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525986d6c6
Source: binutils-gdb.git
MR: 74062
Type: Security Fix
Disposition: Backport from binutils-2_29
ChangeID: 2ec9457275509bfd8dc9185fbdcd485192a82cca
Description:
Handle EITR records in VMS Alpha binaries with overlarge command length parameters.
PR binutils/21579
* vms-alpha.c (_bfd_vms_slurp_etir): Extend check of cmd_length.
Affects: <= 2.28
Author: Nick Clifton <nickc@redhat.com>
(From OE-Core rev: f8542a9cf50c8001f675f68e42234c306d8ce1e7)
Signed-off-by: Thiruvadi Rajaraman <trajaraman@mvista.com>
Reviewed-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
63 lines
1.9 KiB
Diff
63 lines
1.9 KiB
Diff
commit 76800cba595efc3fe95a446c2d664e42ae4ee869
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Author: Nick Clifton <nickc@redhat.com>
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Date: Thu Jun 15 12:08:57 2017 +0100
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Handle EITR records in VMS Alpha binaries with overlarge command length parameters.
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PR binutils/21579
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* vms-alpha.c (_bfd_vms_slurp_etir): Extend check of cmd_length.
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Upstream-Status: CVE-2017-9745
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Signed-off-by: Thiruvadi Rajaraman <trajaraman@mvista.com>
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Index: git/bfd/vms-alpha.c
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===================================================================
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--- git.orig/bfd/vms-alpha.c 2017-09-21 16:08:57.863375204 +0530
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+++ git/bfd/vms-alpha.c 2017-09-21 16:08:58.211377888 +0530
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@@ -1801,14 +1801,8 @@
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ptr += 4;
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-#if VMS_DEBUG
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- _bfd_vms_debug (4, "etir: %s(%d)\n",
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- _bfd_vms_etir_name (cmd), cmd);
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- _bfd_hexdump (8, ptr, cmd_length - 4, 0);
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-#endif
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-
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- /* PR 21589: Check for a corrupt ETIR record. */
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- if (cmd_length < 4)
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+ /* PR 21589 and 21579: Check for a corrupt ETIR record. */
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+ if (cmd_length < 4 || (ptr + cmd_length > maxptr + 4))
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{
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corrupt_etir:
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_bfd_error_handler (_("Corrupt ETIR record encountered"));
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@@ -1816,6 +1810,12 @@
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return FALSE;
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}
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+#if VMS_DEBUG
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+ _bfd_vms_debug (4, "etir: %s(%d)\n",
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+ _bfd_vms_etir_name (cmd), cmd);
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+ _bfd_hexdump (8, ptr, cmd_length - 4, 0);
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+#endif
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+
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switch (cmd)
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{
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/* Stack global
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Index: git/bfd/ChangeLog
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===================================================================
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--- git.orig/bfd/ChangeLog 2017-09-21 16:08:57.927375697 +0530
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+++ git/bfd/ChangeLog 2017-09-21 16:11:35.192613756 +0530
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@@ -81,6 +81,11 @@
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PR binutils/21581
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(ieee_archive_p): Likewise.
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+2017-06-15 Nick Clifton <nickc@redhat.com>
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+
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+ PR binutils/21579
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+ * vms-alpha.c (_bfd_vms_slurp_etir): Extend check of cmd_length.
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+
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2017-06-14 Nick Clifton <nickc@redhat.com>
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PR binutils/21589
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