diff options
Diffstat (limited to 'meta/recipes-extended/tar/tar/CVE-2019-9923.patch')
| -rw-r--r-- | meta/recipes-extended/tar/tar/CVE-2019-9923.patch | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/meta/recipes-extended/tar/tar/CVE-2019-9923.patch b/meta/recipes-extended/tar/tar/CVE-2019-9923.patch new file mode 100644 index 0000000000..146cbffea5 --- /dev/null +++ b/meta/recipes-extended/tar/tar/CVE-2019-9923.patch @@ -0,0 +1,38 @@ +From cb07844454d8cc9fb21f53ace75975f91185a120 Mon Sep 17 00:00:00 2001 +From: Sergey Poznyakoff <gray@gnu.org> +Date: Mon, 14 Jan 2019 15:22:09 +0200 +Subject: [PATCH] Fix possible NULL dereference (savannah bug #55369) + +* src/sparse.c (pax_decode_header): Check return from find_next_block. + +Upstream-Status: Backport +CVE: CVE-2019-9923 +Affects: tar < 1.32 +Signed-off-by: Armin kuster <akuster@mvista.com> + +--- + src/sparse.c | 4 ++++ + 1 file changed, 4 insertions(+) + +Index: tar-1.30/src/sparse.c +=================================================================== +--- tar-1.30.orig/src/sparse.c ++++ tar-1.30/src/sparse.c +@@ -1231,6 +1231,8 @@ pax_decode_header (struct tar_sparse_fil + set_next_block_after (b); \ + file->dumped_size += BLOCKSIZE; \ + b = find_next_block (); \ ++ if (!b) \ ++ FATAL_ERROR ((0, 0, _("Unexpected EOF in archive"))); \ + src = b->buffer; \ + endp = b->buffer + BLOCKSIZE; \ + } \ +@@ -1243,6 +1245,8 @@ pax_decode_header (struct tar_sparse_fil + set_next_block_after (current_header); + file->dumped_size += BLOCKSIZE; + blk = find_next_block (); ++ if (!blk) ++ FATAL_ERROR ((0, 0, _("Unexpected EOF in archive"))); + p = blk->buffer; + COPY_BUF (blk,nbuf,p); + if (!decode_num (&u, nbuf, TYPE_MAXIMUM (size_t))) |