diff options
Diffstat (limited to 'meta/recipes-devtools/binutils/binutils/CVE-2017-9039_1.patch')
| -rw-r--r-- | meta/recipes-devtools/binutils/binutils/CVE-2017-9039_1.patch | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/meta/recipes-devtools/binutils/binutils/CVE-2017-9039_1.patch b/meta/recipes-devtools/binutils/binutils/CVE-2017-9039_1.patch new file mode 100644 index 0000000000..ee827ee3e7 --- /dev/null +++ b/meta/recipes-devtools/binutils/binutils/CVE-2017-9039_1.patch @@ -0,0 +1,56 @@ +From 82156ab704b08b124d319c0decdbd48b3ca2dac5 Mon Sep 17 00:00:00 2001 +From: Nick Clifton <nickc@redhat.com> +Date: Mon, 3 Apr 2017 12:14:06 +0100 +Subject: [PATCH] readelf: Fix overlarge memory allocation when reading a + binary with an excessive number of program headers. + + PR binutils/21345 + * readelf.c (get_program_headers): Check for there being too many + program headers before attempting to allocate space for them. + +Upstream-Status: Backport +CVE: CVE-2017-9039 +VER: <= 2.28 +Signed-off-by: Armin Kuster <akuster@mvista.com> + +--- + binutils/ChangeLog | 6 ++++++ + binutils/readelf.c | 17 ++++++++++++++--- + 2 files changed, 20 insertions(+), 3 deletions(-) + +Index: git/binutils/readelf.c +=================================================================== +--- git.orig/binutils/readelf.c ++++ git/binutils/readelf.c +@@ -4705,9 +4705,19 @@ get_program_headers (FILE * file) + if (program_headers != NULL) + return 1; + +- phdrs = (Elf_Internal_Phdr *) cmalloc (elf_header.e_phnum, +- sizeof (Elf_Internal_Phdr)); ++ /* Be kind to memory checkers by looking for ++ e_phnum values which we know must be invalid. */ ++ if (elf_header.e_phnum ++ * (is_32bit_elf ? sizeof (Elf32_External_Phdr) : sizeof (Elf64_External_Phdr)) ++ >= current_file_size) ++ { ++ error (_("Too many program headers - %#x - the file is not that big\n"), ++ elf_header.e_phnum); ++ return FALSE; ++ } + ++ phdrs = (Elf_Internal_Phdr *) cmalloc (elf_header.e_phnum, ++ sizeof (Elf_Internal_Phdr)); + if (phdrs == NULL) + { + error (_("Out of memory reading %u program headers\n"), +@@ -14993,7 +15003,8 @@ process_mips_specific (FILE * file) + /* PR 21344 */ + if (data + ent - pltgot > data_end - addr_size) + { +- error (_("Invalid got entry - %#lx - overflows GOT table\n"), ent); ++ error (_("Invalid got entry - %#lx - overflows GOT table\n"), ++ (long) ent); + goto got_print_fail; + } + |