archive_read_format_rar_read_data in archive_read_support_format_rar.c in libarchive before 3.4.0 has a use-after-free in a certain ARCHIVE_FAILED situation, related to Ppmd7_DecodeSymbol.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libarchive | Libarchive | * | 3.4.0 (excluding) |
| Red Hat Enterprise Linux 7 | RedHat | libarchive-0:3.1.2-14.el7_7 | * |
| Red Hat Enterprise Linux 8 | RedHat | libarchive-0:3.3.2-8.el8_1 | * |
| Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions | RedHat | libarchive-0:3.3.2-4.el8_0 | * |
| Libarchive | Ubuntu | bionic | * |
| Libarchive | Ubuntu | disco | * |
| Libarchive | Ubuntu | esm-infra-legacy/trusty | * |
| Libarchive | Ubuntu | esm-infra/bionic | * |
| Libarchive | Ubuntu | esm-infra/xenial | * |
| Libarchive | Ubuntu | trusty | * |
| Libarchive | Ubuntu | trusty/esm | * |
| Libarchive | Ubuntu | xenial | * |