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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.\"","Type":"Description","Title":"CVE-2010-4051"},{"CveYear":"2010","CveId":"4051","Ordinal":"2","NoteData":"2011-01-13","Type":"Other","Title":"Published"},{"CveYear":"2010","CveId":"4051","Ordinal":"3","NoteData":"2021-06-18","Type":"Other","Title":"Modified"}]}}}