In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).
CVSS Details
- CVSS 3.1 Base Score: 8.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade expatUpgrade expat-devel | May 4, 2022 | Jan 1, 2022 |
| Alpine Linux | — | Upgrade expat | Aug 22, 2024 | Jan 1, 2022 |
| Amazon Linux Ami 2 | — | Upgrade expatUpgrade expat-develUpgrade expat-debuginfoUpgrade expat-static | Jul 4, 2022 | Jan 1, 2022 |
| Amazon_linux | — | Upgrade expat | Jun 10, 2022 | Jan 1, 2022 |
| Amazon_linux_2023 | — | Upgrade expat-debugsourceUpgrade expat-staticUpgrade expat-debuginfoUpgrade expat-develUpgrade expat | Feb 17, 2025 | Jan 17, 2022 |
| Autodesk Autocad | — | Update Autodesk AutoCAD to the latest version for Windows and macOS. | Jul 22, 2025 | Jul 28, 2022 |
| Centos_linux | — | Upgrade expat-debuginfoUpgrade expat-debugsourceUpgrade expat-develUpgrade expatUpgrade expat-static | Mar 17, 2022 | Jan 1, 2022 |
| Debian | — | Upgrade expat | Feb 1, 2022 | Jan 1, 2022 |
| F5 Big Ip | — | Update F5 BIG-IP to the latest version | Jun 17, 2026 | May 1, 2022 |
| Gentoo Linux | — | Upgrade dev-libs/expat. | Sep 30, 2022 | Jan 1, 2022 |
| Huawei Euleros 2_0_sp10 | — | Upgrade expat | Apr 20, 2022 | Jan 1, 2022 |
| Huawei Euleros 2_0_sp3 | — | Upgrade xulrunner | May 25, 2022 | Jan 1, 2022 |
| Huawei Euleros 2_0_sp5 | — | Upgrade expat-staticUpgrade expat-develUpgrade expat | Apr 26, 2022 | Jan 1, 2022 |
| Huawei Euleros 2_0_sp8 | — | Upgrade expatUpgrade expat-devel | Mar 29, 2022 | Jan 1, 2022 |
| Huawei Euleros 2_0_sp9 | — | Upgrade expat | Apr 19, 2022 | Jan 1, 2022 |
| Ibm Aix | — | Apply the fix or workaround for python_advisory | Oct 12, 2022 | Jan 1, 2022 |
| Ibm Http_server | — | Apply IBM HTTP Server version 7.0.0.46 or laterApply IBM HTTP Server Interim Fix PH43122Apply IBM HTTP Server version 8.5.5.22 or laterApply IBM HTTP Server version 9.0.5.11 or laterApply IBM HTTP Server version 8.0.0.16 or later | Aug 31, 2022 | Mar 2, 2022 |
| Nutanix Ahv | — | Upgrade Nutanix AHV to the latest version | Jun 5, 2026 | Sep 4, 2023 |
| Oracle_linux | — | Upgrade expat-develUpgrade expat-staticUpgrade expat | Mar 17, 2022 | Jan 17, 2022 |
| Redhat_linux | — | Upgrade expat-debuginfoUpgrade expatUpgrade expat-debugsourceUpgrade expat-staticUpgrade expat-develNo solution exists | Mar 17, 2022 | Jan 1, 2022 |
| Rocky_linux | — | Upgrade expat-debugsourceUpgrade expat-develUpgrade expatUpgrade expat-debuginfo | Mar 5, 2024 | Jan 1, 2022 |
| Suse | — | Upgrade libexpat-devel-32bitUpgrade libexpat-develUpgrade libexpat1Upgrade libexpat1-32bitUpgrade expat | Jan 26, 2022 | Jan 1, 2022 |
| Ubuntu | — | Upgrade libexpat1Upgrade libexpat1 (Ubuntu Pro)Upgrade lib64expat1 (Ubuntu Pro) | Feb 22, 2022 | Jan 1, 2022 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Jan 1, 2022 |
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