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CVE-2006-0481· NVD / CVE Program· CNA redhat

Heap-based buffer overflow in the alpha strip capability in libpng 1.2.7 allows context-dependent attackers to cause a denial of service (cr

Heap-based buffer overflow in the alpha strip capability in libpng 1.2.7 allows context-dependent attackers to cause a denial of service (crash) when the png_do_strip_filler function is used to strip alpha channels out of the image.

MediumCVSS 5.0 · v2.0—No exploit Fix available
Published
Jan 31, 2006
Updated
Jun 16, 2026
EPSS
3.1% · 87th percentile
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Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
20 / 40 · 5.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.1%

Affected systems

VendorProduct
greg roelofslibpng

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • greg roelofs libpng1.2.7

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Red Hat:enterprise_linux:4::aslibpngbefore 2:1.2.7-1.el4.22:1.2.7-1.el4.2
Red Hat:enterprise_linux:4::aslibpng-debuginfobefore 2:1.2.7-1.el4.22:1.2.7-1.el4.2
Red Hat:enterprise_linux:4::aslibpng-develbefore 2:1.2.7-1.el4.22:1.2.7-1.el4.2

Same product

greg roelofs: all records

Other highest-scoring records for the same primary product.

  • CVE-2004-0597Multiple buffer overflows in libpng 1.2.5 and earlier, as used in multiple products, allow remote attackers to execute arbitrary code via ma
    65This week
  • CVE-2002-1363Portable Network Graphics (PNG) library libpng 1.2.5 and earlier does not correctly calculate offsets, which allows remote attackers to caus
    32Monitor
  • CVE-2006-3334Buffer overflow in the png_decompress_chunk function in pngrutil.c in libpng before 1.2.12 allows context-dependent attackers to cause a den
    31Monitor
  • CVE-2002-0660Buffer overflow in libpng 1.0.12-3.woody.2 and libpng3 1.2.1-1.1.woody.2 on Debian GNU/Linux 3.0, and other operating systems, may allow att
    31Monitor
  • CVE-2004-0598The png_handle_iCCP function in libpng 1.2.5 and earlier allows remote attackers to cause a denial of service (application crash) via a cert
    22Monitor
  • CVE-2004-0599Multiple integer overflows in the (1) png_read_png in pngread.c or (2) png_handle_sPLT functions in pngrutil.c or (3) progressive display im
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
red hat:libpng2:1.2.7-1.el4.2 · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:libpng-debuginfo2:1.2.7-1.el4.2 · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:libpng-devel2:1.2.7-1.el4.2 · Red Hat:enterprise_linux:4::asPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
P · the service can be disrupted
Attack complexity
Low
Confidentiality impact
None
Integrity impact
None
Availability impact
P

Weakness class (CWE)

CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer

CVSS vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records