CVE-2025-5222: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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.
AI Analysis
Technical Summary
CVE-2025-5222 is a stack buffer overflow vulnerability in the ICU library's SRBRoot::addTag function, triggered during execution of the genrb binary. This classic buffer overflow can cause memory corruption and potentially allow local arbitrary code execution. The vulnerability affects ICU versions shipped with Red Hat Enterprise Linux 9 (>=9.0.0 <9.9.0) and 10 (>=10.0.0 <10.3.0). Red Hat has issued security advisories RHSA-2025:11888 and RHSA-2025:12083 providing updated packages that fix this issue. The CVSS 3.1 vector indicates local attack vector, high attack complexity, no privileges required, user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability may lead to memory corruption and local arbitrary code execution on affected systems. The attacker must have local access and require user interaction to trigger the vulnerability. The impact includes potential full compromise of the affected system's confidentiality, integrity, and availability.
Mitigation Recommendations
Red Hat has released official security updates for affected versions of Red Hat Enterprise Linux 9 and 10 that address this vulnerability. Users should apply the updated icu packages as described in Red Hat advisories RHSA-2025:11888 and RHSA-2025:12083. Detailed update instructions are available at https://access.redhat.com/articles/11258. Applying these updates mitigates the vulnerability. No additional mitigation steps are indicated by the vendor.
CVE-2025-5222: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Description
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.
CVSS v3.1
Score 7.0high
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-5222 is a stack buffer overflow vulnerability in the ICU library's SRBRoot::addTag function, triggered during execution of the genrb binary. This classic buffer overflow can cause memory corruption and potentially allow local arbitrary code execution. The vulnerability affects ICU versions shipped with Red Hat Enterprise Linux 9 (>=9.0.0 <9.9.0) and 10 (>=10.0.0 <10.3.0). Red Hat has issued security advisories RHSA-2025:11888 and RHSA-2025:12083 providing updated packages that fix this issue. The CVSS 3.1 vector indicates local attack vector, high attack complexity, no privileges required, user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability may lead to memory corruption and local arbitrary code execution on affected systems. The attacker must have local access and require user interaction to trigger the vulnerability. The impact includes potential full compromise of the affected system's confidentiality, integrity, and availability.
Mitigation Recommendations
Red Hat has released official security updates for affected versions of Red Hat Enterprise Linux 9 and 10 that address this vulnerability. Users should apply the updated icu packages as described in Red Hat advisories RHSA-2025:11888 and RHSA-2025:12083. Detailed update instructions are available at https://access.redhat.com/articles/11258. Applying these updates mitigates the vulnerability. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- redhat
- Date Reserved
- 2025-05-26T14:41:58.427Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/errata/RHSA-2025:11888","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2025:12083","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2025:12331","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2025:12332","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2025:12333","vendor":"Red Hat"},{"url":"https://access.redhat.com/security/cve/CVE-2025-5222","vendor":"Red Hat"}]
Threat ID: 68362775182aa0cae2250911
Added to database: 05/27/2025, 20:58:29 UTC
Last enriched: 07/15/2026, 11:29:15 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 299
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