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[Bug general/22976] global-buffer-overflow in ebl_dynamic_tag_name (libebl/ebldynamictagname.c)
- From: "mark at klomp dot org" <sourceware-bugzilla at sourceware dot org>
- To: elfutils-devel at sourceware dot org
- Date: Fri, 16 Mar 2018 18:45:50 +0000
- Subject: [Bug general/22976] global-buffer-overflow in ebl_dynamic_tag_name (libebl/ebldynamictagname.c)
- Auto-submitted: auto-generated
- References: <bug-22976-10460@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=22976
Mark Wielaard <mark at klomp dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2018-03-16
CC| |mark at klomp dot org
Ever confirmed|0 |1
--- Comment #1 from Mark Wielaard <mark at klomp dot org> ---
Thanks. The issue is that there is a new standard SYMTAB_SHNDX which we got
through the new elf.h, but didn't handle in ebldynamictagname.c.
To fix this, and to prevent this from happening in the future I proposed the
following patch:
commit 92581d7eb483cb039e60112b0a03a04c2ffa4df4
Author: Mark Wielaard <mark@klomp.org>
Date: Fri Mar 16 19:42:17 2018 +0100
libebl: Handle SYMTAB_SHNDX in ebl_dynamic_tag_name.
SYMTAB_SHNDX was introduced when elf.h was imported, but not yet handled
in ebl_dynamic_tag_name. Handle it and add an eu_static_assert to make
sure stdtags always contains DT_NUM entries.
https://sourceware.org/bugzilla/show_bug.cgi?id=22976
Signed-off-by: Mark Wielaard <mark@klomp.org>
https://sourceware.org/ml/elfutils-devel/2018-q1/msg00078.html
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