Description
Integer underflow in the png_check_keyword function in pngwutil.c in libpng 0.90 through 0.99, 1.0.x before 1.0.66, 1.1.x and 1.2.x before 1.2.56, 1.3.x and 1.4.x before 1.4.19, and 1.5.x before 1.5.26 allows remote attackers to have unspecified impact via a space character as a keyword in a PNG image, which triggers an out-of-bounds read.
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 8 | libpng | 1.2.50-2+deb8u2 | DSA-3443-1 |
| Debian 7 | libpng | 1.2.49-1+deb7u2 | DSA-3443-1 |
| Debian 6.0 | libpng | 1.2.44-1+squeeze6 | DLA-375-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | libpng | 1.2.50-1ubuntu2.14.04.2 | USN-2861-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | java-1.7.1-ibm +5 | 1:1.7.1.3.30-1jpp.1.el7 | RHSA-2016:0099 |
| RHEL 6 | java-1.6.0-ibm +6 | 1:1.6.0.16.20-1jpp.1.el6_7 | RHSA-2016:0101 |
| RHEL 6 | java-1.7.1-ibm +5 | 1:1.7.1.3.30-1jpp.2.el6_7 | RHSA-2016:0099 |
| RHEL 5 | java-1.6.0-ibm +7 | 1:1.6.0.16.20-1jpp.1.el5 | RHSA-2016:0101 |
| RHEL 5 | java-1.7.0-ibm +5 | 1:1.7.0.9.30-1jpp.1.el5 | RHSA-2016:0100 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Network Satellite 5 | java-1.7.0-ibm +1 | 1:1.7.0.9.40-1jpp.1.el5 | RHSA-2016:1430 |
| Red Hat Network Satellite 5 | java-1.7.1-ibm +1 | 1:1.7.1.3.40-1jpp.1.el6_7 | RHSA-2016:1430 |
| Red Hat Network Satellite 5 | spacewalk-java +5 | 2.0.2-109.el5sat | RHSA-2016:1430 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | libpng12 | 1.2.50-19.1 | SUSE-SU-2017:0860-1 |
| SLES 12 SP2 | libpng15 | 1.5.22-9.1 | SUSE-SU-2017:0950-1 |
| SLES 12 SP1 | java-1_7_1-ibm | 1.7.1_sr3.30-21.1 | SUSE-SU-2016:0401-1 |
| SLES 12 SP1 | libpng12 | 1.2.50-19.1 | SUSE-SU-2017:0860-1 |
| SLES 12 SP1 | libpng15 | 1.5.22-9.1 | SUSE-SU-2017:0950-1 |
| SLES 12 | java-1_6_0-ibm | 1.6.0_sr16.20-30.1 | SUSE-SU-2016:0428-1 |
| SLES 12 | java-1_7_1-ibm | 1.7.1_sr3.30-21.1 | SUSE-SU-2016:0401-1 |
| SLES 11 SP4 | java-1_7_1-ibm | 1.7.1_sr3.30-9.1 | SUSE-SU-2016:0399-1 |
| SLES 11 SP4 | libpng12-0 | 1.2.31-5.43.1 | SUSE-SU-2017:0901-1 |
| SLES 11 SP3 | java-1_6_0-ibm | 1.6.0_sr16.20-51.1 | SUSE-SU-2016:0770-1 |
| SLES 11 SP3 | java-1_7_0-ibm | 1.7.0_sr9.30-47.1 | SUSE-SU-2016:0636-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP2 | java-1_6_0-ibm | 1.6.0_sr16.20-49.1 | SUSE-SU-2016:0431-1 |
| SLES 11 SP2 | java-1_7_0-ibm | 1.7.0_sr9.30-45.1 | SUSE-SU-2016:0433-1 |
| SLES for SAP 12 SP2 | libpng12 | 1.2.50-19.1 | SUSE-SU-2017:0860-1 |
| SLES for SAP 12 SP2 | libpng15 | 1.5.22-9.1 | SUSE-SU-2017:0950-1 |
| SLES for SAP 12 SP1 | java-1_7_1-ibm | 1.7.1_sr3.30-21.1 | SUSE-SU-2016:0401-1 |
| SLES for SAP 12 SP1 | libpng12 | 1.2.50-19.1 | SUSE-SU-2017:0860-1 |
| SLES for SAP 12 SP1 | libpng15 | 1.5.22-9.1 | SUSE-SU-2017:0950-1 |
| SLES for SAP 12 | java-1_7_1-ibm | 1.7.1_sr3.30-21.1 | SUSE-SU-2016:0401-1 |
| SLES for SAP 11 SP4 | java-1_7_1-ibm | 1.7.1_sr3.30-9.1 | SUSE-SU-2016:0399-1 |
| SLES for SAP 11 SP4 | libpng12-0 | 1.2.31-5.43.1 | SUSE-SU-2017:0901-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | libpng +2 | 2:1.5.13-8.amzn2.0.1 | ALAS2-2023-1904 |
Advisories 19
- RHSA-2016:1430 Red Hat Security Advisory: java-1.7.0-ibm and java-1.7.1-ibm security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2016:0101 Red Hat Security Advisory: java-1.6.0-ibm security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2016:0099 Red Hat Security Advisory: java-1.7.1-ibm security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2016:0100 Red Hat Security Advisory: java-1.7.0-ibm security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- WID-SEC-2023-0175 libpng: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jun 28, 2026
- USN-2861-1 libpng vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-375-1 libpng - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3443-1 libpng - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2016:0428-1 Security update for java-1_6_0-ibm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0770-1 Security update for java-1_6_0-ibm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0950-1 Security update for libpng15 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0399-1 Security update for java-1_7_1-ibm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0901-1 Security update for libpng12-0 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0860-1 Security update for libpng12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0431-1 Security update for java-1_6_0-ibm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0433-1 Security update for java-1_7_0-ibm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0401-1 Security update for java-1_7_1-ibm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0636-1 Security update for java-1_7_0-ibm SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2-2023-1904 Important: libpng security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jan 20, 2023
References
- http://sourceforge.net/projects/libpng/files/libpng10/1.0.66/
- GLSA-201611-08 vendor-advisory
- [oss-security] 20151211 Re: Re: CVE request - read underflow in libpng 1.2.55, 1.0.65, 1.4.18, and 1.5.25 (pngwutil.c) mailing-list
- http://sourceforge.net/p/libpng/code/ci/d9006f683c641793252d92254a75ae9b815b42ed/
- http://sourceforge.net/projects/libpng/files/libpng15/1.5.26/
- RHSA-2016:1430 vendor-advisory
- [oss-security] 20151210 CVE request - read underflow in libpng 1.2.55, 1.0.65, 1.4.18, and 1.5.25 (pngwutil.c) mailing-list
- http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
- http://sourceforge.net/projects/libpng/files/libpng14/1.4.19/
- [oss-security] 20151211 Re: CVE request - read underflow in libpng 1.2.55, 1.0.65, 1.4.18, and 1.5.25 (pngwutil.c) mailing-list
- [oss-security] 20151210 Re: CVE request - read underflow in libpng 1.2.55, 1.0.65, 1.4.18, and 1.5.25 (pngwutil.c) mailing-list
- http://sourceforge.net/projects/libpng/files/libpng12/1.2.56/
- DSA-3443 vendor-advisory
- http://sourceforge.net/p/libpng/bugs/244/
- 80592 vdb-entry
- [oss-security] 20151217 Re: CVE request - read underflow in libpng 1.2.55, 1.0.65, 1.4.18, and 1.5.25 (pngwutil.c) mailing-list
- FEDORA-2015-3868cfa17b vendor-advisory
- [bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8 mailing-list
- [bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8 mailing-list