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Fencer Vulns
medium 4.3

CVE-2009-2042 json

libpng before 1.2.37 does not properly parse 1-bit interlaced images with width values that are not divisible by 8, which causes libpng to…

published 2009-06-12 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-2038

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

libpng before 1.2.37 does not properly parse 1-bit interlaced images with width values that are not divisible by 8, which causes libpng to include uninitialized bits in certain rows of a PNG file and might allow remote attackers to read portions of sensitive memory via "out-of-bounds pixels" in the file.

Patch / fix

  • libpng RHEL 3 2:1.2.2-30
  • libpng RHEL 4 2:1.2.7-3.el4_8.3
  • libpng RHEL 5 2:1.2.10-7.1.el5_5.3
  • libpng10 RHEL 3 1.0.13-21
  • libpng10 RHEL 4 1.0.16-3.el4_8.4

red hat advisories RHSA-2010:0534

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2009-2042 updated cvss 2.6

libpng: Interlaced Images Information Disclosure Vulnerability

  • Red Hat Enterprise Linux 6 libpng
    affected: no fix available
  • Red Hat Desktop version 3 libpng 1.2.2-30, libpng10 1.0.13-21 Red Hat Enterprise Linux (v. 5 server) libpng 1.2.10-7.1.el5_5.3 Red Hat Enterprise Linux AS version 3 libpng 1.2.2-30, libpng10 1.0.13-21 Red Hat Enterprise Linux AS version 4 libpng 1.2.7-3.el4_8.3, libpng10 1.0.16-3.el4_8.4 Red Hat Enterprise Linux Desktop (v. 5 client) libpng 1.2.10-7.1.el5_5.3 Red Hat Enterprise Linux Desktop version 4 libpng 1.2.7-3.el4_8.3, libpng10 1.0.16-3.el4_8.4
    +5 more products
    Red Hat Enterprise Linux Desktop Workstation (v. 5 client) libpng 1.2.10-7.1.el5_5.3 Red Hat Enterprise Linux ES version 3 libpng 1.2.2-30, libpng10 1.0.13-21 Red Hat Enterprise Linux ES version 4 libpng 1.2.7-3.el4_8.3, libpng10 1.0.16-3.el4_8.4 Red Hat Enterprise Linux WS version 3 libpng 1.2.2-30, libpng10 1.0.13-21 Red Hat Enterprise Linux WS version 4 libpng 1.2.7-3.el4_8.3, libpng10 1.0.16-3.el4_8.4
    fixed: vendor fix RHSA-2010:0534

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.28% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.