From f0709e3ca8f8947f2d91ed34e92e38a4c23eae63 Mon Sep 17 00:00:00 2001 From: Daniel Veillard Date: Tue, 3 Nov 2015 15:31:25 +0800 Subject: [PATCH] CVE-2015-8035 Fix XZ compression support loop For https://bugzilla.gnome.org/show_bug.cgi?id=757466 DoS when parsing specially crafted XML document if XZ support is compiled in (which wasn't the case for 2.9.2 and master since Nov 2013, fixed in next commit !) --- xzlib.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/xzlib.c b/xzlib.c index 0dcb9f4..1fab546 100644 --- a/xzlib.c +++ b/xzlib.c @@ -581,6 +581,10 @@ xz_decomp(xz_statep state) xz_error(state, LZMA_DATA_ERROR, "compressed data error"); return -1; } + if (ret == LZMA_PROG_ERROR) { + xz_error(state, LZMA_PROG_ERROR, "compression error"); + return -1; + } } while (strm->avail_out && ret != LZMA_STREAM_END); /* update available output and crc check value */ -- 2.6.3