Critical · published February 18, 2022
🔥 An integer overflow in Expat allows for potentially catastrophic consequences before you even get to version 2.4.5! Think of this like pouring a fizzy drink into a bottle — if you pour too much too fast, it overflows and creates a sticky mess everywhere. In this case, the integer overflow can lead to unpredictable behavior in your applications when processing XML data, just like the drink spilling all over your kitchen! An attacker exploiting this vulnerability could cause the application to crash or behave erratically, potentially leading to data corruption or denial of service. It's absolutely devastating when a library meant to simplify XML parsing turns into a ticking time bomb during your software's runtime!
Think of this like pouring a fizzy drink into a bottle — if you pour too much too fast, it overflows and creates a sticky mess everywhere. In this case, the integer overflow can lead to unpredictable behavior in your applications when processing XML data, just like the drink spilling all over your kitchen! This critical vulnerability arises in Expat's storeRawNames function, where improper handling of integer values can lead to an overflow, allowing attackers to exploit this flaw for various malicious outcomes.
An attacker exploiting this vulnerability could cause the application to crash or behave erratically, potentially leading to data corruption or denial of service. It's absolutely devastating when a library meant to simplify XML parsing turns into a ticking time bomb during your software's runtime! Upgrade Expat to version 2.4.5 or later as soon as possible. Ensure that any applications relying on the library are thoroughly tested post-update to confirm they handle XML data as expected. Regularly review your dependency management to avoid similar issues in the future! You've got this! By patching and staying vigilant, you can keep your applications safe and sound. 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| libexpat_project/libexpat | < 2.4.5 | 2.4.5 |
| debian/debian_linux | all versions | — |
| debian/debian_linux | all versions | — |
| fedoraproject/fedora | all versions | — |
| fedoraproject/fedora | all versions | — |
| oracle/http_server | all versions | — |
| oracle/http_server | all versions | — |
| oracle/zfs_storage_appliance_kit | all versions | — |
| siemens/sinema_remote_connect_server | < 3.1 | 3.1 |