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Fencer Vulns
medium 6.5

CVE-2018-14048 json

An issue has been found in libpng 1.6.34.

published 2018-07-13 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-5974

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.2%
EPSS 3.2% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

An issue has been found in libpng 1.6.34. It is a SEGV in the function png_free_data in png.c, related to the recommended error handling for png_read_image.

Patch / fix

  • libpng1.6 Debian 14, Debian 13, Debian 12 1.6.37-1

debian advisories DEBIAN-CVE-2018-14048

  • libpng Ubuntu Pro 16.04 LTS 1.2.54-1ubuntu1.1+esm1
  • libpng1.6 Ubuntu Pro 16.04 LTS 1.6.20-2ubuntu0.1~esm1
  • libpng1.6 Ubuntu Pro 18.04 LTS 1.6.34-1ubuntu0.18.04.2+esm3

ubuntu advisories UBUNTU-CVE-2018-14048

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libpng16 openSUSE Tumbleweed 1.6.37-3.3

opensuse advisories openSUSE-SU-2024:10972-1

  • libpng Alpine 3.24, Alpine 3.23, Alpine 3.22 +16 more 1.6.37-r0

alpine advisories ALPINE-CVE-2018-14048

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2018-14048 updated cvss 3.3

libpng: Segmentation fault in png.c:png_free_data function causing denial of service

  • Red Hat Enterprise Linux 5 libpng Red Hat Enterprise Linux 6 libpng Red Hat Enterprise Linux 7 libpng, libpng12 Red Hat Enterprise Linux 8 libpng, libpng12 Red Hat Enterprise Linux 9 libpng Red Hat Virtualization 4 libpng
    not affected: vulnerable code not present

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

3.21% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/fouzhe/security/tree/master/libpng referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/glennrp/libpng/issues/238 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

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.