libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-416: Use After Free vulnerability in RAR decoder - libarchive/archive_read_support_format_rar.c that can result in Crash/DoS - it is unknown if RCE is possible. This attack appear to be exploitable via the victim must open a specially crafted RAR archive.
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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.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 | 3.1.0 (including) | 3.4.0 (excluding) |
| Red Hat Enterprise Linux 7 | RedHat | libarchive-0:3.1.2-12.el7 | * |
| Red Hat Enterprise Linux 8 | RedHat | libarchive-0:3.3.2-7.el8 | * |
| Libarchive | Ubuntu | bionic | * |
| Libarchive | Ubuntu | cosmic | * |
| Libarchive | Ubuntu | devel | * |
| 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 | * |