icu: Double free in i18n/zonemeta.cpp
Published Oct 16, 2017
9.8
CRITICALCVSS 3.0
EPSS 5.10%
Description
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.
Affected products
No data.
- ≤ 59.1
No data.
Red Hat Enterprise Linux 5
icu
Not affected
Red Hat Enterprise Linux 6
icu
Will not fix
Red Hat Enterprise Linux 7
icu
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | icu | Not affected | n/a |
| Red Hat Enterprise Linux 6 | icu | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | icu | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.10% (0.05096) | 92.09th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.10% (0.05096) | 91.24th | v5 (v2026.06.15) |
| Aug 20, 2025 | 2.40% (0.02401) | 84.43th | v4 (v2025.03.14) |
| Jun 4, 2025 | 3.56% (0.03562) | 87.15th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.87% (0.04873) | 88.56th | v4 (v2025.03.14) |
| Mar 29, 2025 | 19.87% (0.19873) | 92.59th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.87% (0.04873) | 88.83th | v4 (v2025.03.14) |
| Dec 17, 2024 | 3.17% (0.03166) | 90.92th | v3 (v2023.03.01) |
| Sep 26, 2023 | 2.57% (0.02566) | 88.94th | v3 (v2023.03.01) |
| Aug 26, 2023 | 2.61% (0.02607) | 88.95th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.54% (0.02539) | 88.50th | v3 (v2023.03.01) |
| Mar 6, 2023 | 5.79% (0.05785) | 90.41th | v2 (v2022.01.01) |
| Jul 13, 2022 | 5.79% (0.05785) | 89.71th | v2 (v2022.01.01) |
| Apr 1, 2022 | 5.63% (0.05634) | 89.29th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.63% (0.05634) | 76.84th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.83% (0.01828) | 35.38th | v1 |
| Jan 6, 2022 | 1.83% (0.01828) | 34.69th | v1 |
| Sep 1, 2021 | 1.83% (0.01828) | 74.99th | v1 |
| Apr 14, 2021 | 1.83% (0.01828) | 0.00th | v1 |
References (7)
- http://bugs.icu-project.org/trac/changeset/40324/trunk/icu4c/source/i18n/zonemeta.cpp x_refsource_CONFIRMIssue TrackingPatch
- http://www.sourcebrella.com/blog/double-free-vulnerability-international-components-unicode-icu/ x_refsource_MISCThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-14952 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1510930 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2017-14952
- https://www.cve.org/CVERecord?id=CVE-2017-14952
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html x_refsource_MISC
| Link | Providers | Tags |
|---|---|---|
| http://bugs.icu-project.org/trac/changeset/40324/trunk/icu4c/source/i18n/zonemeta.cpp | x_refsource_CONFIRMIssue TrackingPatch | |
| http://www.sourcebrella.com/blog/double-free-vulnerability-international-components-unicode-icu/ | x_refsource_MISCThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2017-14952 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1510930 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-14952 | ||
| https://www.cve.org/CVERecord?id=CVE-2017-14952 | ||
| https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html | x_refsource_MISC |
Change history (0)
No recorded changes yet.