CVE-2010-4051
Publication date 13 January 2011
Last updated 24 July 2024
Ubuntu priority
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."
Notes
mdeslaur
debatable wheither this is a security issue or not. application should impose limits and filtering. Ignoring.