Critical · published January 24, 2022
🔥 An integer overflow in Expat can lead to some serious mayhem! Those using versions before 2.4.4 are at risk of this critical vulnerability lurking in their XML processing. ⚠️ Think of it like a delivery truck overflowing with packages. When the boxes are miscalculated, they can burst open, causing chaos on the road! In the same way, this overflow can lead to unexpected behavior, making systems vulnerable. An attacker could exploit this overflow to manipulate the XML parsing process, potentially allowing them to execute arbitrary code. Imagine giving a stranger the keys to your house; they could do anything—steal your data or compromise system integrity. This vulnerability is absolutely devastating if left unpatched.
Think of it like a delivery truck overflowing with packages. When the boxes are miscalculated, they can burst open, causing chaos on the road! In the same way, this overflow can lead to unexpected behavior, making systems vulnerable. The vulnerability arises in the XML_GetBuffer function due to a signed integer overflow when handling nonzero XML_CONTEXT_BYTES, which can lead to memory corruption.
An attacker could exploit this overflow to manipulate the XML parsing process, potentially allowing them to execute arbitrary code. Imagine giving a stranger the keys to your house; they could do anything—steal your data or compromise system integrity. This vulnerability is absolutely devastating if left unpatched. Upgrade Expat to version 2.4.4 or later immediately to close this vulnerability. Review your XML processing configurations to ensure safety and test your systems after the patch to verify integrity. 🔒 You've got this! By taking these steps, you'll be a security hero, keeping your systems safe from harm! 🦸♂️
| Product | Versions | Fixed in |
|---|---|---|
| libexpat_project/libexpat | < 2.4.4 | 2.4.4 |
| netapp/clustered_data_ontap | all versions | — |
| netapp/oncommand_workflow_automation | all versions | — |
| tenable/nessus | < 8.15.3 | 8.15.3 |
| tenable/nessus | ≥ 10.0.0, < 10.1.1 | 10.1.1 |
| oracle/communications_metasolv_solution | all versions | — |
| debian/debian_linux | all versions | — |
| siemens/sinema_remote_connect_server | < 3.1 | 3.1 |