ldd in the GNU C Library (aka glibc or libc6) 2.13 and earlier allows local users to gain privileges via a Trojan horse executable file linked with a modified loader that omits certain LD_TRACE_LOADED_OBJECTS checks. NOTE: the GNU C Library vendor states This is just nonsense. There are a gazillion other ways to introduce code if people are downloading arbitrary binaries and install them in appropriate directories or set LD_LIBRARY_PATH etc.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Glibc | Gnu | * | 2.1.3 (including) |
| Glibc | Gnu | 1.00 (including) | 1.00 (including) |
| Glibc | Gnu | 1.01 (including) | 1.01 (including) |
| Glibc | Gnu | 1.02 (including) | 1.02 (including) |
| Glibc | Gnu | 1.03 (including) | 1.03 (including) |
| Glibc | Gnu | 1.04 (including) | 1.04 (including) |
| Glibc | Gnu | 1.05 (including) | 1.05 (including) |
| Glibc | Gnu | 1.06 (including) | 1.06 (including) |
| Glibc | Gnu | 1.07 (including) | 1.07 (including) |
| Glibc | Gnu | 1.08 (including) | 1.08 (including) |
| Glibc | Gnu | 1.09 (including) | 1.09 (including) |
| Glibc | Gnu | 1.09.1 (including) | 1.09.1 (including) |
| Glibc | Gnu | 2.0 (including) | 2.0 (including) |
| Glibc | Gnu | 2.0.1 (including) | 2.0.1 (including) |
| Glibc | Gnu | 2.0.2 (including) | 2.0.2 (including) |
| Glibc | Gnu | 2.0.3 (including) | 2.0.3 (including) |
| Glibc | Gnu | 2.0.4 (including) | 2.0.4 (including) |
| Glibc | Gnu | 2.0.5 (including) | 2.0.5 (including) |
| Glibc | Gnu | 2.0.6 (including) | 2.0.6 (including) |
| Glibc | Gnu | 2.1 (including) | 2.1 (including) |
| Glibc | Gnu | 2.1.1 (including) | 2.1.1 (including) |
| Glibc | Gnu | 2.1.1.6 (including) | 2.1.1.6 (including) |
| Glibc | Gnu | 2.1.2 (including) | 2.1.2 (including) |
| Red Hat Enterprise Linux 4 | RedHat | glibc-0:2.3.4-2.57 | * |
| Red Hat Enterprise Linux 5 | RedHat | glibc-0:2.5-65.el5_7.3 | * |
| Red Hat Enterprise Linux 6 | RedHat | glibc-0:2.12-1.47.el6 | * |