sun-src 1.6.0.171-1jpp.4.el7, java-1.6.0-sun-demo 1.6.0.171-1jpp.4.el7, java-1.6.0-sun-jdbc 1.6.0.171-1jpp.4.el7, +9 more Red Hat Oracle Java for Red Hat Enterprise Linux Server 6 java-1.6.0-sun 1.6.0.171-1jpp.4.el6, java-1.7.0-oracle 1.7.0.161-1jpp.3.el6, java-1.8.0-oracle 1.8.0.151-1jpp.1.el6, java-1.6.0-sun-src 1.6.0.171-1jpp.4.el6, java-1.6.0-sun-demo 1.6.0.171-1jpp.4.el6, java-1.6.0-sun-jdbc 1.6.0.171-1jpp.4.el6, +9 more
    +2 more products
    Red Hat Oracle Java for Red Hat Enterprise Linux Workstation (v. 7) java-1.6.0-sun 1.6.0.171-1jpp.4.el7, java-1.7.0-oracle 1.7.0.161-1jpp.4.el7, java-1.8.0-oracle 1.8.0.151-1jpp.5.el7, java-1.6.0-sun-src 1.6.0.171-1jpp.4.el7, java-1.6.0-sun-demo 1.6.0.171-1jpp.4.el7, java-1.6.0-sun-jdbc 1.6.0.171-1jpp.4.el7, +9 more Red Hat Oracle Java for Red Hat Enterprise Linux Workstation 6 java-1.6.0-sun 1.6.0.171-1jpp.4.el6, java-1.7.0-oracle 1.7.0.161-1jpp.3.el6, java-1.8.0-oracle 1.8.0.151-1jpp.1.el6, java-1.6.0-sun-src 1.6.0.171-1jpp.4.el6, java-1.6.0-sun-demo 1.6.0.171-1jpp.4.el6, java-1.6.0-sun-jdbc 1.6.0.171-1jpp.4.el6, +9 more
    fixed: vendor fix RHSA-2017:3047
  • Red Hat Enterprise Linux Client Supplementary (v. 7) java-1.7.1-ibm 1.7.1.4.5-1jpp.1.el7_3, java-1.8.0-ibm 1.8.0.4.5-1jpp.1.el7_3, java-1.7.1-ibm-src 1.7.1.4.5-1jpp.1.el7_3, java-1.8.0-ibm-src 1.8.0.4.5-1jpp.1.el7_3, java-1.7.1-ibm-demo 1.7.1.4.5-1jpp.1.el7_3, java-1.7.1-ibm-jdbc 1.7.1.4.5-1jpp.1.el7_3, +4 more Red Hat Enterprise Linux ComputeNode Supplementary (v. 7) java-1.7.1-ibm 1.7.1.4.5-1jpp.1.el7_3, java-1.8.0-ibm 1.8.0.4.5-1jpp.1.el7_3, java-1.7.1-ibm-src 1.7.1.4.5-1jpp.1.el7_3, java-1.8.0-ibm-src 1.8.0.4.5-1jpp.1.el7_3, java-1.7.1-ibm-demo 1.7.1.4.5-1jpp.1.el7_3, java-1.8.0-ibm-demo 1.8.0.4.5-1jpp.1.el7_3
    fixed: vendor fix RHSA-2017:1221
  • Red Hat Enterprise Linux Desktop Supplementary (v. 6) java-1.7.1-ibm 1.7.1.4.5-1jpp.2.el6_9, java-1.8.0-ibm 1.8.0.4.5-1jpp.1.el6_9, java-1.6.0-ibm 1.6.0.16.45-1jpp.1.el6_9, java-1.7.1-ibm-src 1.7.1.4.5-1jpp.2.el6_9, java-1.8.0-ibm-src 1.8.0.4.5-1jpp.1.el6_9, java-1.7.1-ibm-demo 1.7.1.4.5-1jpp.2.el6_9, +10 more Red Hat Enterprise Linux HPC Node Supplementary (v. 6) java-1.7.1-ibm 1.7.1.4.5-1jpp.2.el6_9, java-1.8.0-ibm 1.8.0.4.5-1jpp.1.el6_9, java-1.6.0-ibm 1.6.0.16.45-1jpp.1.el6_9, java-1.7.1-ibm-src 1.7.1.4.5-1jpp.2.el6_9, java-1.8.0-ibm-src 1.8.0.4.5-1jpp.1.el6_9, java-1.7.1-ibm-demo 1.7.1.4.5-1jpp.2.el6_9, +4 more Red Hat Enterprise Linux Server Supplementary (v. 6) java-1.7.1-ibm 1.7.1.4.5-1jpp.2.el6_9, java-1.8.0-ibm 1.8.0.4.5-1jpp.1.el6_9, java-1.6.0-ibm 1.6.0.16.45-1jpp.1.el6_9, java-1.7.1-ibm-src 1.7.1.4.5-1jpp.2.el6_9, java-1.8.0-ibm-src 1.8.0.4.5-1jpp.1.el6_9, java-1.7.1-ibm-demo 1.7.1.4.5-1jpp.2.el6_9, +10 more
    fixed: vendor fix RHSA-2017:1222
  • Red Hat Enterprise Linux Server Supplementary (v. 7) java-1.7.1-ibm 1.7.1.4.5-1jpp.1.el7_3, java-1.8.0-ibm 1.8.0.4.5-1jpp.1.el7_3, java-1.7.1-ibm-src 1.7.1.4.5-1jpp.1.el7_3, java-1.8.0-ibm-src 1.8.0.4.5-1jpp.1.el7_3, java-1.7.1-ibm-demo 1.7.1.4.5-1jpp.1.el7_3, java-1.7.1-ibm-jdbc 1.7.1.4.5-1jpp.1.el7_3, +4 more
    fixed: vendor fix RHSA-2017:1221
  • Red Hat Enterprise Linux Workstation Supplementary (v. 6) java-1.7.1-ibm 1.7.1.4.5-1jpp.2.el6_9, java-1.8.0-ibm 1.8.0.4.5-1jpp.1.el6_9, java-1.6.0-ibm 1.6.0.16.45-1jpp.1.el6_9, java-1.7.1-ibm-src 1.7.1.4.5-1jpp.2.el6_9, java-1.8.0-ibm-src 1.8.0.4.5-1jpp.1.el6_9, java-1.7.1-ibm-demo 1.7.1.4.5-1jpp.2.el6_9, +10 more
    fixed: vendor fix RHSA-2017:1222
  • Red Hat Enterprise Linux Workstation Supplementary (v. 7) java-1.7.1-ibm 1.7.1.4.5-1jpp.1.el7_3, java-1.8.0-ibm 1.8.0.4.5-1jpp.1.el7_3, java-1.7.1-ibm-src 1.7.1.4.5-1jpp.1.el7_3, java-1.8.0-ibm-src 1.8.0.4.5-1jpp.1.el7_3, java-1.7.1-ibm-demo 1.7.1.4.5-1jpp.1.el7_3, java-1.7.1-ibm-jdbc 1.7.1.4.5-1jpp.1.el7_3, +4 more
    fixed: vendor fix RHSA-2017:1221
  • Red Hat Satellite 5.8 (RHEL v.6) java-1.8.0-ibm 1.8.0.5.5-1jpp.1.el6_9 Red Hat Satellite 5.8 ELS (RHEL v.6) java-1.8.0-ibm 1.8.0.5.5-1jpp.1.el6_9
    fixed: vendor fix RHSA-2017:3453
  • Red Hat Enterprise Linux 5 zlib Red Hat Enterprise Linux 6 zlib, minizip Red Hat Enterprise Linux 7 zlib, minizip Red Hat JBoss Enterprise Application Platform 5 zlib Red Hat JBoss Enterprise Application Platform 6 zlib Red Hat JBoss Enterprise Web Server 1 zlib
    +2 more products
    Red Hat JBoss Enterprise Web Server 2 zlib Red Hat JBoss Enterprise Web Server 3 zlib
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-19-155-01 updated cvss 9.8

PHOENIX CONTACT PLCNext AXC F 2152

  • Phoenix Contact AXC F 2152 2404267 version 1.x, 1046568 (Starterkit) version 1.x
    affected: vendor fix, mitigation “Phoenix Contact recommends affected users update to firmware release 2019.0 LTS or later, update to PLCNext Engineer release 2019.0 LTS or later, and apply the following specific mitigations below:” phoenixcontact.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

5.77% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Updated Java versions.