From f7bbc8890de45df6eda0ddef5dd04f835f54eecf Mon Sep 17 00:00:00 2001 From: Nick Clifton Date: Wed, 20 Feb 2019 17:03:47 +0000 Subject: [PATCH] Fix a illegal memory access fault when parsing a corrupt MIPS option section using readelf. PR 24243 * readelf.c (process_mips_specific): Check for an options section that is too small to even contain a single option. Upstream-Status: Backport [https://github.com/bminor/binutils-gdb/commit/7fc0c668f2aceb8582d74db1ad2528e2bba8a921] CVE: CVE-2019-9077 Signed-off-by: Anuj Mittal --- binutils/readelf.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/binutils/readelf.c b/binutils/readelf.c index 9df3742..18ab806 100644 --- a/binutils/readelf.c +++ b/binutils/readelf.c @@ -16179,6 +16179,12 @@ process_mips_specific (Filedata * filedata) error (_("No MIPS_OPTIONS header found\n")); return FALSE; } + /* PR 24243 */ + if (sect->sh_size < sizeof (* eopt)) + { + error (_("The MIPS options section is too small.\n")); + return FALSE; + } eopt = (Elf_External_Options *) get_data (NULL, filedata, options_offset, 1, sect->sh_size, _("options")); -- 2.7.4