Description
An issue was discovered in International Components for Unicode (ICU) for C/C++ through 66.1. An integer overflow, leading to a heap-based buffer overflow, exists in the UnicodeString::doAppend() function in common/unistr.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 | 63.2-3 | — |
| Debian 13 | icu | 63.2-3 | — |
| Debian 12 | icu | 63.2-3 | — |
| Debian 10 | icu | 63.1-6+deb10u1 | DSA-4646-1 |
| Debian 9 | icu | 57.1-6+deb9u4 | DSA-4646-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 8 | icu | 52.1-8+deb8u8 | DLA-2151-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | chromium-browser | 80.0.3987.149-0ubuntu0.18.04.1 | — |
| Ubuntu 18.04 LTS | icu | 60.2-3ubuntu3.1 | USN-4305-1 |
| Ubuntu 16.04 LTS | chromium-browser | 80.0.3987.149-0ubuntu0.16.04.1 | — |
| Ubuntu 16.04 LTS | icu | 55.1-7ubuntu0.5 | USN-4305-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | icu | 52.1-3ubuntu0.8+esm1 | USN-4305-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | icu +3 | 60.3-2.el8_1 | RHSA-2020:0902 |
| RHEL 8 | nodejs +2 | 1:10.19.0-2.module+el8.1.0+6118+5aaa808b | RHSA-2020:1317, RHSA-2020:1293 |
| RHEL 8 | nodejs-nodemon | 1.18.3-1.module+el8.1.0+3369+37ae6a45 | RHSA-2020:1317, RHSA-2020:1293 |
| RHEL 8 | nodejs-packaging | 17-3.module+el8.1.0+3369+37ae6a45 | RHSA-2020:1317, RHSA-2020:1293 |
| RHEL 8 | npm | 1:6.13.4-1.10.19.0.2.module+el8.1.0+6118+5aaa808b | RHSA-2020:1317, RHSA-2020:1293 |
| RHEL 7 | icu +3 | 50.2-4.el7_7 | RHSA-2020:0897 |
| RHEL 6 | chromium-browser | 80.0.3987.122-1.el6_10 | RHSA-2020:0738 |
| RHEL 6 | icu +3 | 4.2.1-15.el6_10 | RHSA-2020:0896 |
| RHEL 3 | rh-nodejs10-nodejs +2 | 10.21.0-3.el7 | RHSA-2020:3084 |
| RHEL 3 | rh-nodejs10-npm | 6.14.4-10.21.0.3.el7 | RHSA-2020:3084 |
| RHEL 3 | rh-nodejs12-nodejs +2 | 12.18.2-1.el7 | RHSA-2020:2895 |
| RHEL 3 | rh-nodejs12-npm | 6.14.5-12.18.2.1.el7 | RHSA-2020:2895 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.0 E4S | icu +3 | 60.3-2.el8_0 | RHSA-2020:0901 |
| RHEL 8.0 E4S | nodejs +2 | 1:10.19.0-2.module+el8.0.0+6119+7cbe4838 | RHSA-2020:1343 |
| RHEL 8.0 E4S | nodejs-nodemon | 1.18.3-1.module+el8+2632+6c5111ed | RHSA-2020:1343 |
| RHEL 8.0 E4S | nodejs-packaging | 17-3.module+el8+2873+aa7dfd9a | RHSA-2020:1343 |
| RHEL 8.0 E4S | npm | 1:6.13.4-1.10.19.0.2.module+el8.0.0+6119+7cbe4838 | RHSA-2020:1343 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | icu +3 | 60.3-2.el8_1 | ALSA-2020:0902 |
| AlmaLinux 8 | nodejs-nodemon | 1.18.3-1.module_el8.3.0+2023+d2377ea3 | ALSA-2020:1317, ALSA-2020:1293 |
| AlmaLinux 8 | nodejs-packaging | 17-3.module_el8.3.0+2023+d2377ea3 | ALSA-2020:1317, ALSA-2020:1293 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | icu | 60.3-2.el8_1 | RLSA-2020:0902 |
| Rocky Linux 8 | nodejs-nodemon | 1.18.3-1.module+el8.3.0+101+f84c7154 | RLSA-2020:1317, RLSA-2020:1293 |
| Rocky Linux 8 | nodejs-packaging | 17-3.module+el8.3.0+101+f84c7154 | RLSA-2020:1317, RLSA-2020:1293 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | icu | 60.2-150000.3.15.4 | SUSE-OU-2024:0647-1 |
| 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 | 60.2-150000.3.15.4 | SUSE-OU-2024:0647-1 |
| 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 | 60.2-150000.3.15.4 | SUSE-OU-2024:0647-1 |
| SLES 15 SP3 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-2 |
| SLES 15 SP2 | icu | 60.2-3.9.1 | SUSE-SU-2020:0819-2, SUSE-OU-2024:0647-1 |
| SLES 15 SP2 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-2 |
| SLES 15 SP2 | nodejs10 | 10.21.0-1.21.1 | SUSE-SU-2020:1568-1 |
| SLES 15 SP1 | icu | 60.2-3.9.1 | SUSE-SU-2020:0819-2, SUSE-SU-2020:0819-1 |
| SLES 15 SP1 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-2 |
| SLES 15 SP1 | nodejs10 | 10.21.0-1.21.1 | SUSE-SU-2020:1568-1 |
Show 35 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | icu | 60.2-3.9.1 | SUSE-SU-2020:0819-1 |
| SLES 15 | nodejs10 | 10.21.0-1.21.1 | SUSE-SU-2020:1568-1 |
| SLES 12 SP5 | icu | 52.1-8.10.1 | SUSE-SU-2020:1180-1 |
| SLES 12 SP4 | icu | 52.1-8.10.1 | SUSE-SU-2020:1180-1 |
| SLES 12 SP3 | icu | 52.1-8.10.1 | SUSE-SU-2020:1180-1 |
| SLES 12 SP2 | icu | 52.1-8.10.1 | SUSE-SU-2020:1180-1 |
| SLES 12 SP1 | icu | 52.1-8.10.1 | SUSE-SU-2020:1180-1 |
| SLES 12 | nodejs10 | 10.21.0-1.24.1 | SUSE-SU-2020:1575-1 |
| SLES for SAP 15 SP4 | icu | 60.2-150000.3.15.4 | SUSE-OU-2024:0647-1 |
| SLES for SAP 15 SP3 | icu | 60.2-150000.3.15.4 | SUSE-OU-2024:0647-1 |
| SLES for SAP 15 SP3 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-2 |
| SLES for SAP 15 SP2 | icu | 60.2-150000.3.15.4 | SUSE-OU-2024:0647-1 |
| 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 15 | icu | 60.2-3.9.1 | SUSE-SU-2020:0819-1 |
| SLES for SAP 15 | nodejs10 | 10.21.0-1.21.1 | SUSE-SU-2020:1568-1 |
| SLES for SAP 12 SP5 | icu | 52.1-8.10.1 | SUSE-SU-2020:1180-1 |
| SLES for SAP 12 SP4 | icu | 52.1-8.10.1 | SUSE-SU-2020:1180-1 |
| SLES for SAP 12 SP3 | icu | 52.1-8.10.1 | SUSE-SU-2020:1180-1 |
| SLES for SAP 12 SP2 | icu | 52.1-8.10.1 | SUSE-SU-2020:1180-1 |
| SLES for SAP 12 SP1 | icu | 52.1-8.10.1 | SUSE-SU-2020:1180-1 |
| 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 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-3, SUSE-SU-2023:3563-1 |
| 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 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-3, SUSE-SU-2023:3563-1 |
| SLE HPC 15 SP4 | icu | 60.2-150000.3.15.4 | SUSE-OU-2024:0647-1 |
| SLE HPC 15 SP3 | icu | 60.2-150000.3.15.4 | SUSE-OU-2024:0647-1 |
| SLE HPC 15 SP3 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-2 |
| SLE HPC 15 SP2 | icu | 60.2-150000.3.15.4 | SUSE-OU-2024:0647-1 |
| 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 |
| SLE HPC 15 | icu | 60.2-3.9.1 | SUSE-SU-2020:0819-1 |
| SLE HPC 15 | nodejs10 | 10.21.0-1.21.1 | SUSE-SU-2020:1568-1 |
| SUSE OpenStack Cloud Crowbar 8 | icu | 52.1-8.10.1 | SUSE-SU-2020:1180-1 |
| SUSE OpenStack Cloud 8 | icu | 52.1-8.10.1 | SUSE-SU-2020:1180-1 |
| SUSE OpenStack Cloud 7 | icu | 52.1-8.10.1 | SUSE-SU-2020:1180-1 |
| 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 4.2 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-3, SUSE-SU-2023:3563-1 |
| SUSE HPE Helion OpenStack 8 | icu | 52.1-8.10.1 | SUSE-SU-2020:1180-1 |
| SUSE Enterprise Storage 7.1 | icu | 60.2-150000.3.15.4 | SUSE-OU-2024:0647-1 |
| 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 |
| SUSE Enterprise Storage 5 | icu | 52.1-8.10.1 | SUSE-SU-2020:1180-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | icu | 73.2-2.1 | openSUSE-SU-2024:13127-1 |
| openSUSE Leap 15.5 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-1 |
| openSUSE Leap 15.4 | icu73_2 | 73.2-150000.1.3.1 | SUSE-SU-2023:3563-1 |
| openSUSE Leap 15.1 | icu | 60.2-lp151.3.11.1 | openSUSE-SU-2020:0459-1 |
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 | 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 | 65.1-r1 | — |
| Alpine v3.23 | icu | 65.1-r1 | — |
| Alpine v3.22 | icu | 65.1-r1 | — |
| Alpine v3.21 | icu | 65.1-r1 | — |
| Alpine v3.20 | icu | 65.1-r1 | — |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | icu | 65.1-r1 | — |
| Alpine v3.18 | icu | 65.1-r1 | — |
| Alpine v3.17 | icu | 65.1-r1 | — |
| Alpine v3.16 | icu | 65.1-r1 | — |
| Alpine v3.15 | icu | 65.1-r1 | — |
| Alpine v3.14 | icu | 65.1-r1 | — |
| Alpine v3.13 | icu | 65.1-r1 | — |
| Alpine v3.12 | icu | 65.1-r1 | — |
| Alpine v3.11 | icu | 64.2-r1 | — |
| Alpine v3.10 | icu | 64.2-r1 | — |
| Alpine v3.9 | icu | 62.1-r1 | — |
| Alpine v3.8 | icu | 60.2-r3 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | icu +3 | 50.2-4.amzn2 | ALAS2-2020-1418 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | icu +3 | 60.3-2.el8_1 | ELSA-2020-0902 |
| Oracle Linux 8 | nodejs +2 | 1:10.19.0-2.module+el8.1.0+5572+a2a7be63 | ELSA-2020-1317, ELSA-2020-1293 |
| Oracle Linux 8 | nodejs-nodemon | 1.18.3-1.module+el8.1.0+5392+4d6b561f | ELSA-2020-1317, ELSA-2020-1293 |
| Oracle Linux 8 | nodejs-packaging | 17-3.module+el8.1.0+5392+4d6b561f | ELSA-2020-1317, ELSA-2020-1293 |
| Oracle Linux 8 | npm | 1:6.13.4-1.10.19.0.2.module+el8.1.0+5572+a2a7be63 | ELSA-2020-1317, ELSA-2020-1293 |
| Oracle Linux 7 | icu +3 | 50.2-4.el7_7 | ELSA-2020-0897 |
Advisories 40
- RHSA-2020:1293 Red Hat Security Advisory: nodejs:12 security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- ALSA-2020:1317 Important: nodejs:10 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2020:1293 Important: nodejs:12 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2020:0902 Important: icu security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2026-4026 Red Hat OpenShift: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 18, 2026
- RHSA-2020:3084 Red Hat Security Advisory: rh-nodejs10-nodejs security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2020:2895 Red Hat Security Advisory: rh-nodejs12-nodejs security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2020:1343 Red Hat Security Advisory: nodejs:10 security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2020:1317 Red Hat Security Advisory: nodejs:10 security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2020:0902 Red Hat Security Advisory: icu security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2020:0901 Red Hat Security Advisory: icu security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2020:0896 Red Hat Security Advisory: icu security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2020:0897 Red Hat Security Advisory: icu security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2020:0738 Red Hat Security Advisory: chromium-browser security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- 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-4305-1 icu vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4646-1 icu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2151-1 icu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2020:1293 Important: nodejs:12 security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2020:1317 Important: nodejs:10 security update Rocky Linux Security Advisories · Feb 4, 2026
- RLSA-2020:0902 Important: icu security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-OU-2024:0647-1 Optional update for icu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3563-2 Security update for icu73_2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:0819-2 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
- SUSE-SU-2020:0819-1 Security update for icu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1575-1 Security update for nodejs10 SUSE / openSUSE Security Updates · Feb 4, 2026
- ICSA-23-348-10 Siemens SIMATIC S7-1500 CISA ICS & IT advisories · Aug 12, 2025
- openSUSE-SU-2020:0459-1 Security update for icu SUSE / openSUSE Security Updates · May 7, 2025
- SUSE-SU-2020:1568-1 Security update for nodejs10 SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2020:1180-1 Security update for icu SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2024-3231 Red Hat Enterprise Linux: Schwachstelle ermöglicht Codeausführung BSI CERT-Bund (WID) · Oct 17, 2024
- WID-SEC-2023-1374 Node.js: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 23, 2023
- ALAS2-2020-1418 Important: icu security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · May 6, 2020
- ELSA-2020-1317 Important: nodejs:10 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Apr 15, 2020
- ELSA-2020-1293 Important: nodejs:12 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Apr 2, 2020
- ELSA-2020-0902 Important: icu security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Mar 19, 2020
- ELSA-2020-0897 Important: icu security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Mar 18, 2020
References
- RHSA-2020:0738 vendor-advisory
- GLSA-202003-15 vendor-advisory
- FEDORA-2020-f6271d7afa vendor-advisory
- [debian-lts-announce] 20200320 [SECURITY] [DLA 2151-1] icu security update mailing-list
- DSA-4646 vendor-advisory
- FEDORA-2020-39e0b8bd14 vendor-advisory
- USN-4305-1 vendor-advisory
- openSUSE-SU-2020:0459 vendor-advisory
- FEDORA-2020-43d5a372fc vendor-advisory
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop_24.html
- https://bugs.chromium.org/p/chromium/issues/detail?id=1044570
- https://chromium.googlesource.com/chromium/deps/icu/+/9f4020916eb1f28f3666f018fdcbe6c9a37f0e08
- https://unicode-org.atlassian.net/browse/ICU-20958
- https://github.com/unicode-org/icu/pull/971
- https://github.com/unicode-org/icu/commit/b7d08bc04a4296982fcef8b6b8a354a9e4e7afca
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.oracle.com/security-alerts/cpuapr2022.html