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.”
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | glibc | < 2.19-4 | glibc_2.19-4_all.deb |
Debian | 11 | all | glibc | < 2.19-4 | glibc_2.19-4_all.deb |
Debian | 10 | all | glibc | < 2.19-4 | glibc_2.19-4_all.deb |
Debian | 999 | all | glibc | < 2.19-4 | glibc_2.19-4_all.deb |
Debian | 13 | all | glibc | < 2.19-4 | glibc_2.19-4_all.deb |