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Vulnerability record · CVE-2016-9841 · published 23 May 2017

CVE-2016-9841: Zlib vulnerability

Zlib · Zlib

inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.

9.8 CVSS 3.1 Critical EPSS 7.6% · top 5.7%
9.8CVSS 3.1 base score, v2 7.5
7.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
39Affected product versions listed by NVD
67References
14 Jul 2026Last modified by NVD

Description

inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

39 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-updates/2016-12/msg00127.html
http://lists.opensuse.org/opensuse-updates/2017-01/msg00050.html
http://lists.opensuse.org/opensuse-updates/2017-01/msg00053.html
http://www.openwall.com/lists/oss-security/2016/12/05/21
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securityfocus.com/bid/95131
http://www.securitytracker.com/id/1039427
http://www.securitytracker.com/id/1039596
https://access.redhat.com/errata/RHSA-2017:1220
https://access.redhat.com/errata/RHSA-2017:1221
https://access.redhat.com/errata/RHSA-2017:1222
https://access.redhat.com/errata/RHSA-2017:2999
https://access.redhat.com/errata/RHSA-2017:3046
https://access.redhat.com/errata/RHSA-2017:3047
https://access.redhat.com/errata/RHSA-2017:3453
https://bugzilla.redhat.com/show_bug.cgi?id=1402346
https://github.com/madler/zlib/commit/9aaec95e82117c1cb0f9624264c3618fc380cecb
https://lists.debian.org/debian-lts-announce/2019/03/msg00027.html
https://lists.debian.org/debian-lts-announce/2020/01/msg00030.html
https://security.gentoo.org/glsa/201701-56
https://security.gentoo.org/glsa/202007-54
https://security.netapp.com/advisory/ntap-20171019-0001/
https://support.apple.com/HT208112
https://support.apple.com/HT208113
https://support.apple.com/HT208115
https://support.apple.com/HT208144
https://usn.ubuntu.com/4246-1/
https://usn.ubuntu.com/4292-1/
https://wiki.mozilla.org/MOSS/Secure_Open_Source/Completed#zlib
https://wiki.mozilla.org/images/0/09/Zlib-report.pdf
https://www.oracle.com/security-alerts/cpujul2020.html
http://lists.opensuse.org/opensuse-updates/2016-12/msg00127.html
http://lists.opensuse.org/opensuse-updates/2017-01/msg00050.html
http://lists.opensuse.org/opensuse-updates/2017-01/msg00053.html
http://www.openwall.com/lists/oss-security/2016/12/05/21
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html

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Source: NIST National Vulnerability Database (record CVE-2016-9841), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.