The regcomp implementation in the GNU C Library (aka glibc or libc6) through 2.11.3, and 2.12.x through 2.12.2, allows context-dependent attackers to cause a denial of service (application crash) via a regular expression containing adjacent bounded repetitions that bypass the intended RE_DUP_MAX limitation, as demonstrated by a {10,}{10,}{10,}{10,}{10,} sequence in the proftpd.gnu.c exploit for ProFTPD, related to a RE_DUP_MAX overflow.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Glibc | Gnu | 1.00 | 1.00 |
| Glibc | Gnu | 1.01 | 1.01 |
| Glibc | Gnu | 1.02 | 1.02 |
| Glibc | Gnu | 1.03 | 1.03 |
| Glibc | Gnu | 1.04 | 1.04 |
| Glibc | Gnu | 1.05 | 1.05 |
| Glibc | Gnu | 1.06 | 1.06 |
| Glibc | Gnu | 1.07 | 1.07 |
| Glibc | Gnu | 1.08 | 1.08 |
| Glibc | Gnu | 1.09 | 1.09 |
| Glibc | Gnu | 1.09.1 | 1.09.1 |
| Glibc | Gnu | 2.1 | 2.1 |
| Glibc | Gnu | 2.1.1 | 2.1.1 |
| Glibc | Gnu | 2.1.1.6 | 2.1.1.6 |
| Glibc | Gnu | 2.1.2 | 2.1.2 |
| Glibc | Gnu | 2.1.3 | 2.1.3 |
| Glibc | Gnu | 2.1.3.10 | 2.1.3.10 |
| Glibc | Gnu | 2.1.9 | 2.1.9 |
| Glibc | Gnu | 2.10 | 2.10 |
| Glibc | Gnu | 2.10.1 | 2.10.1 |
| Glibc | Gnu | 2.10.2 | 2.10.2 |
| Glibc | Gnu | 2.11 | 2.11 |
| Glibc | Gnu | 2.11.1 | 2.11.1 |
| Glibc | Gnu | 2.11.2 | 2.11.2 |
| Glibc | Gnu | 2.11.3 | 2.11.3 |
| Glibc | Gnu | 2.12.0 | 2.12.0 |
| Glibc | Gnu | 2.12.1 | 2.12.1 |
| Glibc | Gnu | 2.12.2 | 2.12.2 |