diff options
Diffstat (limited to 'poky/meta/recipes-multimedia/libsndfile/libsndfile1/CVE-2019-3832.patch')
| -rw-r--r-- | poky/meta/recipes-multimedia/libsndfile/libsndfile1/CVE-2019-3832.patch | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/poky/meta/recipes-multimedia/libsndfile/libsndfile1/CVE-2019-3832.patch b/poky/meta/recipes-multimedia/libsndfile/libsndfile1/CVE-2019-3832.patch new file mode 100644 index 000000000..ab3721139 --- /dev/null +++ b/poky/meta/recipes-multimedia/libsndfile/libsndfile1/CVE-2019-3832.patch @@ -0,0 +1,37 @@ +From 43886efc408c21e1e329086ef70c88860310f25b Mon Sep 17 00:00:00 2001 +From: Emilio Pozuelo Monfort <pochu27@gmail.com> +Date: Tue, 5 Mar 2019 11:27:17 +0100 +Subject: [PATCH] wav_write_header: don't read past the array end + +CVE-2018-19758 wasn't entirely fixed in the fix, so fix it harder. + +CVE: CVE-2019-3832 +Upstream-Status: Backport [7408c4c788ce047d4e652b60a04e7796bcd7267e] +Signed-off-by: Ross Burton <ross.burton@intel.com> + +If loop_count is bigger than the array, truncate it to the array +length (and not to 32k). + +CVE-2019-3832 + +--- + src/wav.c | 6 ++++-- + 1 file changed, 4 insertions(+), 2 deletions(-) + +diff --git a/src/wav.c b/src/wav.c +index daae3cc..8851549 100644 +--- a/src/wav.c ++++ b/src/wav.c +@@ -1094,8 +1094,10 @@ wav_write_header (SF_PRIVATE *psf, int calc_length) + psf_binheader_writef (psf, "44", 0, 0) ; /* SMTPE format */ + psf_binheader_writef (psf, "44", psf->instrument->loop_count, 0) ; + +- /* Loop count is signed 16 bit number so we limit it range to something sensible. */ +- psf->instrument->loop_count &= 0x7fff ; ++ /* Make sure we don't read past the loops array end. */ ++ if (psf->instrument->loop_count > ARRAY_LEN (psf->instrument->loops)) ++ psf->instrument->loop_count = ARRAY_LEN (psf->instrument->loops) ; ++ + for (tmp = 0 ; tmp < psf->instrument->loop_count ; tmp++) + { int type ; + |
