Description
The inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving left shifts of negative integers.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | rsync | 3.1.3-6 | — |
| Debian 14 | zlib | 1:1.2.8.dfsg-3 | — |
| Debian 13 | rsync | 3.1.3-6 | — |
| Debian 13 | zlib | 1:1.2.8.dfsg-3 | — |
| Debian 12 | rsync | 3.1.3-6 | — |
| Debian 12 | zlib | 1:1.2.8.dfsg-3 | — |
| Debian 8 | rsync | 3.1.1-3+deb8u2 | DLA-1725-1 |
| Debian 8 | zlib | 1:1.2.8.dfsg-2+deb8u1 | DLA-2085-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | zsync | No fix yet | — |
| Ubuntu 26.04 LTS | zsync | No fix yet | — |
| Ubuntu 25.10 | zsync | No fix yet | — |
| Ubuntu 24.04 LTS | zsync | No fix yet | — |
| Ubuntu 22.04 LTS | zsync | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | rsync | 3.1.3-6 | — |
| Ubuntu 20.04 LTS | zsync | No fix yet | — |
| Ubuntu 18.04 LTS | rsync | 3.1.2-2.1ubuntu1.1 | USN-4292-1 |
| Ubuntu 18.04 LTS | zsync | No fix yet | — |
| Ubuntu 16.04 LTS | rsync | 3.1.1-3ubuntu1.3 | USN-4292-1 |
| Ubuntu 16.04 LTS | zlib | 1:1.2.8.dfsg-2ubuntu4.3 | USN-4246-1 |
| Ubuntu 16.04 LTS | zsync | No fix yet | — |
| Ubuntu Pro 14.04 LTS | zlib | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | java-1.7.1-ibm +5 | 1:1.7.1.4.5-1jpp.1.el7_3 | RHSA-2017:1221 |
| RHEL 7 | java-1.8.0-ibm +5 | 1:1.8.0.4.5-1jpp.1.el7_3 | RHSA-2017:1220 |
| RHEL 6 | java-1.6.0-ibm +6 | 1:1.6.0.16.45-1jpp.1.el6_9 | RHSA-2017:1222 |
| RHEL 6 | java-1.7.1-ibm +5 | 1:1.7.1.4.5-1jpp.2.el6_9 | RHSA-2017:1221 |
| RHEL 6 | java-1.8.0-ibm +5 | 1:1.8.0.4.5-1jpp.1.el6_9 | RHSA-2017:1220 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Extras Oracle Java 7 | java-1.6.0-sun +5 | 1:1.6.0.171-1jpp.4.el7 | RHSA-2017:3047 |
| Red Hat Rhel Extras Oracle Java 7 | java-1.7.0-oracle +5 | 1:1.7.0.161-1jpp.4.el7 | RHSA-2017:3046 |
| Red Hat Rhel Extras Oracle Java 7 | java-1.8.0-oracle +5 | 1:1.8.0.151-1jpp.5.el7 | RHSA-2017:2999 |
| Red Hat Rhel Extras Oracle Java 6 | java-1.6.0-sun +5 | 1:1.6.0.171-1jpp.4.el6 | RHSA-2017:3047 |
| Red Hat Rhel Extras Oracle Java 6 | java-1.7.0-oracle +5 | 1:1.7.0.161-1jpp.3.el6 | RHSA-2017:3046 |
| Red Hat Rhel Extras Oracle Java 6 | java-1.8.0-oracle +5 | 1:1.8.0.151-1jpp.1.el6 | RHSA-2017:2999 |
| Red Hat Network Satellite 5 | java-1.8.0-ibm +1 | 1:1.8.0.5.5-1jpp.1.el6_9 | RHSA-2017:3453 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | java-1_7_0-openjdk | 1.7.0.161-43.7.6 | SUSE-SU-2018:0005-1 |
| SLES 12 SP3 | java-1_8_0-openjdk | 1.8.0.151-27.8.1 | SUSE-SU-2017:2989-1 |
| SLES 12 SP2 | java-1_7_0-openjdk | 1.7.0.161-43.7.6 | SUSE-SU-2018:0005-1 |
| SLES 12 SP2 | java-1_7_1-ibm | 1.7.1_sr4.5-37.1 | SUSE-SU-2017:1385-1 |
| SLES 12 SP2 | java-1_8_0-ibm | 1.8.0_sr4.5-29.1 | SUSE-SU-2017:1386-1 |
| SLES 12 SP2 | java-1_8_0-openjdk | 1.8.0.151-27.8.1 | SUSE-SU-2017:2989-1 |
| SLES 12 SP2 | zlib | 1.2.8-11.1 | SUSE-SU-2017:0003-1 |
| SLES 12 SP1 | java-1_7_0-openjdk | 1.7.0.161-43.7.6 | SUSE-SU-2018:0005-1 |
| SLES 12 SP1 | java-1_7_1-ibm | 1.7.1_sr4.5-37.1 | SUSE-SU-2017:1385-1 |
| SLES 12 SP1 | java-1_8_0-ibm | 1.8.0_sr4.5-29.1 | SUSE-SU-2017:1386-1 |
| SLES 12 SP1 | java-1_8_0-openjdk | 1.8.0.151-27.8.1 | SUSE-SU-2017:2989-1 |
| SLES 12 SP1 | zlib | 1.2.8-6.3.1 | SUSE-SU-2017:0004-1 |
| SLES 12 | java-1_6_0-ibm | 1.6.0_sr16.45-49.1 | SUSE-SU-2017:1389-1 |
| SLES 12 | java-1_7_0-openjdk | 1.7.0.161-43.7.6 | SUSE-SU-2018:0005-1 |
| SLES 12 | java-1_7_1-ibm | 1.7.1_sr4.5-37.1 | SUSE-SU-2017:1385-1 |
| SLES 11 SP4 | java-1_7_1-ibm | 1.7.1_sr4.5-25.1 | SUSE-SU-2017:1387-1 |
| SLES 11 SP4 | zlib | 1.2.7-0.14.1 | SUSE-SU-2016:3209-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP3 | java-1_6_0-ibm | 1.6.0_sr16.45-84.1 | SUSE-SU-2017:1444-1 |
| SLES 11 SP3 | java-1_7_0-ibm | 1.7.0_sr10.5-64.1 | SUSE-SU-2017:1384-1 |
| SUSE Studio Onsite 1.3 | zlib | 1.2.7-0.135.3.1 | SUSE-SU-2018:1815-1 |
| SLES for SAP 12 SP3 | java-1_7_0-openjdk | 1.7.0.161-43.7.6 | SUSE-SU-2018:0005-1 |
| SLES for SAP 12 SP3 | java-1_8_0-openjdk | 1.8.0.151-27.8.1 | SUSE-SU-2017:2989-1 |
| SLES for SAP 12 SP2 | java-1_7_0-openjdk | 1.7.0.161-43.7.6 | SUSE-SU-2018:0005-1 |
| SLES for SAP 12 SP2 | java-1_7_1-ibm | 1.7.1_sr4.5-37.1 | SUSE-SU-2017:1385-1 |
| SLES for SAP 12 SP2 | java-1_8_0-ibm | 1.8.0_sr4.5-29.1 | SUSE-SU-2017:1386-1 |
| SLES for SAP 12 SP2 | java-1_8_0-openjdk | 1.8.0.151-27.8.1 | SUSE-SU-2017:2989-1 |
| SLES for SAP 12 SP2 | zlib | 1.2.8-11.1 | SUSE-SU-2017:0003-1 |
| SLES for SAP 12 SP1 | java-1_7_0-openjdk | 1.7.0.161-43.7.6 | SUSE-SU-2018:0005-1 |
| SLES for SAP 12 SP1 | java-1_7_1-ibm | 1.7.1_sr4.5-37.1 | SUSE-SU-2017:1385-1 |
| SLES for SAP 12 SP1 | java-1_8_0-ibm | 1.8.0_sr4.5-29.1 | SUSE-SU-2017:1386-1 |
| SLES for SAP 12 SP1 | java-1_8_0-openjdk | 1.8.0.151-27.8.1 | SUSE-SU-2017:2989-1 |
| SLES for SAP 12 SP1 | zlib | 1.2.8-6.3.1 | SUSE-SU-2017:0004-1 |
| SLES for SAP 12 | java-1_7_0-openjdk | 1.7.0.161-43.7.6 | SUSE-SU-2018:0005-1 |
| SLES for SAP 12 | java-1_7_1-ibm | 1.7.1_sr4.5-37.1 | SUSE-SU-2017:1385-1 |
| SLES for SAP 11 SP4 | java-1_7_1-ibm | 1.7.1_sr4.5-25.1 | SUSE-SU-2017:1387-1 |
| SLES for SAP 11 SP4 | zlib | 1.2.7-0.14.1 | SUSE-SU-2016:3209-1 |
| SUSE OpenStack Cloud 6 | java-1_7_0-openjdk | 1.7.0.161-43.7.6 | SUSE-SU-2018:0005-1 |
| SUSE OpenStack Cloud 6 | java-1_8_0-openjdk | 1.8.0.151-27.8.1 | SUSE-SU-2017:2989-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | java-1_6_0-ibm | 1.6.0_sr16.45-84.1 | SUSE-SU-2017:1444-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | java-1_7_0-ibm | 1.7.0_sr10.5-64.1 | SUSE-SU-2017:1384-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.6 | perl | 5.24.3-r1 | — |
| Alpine v3.5 | perl | 5.24.3-r1 | — |
| Alpine v3.5 | zlib | 1.2.11-r0 | — |
| Alpine v3.4 | zlib | 1.2.11-r0 | — |
| Alpine v3.3 | zlib | 1.2.11-r0 | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | fltk | 1.3.8-1 | — |
| Azure Linux 3 | openjpeg2 | No fix yet | — |
Advisories 32
- RHSA-2017:3453 Red Hat Security Advisory: java-1.8.0-ibm security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2017:3047 Red Hat Security Advisory: java-1.6.0-sun security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2017:2999 Red Hat Security Advisory: java-1.8.0-oracle security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2017:3046 Red Hat Security Advisory: java-1.7.0-oracle security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2017:1222 Red Hat Security Advisory: java-1.6.0-ibm security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2017:1220 Red Hat Security Advisory: java-1.8.0-ibm security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2017:1221 Red Hat Security Advisory: java-1.7.1-ibm security update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- ICSA-26-202-06 Siemens CADRA CISA ICS & IT advisories · Jul 21, 2026
- NCSC-2026-0229 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Jul 14, 2026
- SSA-470355 SSA-470355: Zlib and Foxit Vulnerabilities in CADRA Siemens ProductCERT · Jul 14, 2026
- WID-SEC-2026-0915 Kyocera Drucker: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 1, 2026
- USN-4292-1 rsync vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- USN-4246-1 zlib vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-2085-1 zlib - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1725-1 rsync - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2017:1444-1 Security update for java-1_6_0-ibm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:1815-1 Security update for zlib SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0003-1 Security update for zlib SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:1389-1 Security update for java-1_6_0-ibm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:1387-1 Security update for java-1_7_1-ibm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:3209-1 Security update for zlib SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:1386-1 Security update for java-1_8_0-ibm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2989-1 Security update for java-1_8_0-openjdk SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:1384-1 Security update for java-1_7_0-ibm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0005-1 Security update for java-1_7_0-openjdk SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0004-1 Security update for zlib SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2026-0180 Dell Data Protection Advisor: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 20, 2026
- WID-SEC-2024-1232 Rsync: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 17, 2025
- VDE-2019-009 PHOENIX CONTACT: Multiple Vulnerabilities in AXC F 2152 CERT@VDE · May 22, 2025
- SUSE-SU-2017:1385-1 Security update for java-1_7_1-ibm SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2025-0370 Apple Mac OS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 13, 2025
- ICSA-19-155-01 PHOENIX CONTACT PLCNext AXC F 2152 CISA ICS & IT advisories · Jun 4, 2019
References
- RHSA-2017:1221 vendor-advisory
- RHSA-2017:1220 vendor-advisory
- RHSA-2017:3047 vendor-advisory
- [oss-security] 20161205 Re: CVE Request: zlib security issues found during audit mailing-list
- 95131 vdb-entry
- RHSA-2017:3046 vendor-advisory
- openSUSE-SU-2017:0077 vendor-advisory
- GLSA-201701-56 vendor-advisory
- 1039427 vdb-entry
- RHSA-2017:1222 vendor-advisory
- openSUSE-SU-2017:0080 vendor-advisory
- RHSA-2017:3453 vendor-advisory
- openSUSE-SU-2016:3202 vendor-advisory
- RHSA-2017:2999 vendor-advisory
- [debian-lts-announce] 20190324 [SECURITY] [DLA 1725-1] rsync security update mailing-list
- USN-4246-1 vendor-advisory
- [debian-lts-announce] 20200129 [SECURITY] [DLA 2085-1] zlib security update mailing-list
- USN-4292-1 vendor-advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- https://www.oracle.com/security-alerts/cpujul2020.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- https://support.apple.com/HT208144
- https://wiki.mozilla.org/MOSS/Secure_Open_Source/Completed#zlib
- https://support.apple.com/HT208113
- https://support.apple.com/HT208112
- https://support.apple.com/HT208115
- https://wiki.mozilla.org/images/0/09/Zlib-report.pdf
- https://bugzilla.redhat.com/show_bug.cgi?id=1402348
- https://github.com/madler/zlib/commit/e54e1299404101a5a9d0cf5e45512b543967f958
- GLSA-202007-54 vendor-advisory