critical
9.8
Advisory Published
CVE Published
Advisory Published
Updated

CVE-2016-9841

First published: Wed Dec 07 2016(Updated: )

An old inffast.c optimization turns out to not be optimal anymore with modern compilers, and furthermore was not compliant with the C standard, for which decrementing a pointer before its allocated memory is undefined. External References: <a href="https://wiki.mozilla.org/images/0/09/Zlib-report.pdf">https://wiki.mozilla.org/images/0/09/Zlib-report.pdf</a> <a href="https://docs.google.com/document/d/10i1KZS5so8xDqH2rplRa2xet0tyTvvJlLbQQmZIUIKE/edit#heading=h.t13tvnx4loq7">https://docs.google.com/document/d/10i1KZS5so8xDqH2rplRa2xet0tyTvvJlLbQQmZIUIKE/edit#heading=h.t13tvnx4loq7</a> Upstream patch: <a href="https://github.com/madler/zlib/commit/9aaec95e82117c1cb0f9624264c3618fc380cecb">https://github.com/madler/zlib/commit/9aaec95e82117c1cb0f9624264c3618fc380cecb</a> CVE assignment: <a href="http://seclists.org/oss-sec/2016/q4/602">http://seclists.org/oss-sec/2016/q4/602</a>

Credit: CVE-2016-9840 CVE-2016-9841 CVE-2016-9842 CVE-2016-9843 CVE-2016-9840 CVE-2016-9841 CVE-2016-9842 CVE-2016-9843 security@opentext.com meissner@suse.de

Affected SoftwareAffected VersionHow to fix
redhat/zlib<1.2.9
1.2.9
tvOS<11
11
macOS High Sierra<10.13
10.13
Apple iOS, iPadOS, and watchOS<4
4
Apple iOS and iPadOS<11
11
Zlib>=1.2.0<1.2.9
SUSE Linux=42.1
SUSE Linux=42.2
openSUSE=13.2
Debian Linux=8.0
Ubuntu=16.04
Ubuntu=18.04
Oracle Database=18c
Oracle Java SE 7=1.6.0-update161
Oracle Java SE 7=1.7.0-update151
Oracle Java SE 7=1.8.0-update144
Oracle JRE=1.6.0-update161
Oracle JRE=1.7.0-update151
Oracle JRE=1.8.0-update144
MySQL>=5.5.0<=5.5.61
MySQL>=5.6.0<=5.6.41
MySQL>=5.7.0<=5.7.23
MySQL>=8.0.0<=8.0.12
Red Hat Satellite=5.8
Red Hat Enterprise Linux Desktop=6.0
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server EUS=7.4
Red Hat Enterprise Linux Server EUS=7.5
Red Hat Enterprise Linux Server=6.0
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Workstation=6.0
Red Hat Enterprise Linux Workstation=7.0
iPhone OS<11
Apple iOS and macOS>=10.0.0<10.13.0
tvOS<11.0
Apple iOS, iPadOS, and watchOS<4
NetApp Active IQ Unified Manager>=7.3
NetApp Active IQ Unified Manager for VMware vSphere>=9.5
NetApp Cloud Backup
NetApp E-Series SANtricity Management
NetApp E-Series SANtricity Management
NetApp E-Series SANtricity Management for VMware vCenter
NetApp E-Series SANtricity OS Controller>=11.0.0<=11.70.1
NetApp SANtricity Storage Manager
NetApp E-Series SANtricity Web Services
NetApp OnCommand Balance
NetApp OnCommand Insight
NetApp OnCommand Performance Manager
NetApp OnCommand Shift
NetApp OnCommand Unified Manager for vSphere<=7.1
NetApp OnCommand Unified Manager for Windows<=7.1
NetApp OnCommand Unified Manager for 7-Mode
NetApp OnCommand Workflow Automation
NetApp SnapManager for Oracle
NetApp SnapManager for SAP
NetApp SolidFire & HCI Storage Node
NetApp SteelStore Cloud Integrated Storage
NetApp Storage Replication Adapter for Clustered Data ONTAP for VMware vSphere
Symantec NetBackup
NetApp VASA Provider>=7.2
NetApp Virtual Storage Console for VMware vSphere
NetApp HCI Storage Nodes
Node.js>=4.0.0<=4.1.2
Node.js>=4.2.0<4.8.2
Node.js>=6.0.0<=6.8.1
Node.js>=6.9.0<6.10.2
Node.js>=7.0.0<7.6.0
F5 BIG-IP and BIG-IQ Centralized Management>=17.1.0<=17.1.2
F5 BIG-IP and BIG-IQ Centralized Management>=16.1.0<=16.1.5
F5 BIG-IP and BIG-IQ Centralized Management>=15.1.0<=15.1.10
F5 Access Policy Manager>=7.2.4<=7.2.5
F5 BIG-IP and BIG-IQ Centralized Management>=8.2.0<=8.4.0
debian/rsync
3.2.3-4+deb11u1
3.2.3-4+deb11u3
3.2.7-1+deb12u2
3.4.1+ds1-3
debian/zlib
1:1.2.11.dfsg-2+deb11u2
1:1.2.13.dfsg-1
1:1.3.dfsg+really1.3.1-1

Remedy

http://www.openwall.com/lists/oss-security/2016/12/05/21

Remedy

http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html

Remedy

http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html

Remedy

http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html

Remedy

https://github.com/madler/zlib/commit/9aaec95e82117c1cb0f9624264c3618fc380cecb

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2016-9841?

    CVE-2016-9841 has been classified as a moderate severity vulnerability due to its compliance issues with the C standard.

  • How do I fix CVE-2016-9841?

    To fix CVE-2016-9841, update to a version of affected software that is compliant, such as zlib 1.2.10 or later.

  • Which versions are affected by CVE-2016-9841?

    CVE-2016-9841 affects several versions of software including zlib versions prior to 1.2.10 and Apple products running macOS versions up to 10.13.

  • Who is affected by CVE-2016-9841?

    Users of Apple iOS, macOS, watchOS, and various Linux distributions with vulnerable zlib versions are affected by CVE-2016-9841.

  • What are the potential implications of CVE-2016-9841?

    The implications of CVE-2016-9841 may include instability or unexpected behavior in applications utilizing the vulnerable zlib library.

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