diff options
Diffstat (limited to 'meta/recipes-devtools/elfutils/files/CVE-2019-7150.patch')
| -rw-r--r-- | meta/recipes-devtools/elfutils/files/CVE-2019-7150.patch | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/meta/recipes-devtools/elfutils/files/CVE-2019-7150.patch b/meta/recipes-devtools/elfutils/files/CVE-2019-7150.patch new file mode 100644 index 0000000000..01a4fb1562 --- /dev/null +++ b/meta/recipes-devtools/elfutils/files/CVE-2019-7150.patch @@ -0,0 +1,51 @@ +From da5c5336a1eaf519de246f7d9f0f5585e1d4ac59 Mon Sep 17 00:00:00 2001 +From: Mark Wielaard <mark@klomp.org> +Date: Sun, 20 Jan 2019 23:05:56 +0100 +Subject: [PATCH] libdwfl: Sanity check partial core file dyn data read. + +When reading the dyn data from the core file check if we got everything, +or just part of the data. + +https://sourceware.org/bugzilla/show_bug.cgi?id=24103 + +Signed-off-by: Mark Wielaard <mark@klomp.org> + +Upstream-Status: Backport +CVE: CVE-2019-7150 +Signed-off-by: Armin Kuster <akuster@mvista.com> + +--- + libdwfl/ChangeLog | 5 +++++ + libdwfl/dwfl_segment_report_module.c | 6 ++++++ + 2 files changed, 11 insertions(+) + +Index: elfutils-0.175/libdwfl/dwfl_segment_report_module.c +=================================================================== +--- elfutils-0.175.orig/libdwfl/dwfl_segment_report_module.c ++++ elfutils-0.175/libdwfl/dwfl_segment_report_module.c +@@ -783,6 +783,12 @@ dwfl_segment_report_module (Dwfl *dwfl, + if (dyn_filesz != 0 && dyn_filesz % dyn_entsize == 0 + && ! read_portion (&dyn_data, &dyn_data_size, dyn_vaddr, dyn_filesz)) + { ++ /* dyn_data_size will be zero if we got everything from the initial ++ buffer, otherwise it will be the size of the new buffer that ++ could be read. */ ++ if (dyn_data_size != 0) ++ dyn_filesz = dyn_data_size; ++ + void *dyns = malloc (dyn_filesz); + Elf32_Dyn (*d32)[dyn_filesz / sizeof (Elf32_Dyn)] = dyns; + Elf64_Dyn (*d64)[dyn_filesz / sizeof (Elf64_Dyn)] = dyns; +Index: elfutils-0.175/libdwfl/ChangeLog +=================================================================== +--- elfutils-0.175.orig/libdwfl/ChangeLog ++++ elfutils-0.175/libdwfl/ChangeLog +@@ -1,3 +1,8 @@ ++2019-01-20 Mark Wielaard <mark@klomp.org> ++ ++ * dwfl_segment_report_module.c (dwfl_segment_report_module): Check ++ dyn_filesz vs dyn_data_size after read_portion call. ++ + 2018-10-20 Mark Wielaard <mark@klomp.org> + + * libdwflP.h (__libdw_open_elf): New internal function declaration. |