Double free vulnerability in the gdImageWebPtr function in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to have unspecified impact via large width and height values.
Weakness
The product calls free() twice on the same memory address.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libgd | Libgd | * | 2.2.3 (including) |
| Libgd2 | Ubuntu | esm-infra-legacy/trusty | * |
| Libgd2 | Ubuntu | esm-infra-legacy/xenial | * |
| Libgd2 | Ubuntu | esm-infra/xenial | * |
| Libgd2 | Ubuntu | trusty | * |
| Libgd2 | Ubuntu | trusty/esm | * |
| Libgd2 | Ubuntu | upstream | * |
| Libgd2 | Ubuntu | xenial | * |
| Libgd2 | Ubuntu | yakkety | * |
Potential Mitigations
References
- http://www.debian.org/security/2017/dsa-3777
- http://www.securityfocus.com/bid/95843
- https://github.com/libgd/libgd/blob/gd-2.2.4/CHANGELOG.md
- https://github.com/libgd/libgd/commit/a49feeae76d41959d85ee733925a4cf40bac61b2
- http://www.debian.org/security/2017/dsa-3777
- http://www.securityfocus.com/bid/95843
- https://github.com/libgd/libgd/blob/gd-2.2.4/CHANGELOG.md
- https://github.com/libgd/libgd/commit/a49feeae76d41959d85ee733925a4cf40bac61b2