critical
CVE-2016-9841
zlib: Out-of-bounds pointer arithmetic in inffast.c
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Trivy's own label is CRITICAL. Rated critical by NVD, Azure Linux, Photon OS. Rated lower by Red Hat (low), Ubuntu (low).
Description
inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| Azure Linux 3.0 | fltk | 0:1.3.8-1.azl3 |
| Photon OS 1.0 | zlib | 1.2.8-5.ph1 |
| alpine 3.3 | zlib | 1.2.11-r0 |
| alpine 3.4 | zlib | 1.2.11-r0 |
| alpine 3.5 | perl, zlib | 5.24.3-r1 and 1 more |
| alpine 3.6 | perl | 5.24.3-r1 |
| chainguard | mysql-8.0, openjdk-11-openj9, openjdk-17-openj9 and 4 more | 8.0.38-r0 and 3 more |
| debian 11 | rsync, zlib | 3.1.3-6 and 1 more |
| debian 12 | rsync, zlib | 3.1.3-6 and 1 more |
| debian 13 | rsync, zlib | 3.1.3-6 and 1 more |
| debian 14 | rsync, zlib | 3.1.3-6 and 1 more |
| debian 7 | zlib | no fix listed |
Show all 81 entries from 41 sources
| Source | Package | Fixed in |
|---|---|---|
| Azure Linux 3.0 | fltk | 0:1.3.8-1.azl3 |
| Photon OS 1.0 | zlib | 1.2.8-5.ph1 |
| alpine 3.3 | zlib | 1.2.11-r0 |
| alpine 3.4 | zlib | 1.2.11-r0 |
| alpine 3.5 | perl | 5.24.3-r1 |
| alpine 3.5 | zlib | 1.2.11-r0 |
| alpine 3.6 | perl | 5.24.3-r1 |
| chainguard | mysql-8.0 | 8.0.38-r0 |
| chainguard | openjdk-11-openj9 | 0.53.0-r0 |
| chainguard | openjdk-17-openj9 | 0.53.0-r0 |
| chainguard | openjdk-21-openj9 | 0.53.0-r0 |
| chainguard | openjdk-25-openj9 | 0.59.0-r1 |
| chainguard | openjdk-26-openj9 | 0.59.0-r1 |
| chainguard | openjdk-8-openj9 | 0.53.0-r1 |
| debian 11 | rsync | 3.1.3-6 |
| debian 11 | zlib | 1:1.2.8.dfsg-4 |
| debian 12 | rsync | 3.1.3-6 |
| debian 12 | zlib | 1:1.2.8.dfsg-4 |
| debian 13 | rsync | 3.1.3-6 |
| debian 13 | zlib | 1:1.2.8.dfsg-4 |
| debian 14 | rsync | 3.1.3-6 |
| debian 14 | zlib | 1:1.2.8.dfsg-4 |
| debian 7 | zlib | no fix listed |
| debian 8 | rsync | 3.1.1-3+deb8u2 |
| debian 8 | zlib | 1:1.2.8.dfsg-2+deb8u1 |
| debian 9 | rsync | 3.1.2-1+deb9u2 |
| echo | rsync | 3.1.3-6 |
| echo | zlib | 1:1.2.8.dfsg-4 |
| rapidfort fedora 43 | python3.15 | 3.15.0-1.fc43 |
| rapidfort fedora 43 | python3.15-debug | 3.15.0-1.fc43 |
| rapidfort fedora 43 | python3.15-devel | 3.15.0-1.fc43 |
| rapidfort fedora 43 | python3.15-freethreading | 3.15.0-1.fc43 |
| rapidfort fedora 43 | python3.15-freethreading-debug | 3.15.0-1.fc43 |
| rapidfort fedora 43 | python3.15-freethreading-devel | 3.15.0-1.fc43 |
| rapidfort fedora 43 | python3.15-freethreading-idle | 3.15.0-1.fc43 |
| rapidfort fedora 43 | python3.15-freethreading-libs | 3.15.0-1.fc43 |
| rapidfort fedora 43 | python3.15-freethreading-test | 3.15.0-1.fc43 |
| rapidfort fedora 43 | python3.15-freethreading-tkinter | 3.15.0-1.fc43 |
| rapidfort fedora 43 | python3.15-idle | 3.15.0-1.fc43 |
| rapidfort fedora 43 | python3.15-libs | 3.15.0-1.fc43 |
| rapidfort fedora 43 | python3.15-test | 3.15.0-1.fc43 |
| rapidfort fedora 43 | python3.15-tkinter | 3.15.0-1.fc43 |
| root.io debian 11 | rootio-zlib | 1:1.2.8.dfsg-4 |
| root.io debian 12 | rootio-zlib | 1:1.2.8.dfsg-4 |
| root.io debian 13 | rootio-zlib | 1:1.2.8.dfsg-4 |
| ubuntu 14.04-ESM | klibc | 2.0.3-0ubuntu1.14.04.3+esm3 |
| ubuntu 16.04 | rsync | 3.1.1-3ubuntu1.3 |
| ubuntu 16.04 | zlib | 1:1.2.8.dfsg-2ubuntu4.3 |
| ubuntu 16.04-ESM | klibc | 2.0.4-8ubuntu1.16.04.4+esm2 |
| ubuntu 16.04-ESM | rsync | 3.1.1-3ubuntu1.3 |
| ubuntu 16.04-ESM | zlib | 1:1.2.8.dfsg-2ubuntu4.3 |
| ubuntu 18.04 | rsync | 3.1.2-2.1ubuntu1.1 |
| ubuntu 18.04-ESM | klibc | 2.0.4-9ubuntu2.2+esm1 |
| ubuntu 18.04-ESM | rsync | 3.1.2-2.1ubuntu1.1 |
| ubuntu 19.04 | rsync | 3.1.3-6 |
| ubuntu 19.10 | rsync | 3.1.3-6 |
| ubuntu 20.04 | klibc | 2.0.7-1ubuntu5.2 |
| ubuntu 20.04 | rsync | 3.1.3-6 |
| ubuntu 20.04-ESM | klibc | 2.0.7-1ubuntu5.2 |
| ubuntu 20.04-ESM | rsync | 3.1.3-6 |
| ubuntu 20.10 | rsync | 3.1.3-6 |
| ubuntu 21.04 | rsync | 3.1.3-6 |
| ubuntu 21.10 | rsync | 3.1.3-6 |
| ubuntu 22.04 | klibc | 2.0.10-4ubuntu0.1 |
| ubuntu 22.04 | rsync | 3.1.3-6 |
| ubuntu 22.10 | rsync | 3.1.3-6 |
| ubuntu 23.04 | rsync | 3.1.3-6 |
| ubuntu 23.10 | klibc | 2.0.13-1ubuntu0.1 |
| ubuntu 23.10 | rsync | 3.1.3-6 |
| ubuntu 24.04 | klibc | 2.0.13-4ubuntu0.1 |
| ubuntu 24.04 | rsync | 3.1.3-6 |
| ubuntu 24.10 | klibc | 2.0.13-4ubuntu1 |
| ubuntu 24.10 | rsync | 3.1.3-6 |
| ubuntu 25.04 | klibc | 2.0.13-4ubuntu1 |
| ubuntu 25.04 | rsync | 3.1.3-6 |
| ubuntu 25.10 | klibc | 2.0.13-4ubuntu1 |
| ubuntu 25.10 | rsync | 3.1.3-6 |
| ubuntu 26.04 | klibc | 2.0.13-4ubuntu1 |
| ubuntu 26.04 | rsync | 3.1.3-6 |
| ubuntu 26.10 | klibc | 2.0.13-4ubuntu1 |
| ubuntu 26.10 | rsync | 3.1.3-6 |
References
- 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
All 42 references
- 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://access.redhat.com/security/cve/CVE-2016-9841
- https://bugzilla.redhat.com/show_bug.cgi?id=1402346
- https://cert-portal.siemens.com/productcert/html/ssa-470355.html
- https://docs.google.com/document/d/10i1KZS5so8xDqH2rplRa2xet0tyTvvJlLbQQmZIUIKE/edit#heading=h.t13tvnx4loq7
- 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://nvd.nist.gov/vuln/detail/CVE-2016-9841
- 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://ubuntu.com/security/notices/USN-4246-1
- https://ubuntu.com/security/notices/USN-4292-1
- https://ubuntu.com/security/notices/USN-6736-1
- https://ubuntu.com/security/notices/USN-6736-2
- 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.cve.org/CVERecord?id=CVE-2016-9841
- https://www.oracle.com/security-alerts/cpujul2020.html