Description
International Components for Unicode (ICU-20850) v66.1 was discovered to contain a use after free bug in the pkg_createWithAssemblyCode function in the file tools/pkgdata/pkgdata.cpp.
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 | 67.1-2 | — |
| Debian 13 | icu | 67.1-2 | — |
| Debian 12 | icu | 67.1-2 | — |
| Debian 10 | icu | 63.1-6+deb10u2 | DSA-5014-1 |
| Debian 9 | icu | 57.1-6+deb9u5 | DLA-2784-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | icu | 60.2-3ubuntu3.2 | USN-5133-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | icu | 55.1-7ubuntu0.5+esm1 | USN-5133-1 |
| Ubuntu Pro 14.04 LTS | icu | 52.1-3ubuntu0.8+esm2 | USN-5133-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | icu | 65.1-150200.4.15.1 | SUSE-SU-2025:02079-1 |
| SLES 15 SP6 | icu | 65.1-150200.4.15.1 | SUSE-SU-2025:02079-1 |
| SLES 15 SP5 | icu | 65.1-150200.4.15.1 | SUSE-SU-2025:02079-1 |
| SLES 15 SP5 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-3, SUSE-SU-2023:3563-1 |
| SLES 15 SP4 | icu | 60.2-150000.3.12.1 | SUSE-SU-2025:02079-1, SUSE-SU-2022:3142-1, SUSE-SU-2022:3141-1 |
| SLES 15 SP4 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-3, SUSE-SU-2023:3563-1 |
| SLES 15 SP3 | icu | 60.2-150000.3.12.1 | SUSE-SU-2025:02079-1, SUSE-SU-2022:3142-1, SUSE-SU-2022:3141-1 |
| SLES 15 SP3 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-2 |
Show 24 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-2 |
| SLES 15 SP1 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-2 |
| SLES 12 SP5 | icu | 52.1-8.13.1 | SUSE-SU-2022:3140-1 |
| SLES for SAP 15 SP5 | icu | 65.1-150200.4.15.1 | SUSE-SU-2025:02079-1 |
| SLES for SAP 15 SP4 | icu | 65.1-150200.4.15.1 | SUSE-SU-2025:02079-1 |
| SLES for SAP 15 SP3 | icu | 65.1-150200.4.15.1 | SUSE-SU-2025:02079-1 |
| SLES for SAP 15 SP3 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-2 |
| SLES for SAP 15 SP2 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-2 |
| SLES for SAP 15 SP1 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-2 |
| SLES for SAP 12 SP5 | icu | 52.1-8.13.1 | SUSE-SU-2022:3140-1 |
| SLE Micro 5.4 | icu | 65.1-150200.4.15.1 | SUSE-SU-2025:02079-1 |
| SLE Micro 5.4 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-3, SUSE-SU-2023:3563-1 |
| SLE Micro 5.3 | icu | 65.1-150200.4.15.1 | SUSE-SU-2025:02079-1 |
| SLE Micro 5.3 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-3, SUSE-SU-2023:3563-1 |
| SLE Micro 5.2 | icu | 65.1-150200.4.5.1 | SUSE-SU-2025:02079-1, SUSE-SU-2022:3142-1 |
| SLE Micro 5.2 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-3, SUSE-SU-2023:3563-1 |
| SLE Micro 5.1 | icu | 65.1-150200.4.5.1 | SUSE-SU-2025:02079-1, SUSE-SU-2022:3142-1 |
| SLE Micro 5.1 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-3, SUSE-SU-2023:3563-1 |
| SLE HPC 15 SP5 | icu | 65.1-150200.4.15.1 | SUSE-SU-2025:02079-1 |
| SLE HPC 15 SP4 | icu | 65.1-150200.4.15.1 | SUSE-SU-2025:02079-1 |
| SLE HPC 15 SP3 | icu | 65.1-150200.4.15.1 | SUSE-SU-2025:02079-1 |
| SLE HPC 15 SP3 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-2 |
| SLE HPC 15 SP2 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-2 |
| SLE HPC 15 SP1 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-2 |
| SUSE Manager Server 4.3 | icu | 65.1-150200.4.15.1 | SUSE-SU-2025:02079-1 |
| SUSE Manager Server 4.2 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-3, SUSE-SU-2023:3563-1 |
| SUSE Manager Proxy 4.3 | icu | 65.1-150200.4.15.1 | SUSE-SU-2025:02079-1 |
| SUSE Manager Proxy 4.2 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-3, SUSE-SU-2023:3563-1 |
| SUSE Enterprise Storage 7.1 | icu | 65.1-150200.4.15.1 | SUSE-SU-2025:02079-1 |
| SUSE Enterprise Storage 7.1 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-2 |
| SUSE Enterprise Storage 7 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-2 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | icu | 73.2-2.1 | openSUSE-SU-2024:13127-1 |
| openSUSE Leap 15.6 | icu | 65.1-150200.4.15.1 | SUSE-SU-2025:02079-1 |
| openSUSE Leap 15.5 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-1 |
| openSUSE Leap 15.4 | icu | 60.2-150000.3.12.1 | SUSE-SU-2022:3142-1, SUSE-SU-2022:3141-1 |
| openSUSE Leap 15.4 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-1 |
| openSUSE Leap 15.3 | icu | 60.2-150000.3.12.1 | SUSE-SU-2022:3142-1, SUSE-SU-2022:3141-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.4 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-3 |
| openSUSE Leap Micro 5.3 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-3 |
| openSUSE Leap Micro 5.2 | icu | 65.1-150200.4.5.1 | SUSE-SU-2022:3142-1 |
| openSUSE Leap Micro 5.2 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-3, SUSE-SU-2023:3563-2, SUSE-SU-2023:3563-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | icu | 66.1-r0 | — |
| Alpine v3.23 | icu | 66.1-r0 | — |
| Alpine v3.22 | icu | 66.1-r0 | — |
| Alpine v3.21 | icu | 66.1-r0 | — |
| Alpine v3.20 | icu | 66.1-r0 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | icu | 66.1-r0 | — |
| Alpine v3.18 | icu | 66.1-r0 | — |
| Alpine v3.17 | icu | 66.1-r0 | — |
| Alpine v3.16 | icu | 66.1-r0 | — |
| Alpine v3.15 | icu | 66.1-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | icu +3 | 50.2-4.amzn2.0.1 | ALAS2-2023-2171 |
| Amazon Linux 2 | libicu60 +2 | 60.3-2.amzn2.0.2 | ALAS2-2023-2172 |
Advisories 16
- SSA-398330 SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5 Siemens ProductCERT · Oct 13, 2026
- USN-5133-1 A security issue was fixed in ICU Ubuntu Security Notices (USN) · Jun 29, 2026
- SUSE-SU-2025:02079-1 Security update for icu SUSE / openSUSE Security Updates · Mar 23, 2026
- DSA-5014-1 icu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2784-1 icu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2023:3563-2 Security update for icu73_2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3141-1 Security update for icu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3140-1 Security update for icu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3142-1 Security update for icu SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13127-1 icu-73.2-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3563-3 Security update for icu73_2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3563-1 Security update for icu73_2 SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-1330 International Components for Unicode (icu): Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Oct 26, 2025
- ICSA-23-348-10 Siemens SIMATIC S7-1500 CISA ICS & IT advisories · Aug 12, 2025
- ALAS2-2023-2172 Moderate: libicu60 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jul 25, 2023
- ALAS2-2023-2171 Moderate: icu security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jul 25, 2023