PackLinuxElf64::unpack in p_lx_elf.cpp in UPX 3.95 allows remote attackers to cause a denial of service (double free), limit the ability of a malware scanner to operate on the entire original data, or possibly have unspecified other impact via a crafted file.
The product calls free() twice on the same memory address.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Upx | Upx | 3.95 (including) | 3.95 (including) |
| Upx-ucl | Ubuntu | artful | * |
| Upx-ucl | Ubuntu | bionic | * |
| Upx-ucl | Ubuntu | cosmic | * |
| Upx-ucl | Ubuntu | disco | * |
| Upx-ucl | Ubuntu | eoan | * |
| Upx-ucl | Ubuntu | focal | * |
| 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 | oracular | * |
| Upx-ucl | Ubuntu | trusty | * |
| Upx-ucl | Ubuntu | xenial | * |