The archive_wstring_append_from_mbs function in archive_string.c in libarchive 3.2.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted archive file.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libarchive | Libarchive | 3.2.2 (including) | 3.2.2 (including) |
| Libarchive | Ubuntu | esm-infra-legacy/trusty | * |
| Libarchive | Ubuntu | esm-infra/xenial | * |
| Libarchive | Ubuntu | precise | * |
| Libarchive | Ubuntu | trusty | * |
| Libarchive | Ubuntu | trusty/esm | * |
| Libarchive | Ubuntu | upstream | * |
| Libarchive | Ubuntu | xenial | * |
| Libarchive | Ubuntu | yakkety | * |
| Libarchive | Ubuntu | zesty | * |
Potential Mitigations
References
- http://www.securityfocus.com/bid/97327
- https://github.com/libarchive/libarchive/issues/842
- https://lists.debian.org/debian-lts-announce/2018/11/msg00037.html
- https://usn.ubuntu.com/3736-1/
- https://www.debian.org/security/2018/dsa-4360
- http://www.securityfocus.com/bid/97327
- https://github.com/libarchive/libarchive/issues/842
- https://lists.debian.org/debian-lts-announce/2018/11/msg00037.html
- https://usn.ubuntu.com/3736-1/
- https://www.debian.org/security/2018/dsa-4360