critical
9.8
Advisory Published
CVE 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
debian/rsync
3.2.3-4+deb11u1
3.2.3-4+deb11u3
3.2.7-1
3.2.7-1+deb12u2
3.3.0+ds1-4
debian/zlib
1:1.2.11.dfsg-2+deb11u2
1:1.2.13.dfsg-1
1:1.3.dfsg+really1.3.1-1
tvOS<11
11
macOS High Sierra<10.13
10.13
Apple iOS, iPadOS, and watchOS<11
11
Apple iOS, iPadOS, and watchOS<4
4
zlib>=1.2.0<1.2.9
openSUSE=42.1
openSUSE=42.2
openSUSE=13.2
Debian=8.0
Ubuntu=16.04
Ubuntu=18.04
Oracle Database=18c
Oracle JDK 6=1.6.0-update161
Oracle JDK 6=1.7.0-update151
Oracle JDK 6=1.8.0-update144
Oracle Java Runtime Environment (JRE)=1.6.0-update161
Oracle Java Runtime Environment (JRE)=1.7.0-update151
Oracle Java Runtime Environment (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
redhat satellite=5.8
redhat enterprise Linux desktop=6.0
redhat enterprise Linux desktop=7.0
redhat enterprise Linux eus=7.4
redhat enterprise Linux eus=7.5
redhat enterprise Linux server=6.0
redhat enterprise Linux server=7.0
redhat enterprise Linux workstation=6.0
redhat enterprise Linux workstation=7.0
iOS<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 windows>=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 e-series santricity storage manager
netapp e-series santricity Web services Web services proxy
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 Oracle
netapp snapmanager sap
netapp solidfire
NetApp SteelStore
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 node
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<=8.3.0

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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