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From: "konstantin.s.serebryany at gmail dot com" <sourceware-bugzilla@sourceware.org> To: glibc-bugs@sourceware.org Subject: [Bug libc/18043] buffer-overflow (read past the end) in wordexp/parse_dollars/parse_param Date: Mon, 09 Mar 2015 22:35:00 -0000 [thread overview] Message-ID: <bug-18043-131-GmMjDvil48@http.sourceware.org/bugzilla/> (raw) In-Reply-To: <bug-18043-131@http.sourceware.org/bugzilla/> https://sourceware.org/bugzilla/show_bug.cgi?id=18043 Kostya Serebryany <konstantin.s.serebryany at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Resolution|FIXED |--- --- Comment #19 from Kostya Serebryany <konstantin.s.serebryany at gmail dot com> --- Ah, let's continue here if you don't mind. #include <wordexp.h> #include <string.h> int main() { wordexp_t w1, w2; wordexp("${Ca=}", &w1, 0); wordexp("${Ca=}", &w2, 0); } ==11533== Invalid read of size 1 ==11533== at 0x4F1DC84: parse_param (wordexp.c:1570) ==11533== by 0x4F1DC84: parse_dollars (wordexp.c:2102) ==11533== by 0x4F1FFEB: wordexp (wordexp.c:2348) ==11533== Address 0x51fb4a3 is 0 bytes after a block of size 3 alloc'd ==11533== at 0x4C2ABBD: malloc (vg_replace_malloc.c:296) ==11533== by 0x4E71C59: __add_to_environ (setenv.c:193) ==11533== by 0x4C321FF: setenv (vg_replace_strmem.c:1844) ==11533== by 0x4F1F045: parse_param (wordexp.c:1915) ==11533== by 0x4F1F045: parse_dollars (wordexp.c:2102) ==11533== by 0x4F1FFEB: wordexp (wordexp.c:2348) ==11533== ==11533== Invalid read of size 1 ==11533== at 0x4F1DB39: parse_param (wordexp.c:1894) ==11533== by 0x4F1DB39: parse_dollars (wordexp.c:2102) ==11533== by 0x4F1FFEB: wordexp (wordexp.c:2348) ==11533== Address 0x51fb4a3 is 0 bytes after a block of size 3 alloc'd ==11533== at 0x4C2ABBD: malloc (vg_replace_malloc.c:296) ==11533== by 0x4E71C59: __add_to_environ (setenv.c:193) ==11533== by 0x4C321FF: setenv (vg_replace_strmem.c:1844) ==11533== by 0x4F1F045: parse_param (wordexp.c:1915) ==11533== by 0x4F1F045: parse_dollars (wordexp.c:2102) ==11533== by 0x4F1FFEB: wordexp (wordexp.c:2348) -- You are receiving this mail because: You are on the CC list for the bug.
next prev parent reply other threads:[~2015-03-09 22:35 UTC|newest] Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-02-26 23:10 [Bug libc/18043] New: " konstantin.s.serebryany at gmail dot com 2015-02-28 3:49 ` [Bug libc/18043] " ppluzhnikov at google dot com 2015-03-06 17:14 ` cvs-commit at gcc dot gnu.org 2015-03-06 17:16 ` ppluzhnikov at google dot com 2015-03-09 4:39 ` cvs-commit at gcc dot gnu.org 2015-03-09 6:21 ` konstantin.s.serebryany at gmail dot com 2015-03-09 14:25 ` cvs-commit at gcc dot gnu.org 2015-03-09 14:28 ` ppluzhnikov at google dot com 2015-03-09 16:42 ` konstantin.s.serebryany at gmail dot com 2015-03-09 17:55 ` konstantin.s.serebryany at gmail dot com 2015-03-09 18:20 ` ppluzhnikov at google dot com 2015-03-09 18:39 ` konstantin.s.serebryany at gmail dot com 2015-03-09 18:47 ` konstantin.s.serebryany at gmail dot com 2015-03-09 18:51 ` ppluzhnikov at google dot com 2015-03-09 19:09 ` konstantin.s.serebryany at gmail dot com 2015-03-09 19:10 ` konstantin.s.serebryany at gmail dot com 2015-03-09 19:22 ` ppluzhnikov at google dot com 2015-03-09 19:28 ` konstantin.s.serebryany at gmail dot com 2015-03-09 22:25 ` ppluzhnikov at google dot com 2015-03-09 22:35 ` konstantin.s.serebryany at gmail dot com [this message] 2015-03-09 23:16 ` ppluzhnikov at google dot com 2015-03-11 15:57 ` cvs-commit at gcc dot gnu.org 2015-03-11 16:01 ` ppluzhnikov at google dot com 2015-03-19 14:55 ` fweimer at redhat dot com
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