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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | icu | 57.1-7 | — |
| Debian 13 | icu | 57.1-7 | — |
| Debian 12 | icu | 57.1-7 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | icu | 55.1-7ubuntu0.3 | USN-3458-1 |
| Ubuntu 14.04 LTS | icu | 52.1-3ubuntu0.7 | USN-3458-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | icu | 52.1-8.7.1 | SUSE-SU-2018:1401-1 |
| SLES 12 SP2 | icu | 52.1-8.7.1 | SUSE-SU-2018:1401-2, SUSE-SU-2018:1401-1 |
| SLES 12 SP1 | icu | 52.1-8.7.1 | SUSE-SU-2018:1401-1 |
| SLES 12 | icu | 52.1-8.7.1 | SUSE-SU-2018:1401-1 |
| SLES 11 SP4 | icu | 4.0-47.6.1 | SUSE-SU-2018:1602-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | icu | 52.1-8.7.1 | SUSE-SU-2018:1401-1 |
| SLES for SAP 12 SP2 | icu | 52.1-8.7.1 | SUSE-SU-2018:1401-1 |
| SLES for SAP 12 SP1 | icu | 52.1-8.7.1 | SUSE-SU-2018:1401-1 |
| SLES for SAP 11 SP4 | icu | 4.0-47.6.1 | SUSE-SU-2018:1602-1 |
| SUSE OpenStack Cloud 7 | icu | 52.1-8.7.1 | SUSE-SU-2018:1401-1 |
| SUSE Enterprise Storage 4 | icu | 52.1-8.7.1 | SUSE-SU-2018:1401-1 |
Advisories 6
- USN-3458-1 icu vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- SUSE-SU-2018:1602-1 Security update for icu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:1401-1 Security update for icu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:1401-2 Security update for icu SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-1659 International Components for Unicode (icu): Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Oct 26, 2025
- WID-SEC-2025-1660 Oracle Utilities: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 28, 2025