Description
Memory leak in pngrutil.c in libpng before 1.2.44, and 1.4.x before 1.4.3, allows remote attackers to cause a denial of service (memory consumption and application crash) via a PNG image containing malformed Physical Scale (aka sCAL) chunks.
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 12 | tuxonice-userui | 1.0-1 | — |
| Debian 5.0 | libpng | 1.2.27-2+lenny4 | DSA-2072-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | libpng +1 | 2:1.2.10-7.1.el5_5.3 | RHSA-2010:0534 |
| RHEL 4 | libpng +1 | 2:1.2.7-3.el4_8.3 | RHSA-2010:0534 |
| RHEL 4 | libpng10 +1 | 1.0.16-3.el4_8.4 | RHSA-2010:0534 |
| RHEL 3 | libpng +1 | 2:1.2.2-30 | RHSA-2010:0534 |
| RHEL 3 | libpng10 +1 | 1.0.13-21 | RHSA-2010:0534 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | libpng12 | No fix yet | — |
| Azure Linux 3 | syslinux | libpng-1.2.44 | — |
| Azure Linux 2 (CBL-Mariner) | libpng12 | No fix yet | — |
Advisories 2
- RHSA-2010:0534 Red Hat Security Advisory: libpng security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-2072-1 libpng - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng%3Ba=commitdiff%3Bh=90cfcecc09febb8d6c8c1d37ea7bb7cf0f4b00f3#patch20
- MDVSA-2010:133 vendor-advisory
- http://www.vmware.com/security/advisories/VMSA-2010-0014.html
- 41174 vdb-entry
- ADV-2010-1877 vdb-entry
- ADV-2010-3045 vdb-entry
- 1024723 vdb-entry
- http://support.apple.com/kb/HT4435
- ADV-2010-1837 vdb-entry
- http://support.apple.com/kb/HT4457
- ADV-2010-1755 vdb-entry
- ADV-2010-3046 vdb-entry
- 40472 third-party-advisory
- http://support.apple.com/kb/HT4566
- https://bugzilla.redhat.com/show_bug.cgi?id=608644
- 40302 third-party-advisory
- APPLE-SA-2010-11-10-1 vendor-advisory
- 40336 third-party-advisory
- libpng-scal-dos(59816) vdb-entry
- 41574 third-party-advisory
- USN-960-1 vendor-advisory
- http://www.libpng.org/pub/png/libpng.html
- APPLE-SA-2011-03-02-1 vendor-advisory
- 42317 third-party-advisory
- [security-announce] 20100923 VMSA-2010-0014 VMware Workstation, Player, and ACE address several security issues mailing-list
- FEDORA-2010-10823 vendor-advisory
- DSA-2072 vendor-advisory
- 40547 third-party-advisory
- 42314 third-party-advisory
- ADV-2010-1637 vdb-entry
- http://support.apple.com/kb/HT4554
- SUSE-SR:2010:017 vendor-advisory
- APPLE-SA-2011-03-09-2 vendor-advisory
- SSA:2010-180-01 vendor-advisory
- FEDORA-2010-10833 vendor-advisory
- http://support.apple.com/kb/HT4456
- ADV-2010-2491 vdb-entry
- ADV-2010-1846 vdb-entry
- APPLE-SA-2010-11-22-1 vendor-advisory
- ADV-2010-1612 vdb-entry