diff options
Diffstat (limited to 'import-layers/yocto-poky/meta/recipes-devtools/binutils/binutils/CVE-2017-9040_9042.patch')
-rw-r--r-- | import-layers/yocto-poky/meta/recipes-devtools/binutils/binutils/CVE-2017-9040_9042.patch | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/binutils/binutils/CVE-2017-9040_9042.patch b/import-layers/yocto-poky/meta/recipes-devtools/binutils/binutils/CVE-2017-9040_9042.patch new file mode 100644 index 0000000000..79c6a7d8ab --- /dev/null +++ b/import-layers/yocto-poky/meta/recipes-devtools/binutils/binutils/CVE-2017-9040_9042.patch @@ -0,0 +1,57 @@ +From 7296a62a2a237f6b1ad8db8c38b090e9f592c8cf Mon Sep 17 00:00:00 2001 +From: Nick Clifton <nickc@redhat.com> +Date: Thu, 13 Apr 2017 16:06:30 +0100 +Subject: [PATCH] readelf: fix out of range subtraction, seg fault from a NULL + pointer and memory exhaustion, all from parsing corrupt binaries. + + PR binutils/21379 + * readelf.c (process_dynamic_section): Detect over large section + offsets in the DT_SYMTAB entry. + + PR binutils/21345 + * readelf.c (process_mips_specific): Catch an unfeasible memory + allocation before it happens and print a suitable error message. + +Upstream-Status: Backport +CVE: CVE-2017-9040 +CVE: CVE-2017-9042 +Signed-off-by: Armin Kuster <akuster@mvista.com> + +--- + binutils/ChangeLog | 12 ++++++++++++ + binutils/readelf.c | 26 +++++++++++++++++++++----- + 2 files changed, 33 insertions(+), 5 deletions(-) + +Index: git/binutils/readelf.c +=================================================================== +--- git.orig/binutils/readelf.c ++++ git/binutils/readelf.c +@@ -9306,6 +9306,12 @@ process_dynamic_section (FILE * file) + processing that. This is overkill, I know, but it + should work. */ + section.sh_offset = offset_from_vma (file, entry->d_un.d_val, 0); ++ if ((bfd_size_type) section.sh_offset > current_file_size) ++ { ++ /* See PR 21379 for a reproducer. */ ++ error (_("Invalid DT_SYMTAB entry: %lx"), (long) section.sh_offset); ++ return FALSE; ++ } + + if (archive_file_offset != 0) + section.sh_size = archive_file_size - section.sh_offset; +@@ -15175,6 +15181,15 @@ process_mips_specific (FILE * file) + return 0; + } + ++ /* PR 21345 - print a slightly more helpful error message ++ if we are sure that the cmalloc will fail. */ ++ if (conflictsno * sizeof (* iconf) > current_file_size) ++ { ++ error (_("Overlarge number of conflicts detected: %lx\n"), ++ (long) conflictsno); ++ return FALSE; ++ } ++ + iconf = (Elf32_Conflict *) cmalloc (conflictsno, sizeof (* iconf)); + if (iconf == NULL) + { |