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Fencer Vulns
critical 9.8

CVE-2017-14952 json

Double free in i18n/zonemeta.cpp in International Components for Unicode (ICU) for C/C++ through 59.1 allows remote attackers to execute ar…

published 2017-10-16 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-6428

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.1%
EPSS 5.1% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

Double free in i18n/zonemeta.cpp in International Components for Unicode (ICU) for C/C++ through 59.1 allows remote attackers to execute arbitrary code via a crafted string, aka a "redundant UVector entry clean up function call" issue.

Patch / fix

  • icu Debian 14, Debian 13, Debian 12 57.1-7

debian advisories DEBIAN-CVE-2017-14952

  • icu Ubuntu 14.04 LTS 52.1-3ubuntu0.7
  • icu Ubuntu 16.04 LTS 55.1-7ubuntu0.3

ubuntu advisories UBUNTU-CVE-2017-14952

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

  • icu SLES 12 SP3, SLES 12 SP2-BCL, SLED 12 SP3 +10 more 52.1-8.7.1
  • icu SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 4.0-47.6.1

suse advisories SUSE-SU-2018:1401-2SUSE-SU-2018:1602-1SUSE-SU-2018:1401-1

  • icu Arch Linux 60.1-1
  • lib32-icu Arch Linux 60.1-1

arch linux advisories AVG-504AVG-507

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-2017-14952 updated cvss 4.5

icu: Double free in i18n/zonemeta.cpp

  • Red Hat Enterprise Linux 6 icu, libicu Red Hat Enterprise Linux 7 icu, libicu
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 5 icu
    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

5.10% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

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.