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| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | generic/tclCmdMZ.c | 2 |
2 files changed, 6 insertions, 1 deletions
@@ -1,3 +1,8 @@ +2012-01-19 Don Porter <dgp@users.sourceforge.net> + + * generic/tclCmdMZ.c: [Bug 3475667] Prevent buffer read overflow. + Thanks to "sebres" for the report and fix. + 2012-01-17 Donal K. Fellows <dkf@users.sf.net> * doc/dict.n (dict with): [Bug 3474512]: Explain better what is going diff --git a/generic/tclCmdMZ.c b/generic/tclCmdMZ.c index 60a9414..ab673d5 100644 --- a/generic/tclCmdMZ.c +++ b/generic/tclCmdMZ.c @@ -264,7 +264,7 @@ Tcl_RegexpObjCmd( * start of the string unless the previous character is a newline. */ - if ((offset == 0) || ((offset > 0) && + if ((offset == 0) || ((offset > 0) && (offset < stringLength) && (Tcl_GetUniChar(objPtr, offset-1) == (Tcl_UniChar)'\n'))) { eflags = 0; } else { |