Libgd version 2.2.5 contains a Double Free Vulnerability vulnerability in gdImageBmpPtr Function that can result in Remote Code Execution . This attack appear to be exploitable via Specially Crafted Jpeg Image can trigger double free. This vulnerability appears to have been fixed in after commit ac16bdf2d41724b5a65255d4c28fb0ec46bc42f5.
Weakness
The product calls free() twice on the same memory address.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libgd | Libgd | 2.2.5 (including) | 2.2.5 (including) |
| Libgd2 | Ubuntu | bionic | * |
| Libgd2 | Ubuntu | devel | * |
| Libgd2 | Ubuntu | esm-infra-legacy/trusty | * |
| Libgd2 | Ubuntu | esm-infra/bionic | * |
| Libgd2 | Ubuntu | esm-infra/xenial | * |
| Libgd2 | Ubuntu | trusty | * |
| Libgd2 | Ubuntu | trusty/esm | * |
| Libgd2 | Ubuntu | upstream | * |
| Libgd2 | Ubuntu | xenial | * |
Potential Mitigations
References
- https://github.com/libgd/libgd/issues/447
- https://lists.debian.org/debian-lts-announce/2019/01/msg00028.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3CZ2QADQTKRHTGB2AHD7J4QQNDLBEMM6/
- https://security.gentoo.org/glsa/201903-18
- https://usn.ubuntu.com/3755-1/
- https://github.com/libgd/libgd/issues/447
- https://lists.debian.org/debian-lts-announce/2019/01/msg00028.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3CZ2QADQTKRHTGB2AHD7J4QQNDLBEMM6/
- https://security.gentoo.org/glsa/201903-18
- https://usn.ubuntu.com/3755-1/