CVE-2011-3328: The png_handle_cHRM function in pngrutil.c in libpng 1.5.4, when color-correction support is enabled, allows r

Routine

LOW 2.6DOWNGRADE

CVE-2011-3328 is a low-severity flaw (CVSS 2.6) affecting libpng. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The png_handle_cHRM function in pngrutil.c in libpng 1.5.4, when color-correction support is enabled, allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a malformed PNG image containing a cHRM chunk associated with a certain zero value.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	2.6 (Low)
EPSS exploit chance	3.6% (top 10%)
CISA exploited list	No
Published	2012-01-17
Last modified	2026-06-16

Publisher (CNA): CERT/CC · Vendor: greg roelofs

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2012-01-17 19:55 UTCPublished CVE record published
2026-06-16 23:33 UTCUpdated Record last modified

greg roelofs libpng DOWNGRADE

Affected: 1.5.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5.4

1. Check installed version

apt-cache policy libpng || rpm -q libpng || libpng --version

2. No fixed release: DOWNGRADE to a release before 1.5.4 (Debian / Ubuntu)

apt-cache madison libpng sudo apt install libpng=<VERSION_BEFORE_1.5.4> sudo apt-mark hold libpng

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list libpng sudo dnf downgrade libpng-<VERSION_BEFORE_1.5.4> sudo dnf versionlock add libpng

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2011-3328?

libpng: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2011-3328 being exploited?

CVE-2011-3328 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2011-3328 affect?

CVE-2011-3328 affects libpng. Severity is low (CVSS 2.6). The png_handle_cHRM function in pngrutil.c in libpng 1.5.4, when color-correction support is enabled, allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a malformed PNG image containing a c

How urgent is CVE-2011-3328?

Priority 36/100. Public exploit reference

Software pages

libpng vulnerabilities

Related CVEs

CVE-2026-34757 MEDIUM 5.1 UPGRADE MITIGATE LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network
CVE-2025-64720 HIGH 7.1 UPGRADE LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network
CVE-2025-65018 HIGH 7.1 UPGRADE LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network
CVE-2025-64505 MEDIUM 6.1 UPGRADE LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network
CVE-2025-64506 MEDIUM 6.1 UPGRADE LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network

References

← Back to latest CVEs