| Package | Affected versions | Patched versions |
|---|---|---|
| libxml2 | < 2.5.0 | 2.5.0 |
libxml2, possibly before 2.5.0, does not properly detect recursion during entity expansion, which allows context-dependent attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, aka the "billion laughs attack."
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