High [CVE-2025-5222] stack buffer overflow in the srbroot::addtag function
This high-severity Red Hat Linux advisory covers CVE-2025-5222 affecting Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.
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Summary
A stack buffer overflow was found in Internationl components for unicode (ICU ). While running the genrb binary, the 'subtag' struct overflowed at the SRBRoot::addTag function.
This issue may lead to memory corruption and local arbitrary code execution. Red Hat severity: Moderate — CVSS 7 (CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).
Weakness: CWE-120.
Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.4 Extended Update Support; Red Hat OpenShift Container Platform 4.18; Red Hat OpenShift Container Platform 4.19; Red Hat OpenShift Container Platform 4.20; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8.
Will not fix / out of support: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7. Red Hat fixing advisory: RHSA-2025:11888, RHSA-2025:12083, RHSA-2025:12333, RHSA-2025:12331, RHSA-2025:12332, RHSA-2026:54544, RHSA-2026:54553, RHSA-2026:54581.
Affected products named by the advisory: Red Hat package: icu; Red Hat package: mingw-icu.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 5 days ago·verify at source
- icu-0:74.2-5.el10_0
- icu-0:67.1-10.el9_6
- icu-0:67.1-10.el9_0
- icu-0:67.1-10.el9_2
- icu-0:67.1-10.el9_4
- rhcos-418.94.202608111829-0
- rhcos-4.19.9.6.202608120446-0
- rhcos-4.20.9.6.202608121719-0
- RHSA-2025:11888
- RHSA-2025:12083
- RHSA-2025:12333
- RHSA-2025:12331
- RHSA-2025:12332
- RHSA-2026:54544
- RHSA-2026:54553
- RHSA-2026:54581
Official advisory · high-confidence parse· fetched 5 days ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Official advisory · high-confidence parse· fetched 5 days ago·verify at source
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