Null pointer dereference was found in upx PackLinuxElf::canUnpack() in p_lx_elf.cpp,in version UPX 4.0.0. That allow attackers to execute arbitrary code and cause a denial of service via a crafted file.
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Upx | Upx_project | 4.0.0 (including) | 4.0.0 (including) |
| Upx-ucl | Ubuntu | bionic | * |
| Upx-ucl | Ubuntu | groovy | * |
| Upx-ucl | Ubuntu | hirsute | * |
| Upx-ucl | Ubuntu | impish | * |
| Upx-ucl | Ubuntu | kinetic | * |
| Upx-ucl | Ubuntu | lunar | * |
| Upx-ucl | Ubuntu | mantic | * |
| Upx-ucl | Ubuntu | trusty | * |
| Upx-ucl | Ubuntu | xenial | * |