Skip to content
Fencer Vulns
high 8.1

CVE-2018-14338 json

samples/geotag.cpp in the example code of Exiv2 0.26 misuses the realpath function on POSIX platforms (other than Apple platforms) where gl…

published 2018-07-17 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-0059

cvss
8.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

samples/geotag.cpp in the example code of Exiv2 0.26 misuses the realpath function on POSIX platforms (other than Apple platforms) where glibc is not used, possibly leading to a buffer overflow.

Patch / fix

  • exiv2 RHEL 8 0.27.2-5.el8
  • gegl RHEL 8 0.2.0-39.el8
  • libgexiv2 RHEL 8 0.10.8-4.el8
  • exiv2-libs RHEL 8 0.27.2-5.el8
  • gnome-color-manager RHEL 8 3.28.0-3.el8

red hat advisories RHSA-2020:1577

  • gegl AlmaLinux 8 0.2.0-39.el8
  • libgexiv2 AlmaLinux 8 0.10.8-4.el8
  • gnome-color-manager AlmaLinux 8 3.28.0-3.el8

almalinux advisories ALSA-2020:1577

  • exiv2 Rocky Linux 8 0.27.2-5.el8
  • gegl Rocky Linux 8 0.2.0-39.el8
  • libgexiv2 Rocky Linux 8 0.10.8-4.el8
  • gnome-color-manager Rocky Linux 8 3.28.0-3.el8

rocky linux advisories RLSA-2020:1577

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-2018-14338 updated cvss 3.3

exiv2: buffer overflow in samples/geotag.cpp

  • Red Hat CodeReady Linux Builder (v. 8) exiv2 0.27.2-5.el8, libgexiv2 0.10.8-4.el8, exiv2-libs 0.27.2-5.el8 Red Hat Enterprise Linux AppStream (v. 8) gegl 0.2.0-39.el8, exiv2 0.27.2-5.el8, libgexiv2 0.10.8-4.el8, exiv2-libs 0.27.2-5.el8, gnome-color-manager 3.28.0-3.el8
    fixed: vendor fix RHSA-2020:1577
  • Red Hat Enterprise Linux 6 exiv2, exiv2-libs Red Hat Enterprise Linux 7 exiv2, exiv2-libs
    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

1.43% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/Exiv2/exiv2/issues/382 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

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

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.