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32 lines
1002 B
32 lines
1002 B
5 years ago
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From f0709e3ca8f8947f2d91ed34e92e38a4c23eae63 Mon Sep 17 00:00:00 2001
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From: Daniel Veillard <veillard@redhat.com>
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Date: Tue, 3 Nov 2015 15:31:25 +0800
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Subject: [PATCH] CVE-2015-8035 Fix XZ compression support loop
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For https://bugzilla.gnome.org/show_bug.cgi?id=757466
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DoS when parsing specially crafted XML document if XZ support
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is compiled in (which wasn't the case for 2.9.2 and master since
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Nov 2013, fixed in next commit !)
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---
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xzlib.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/xzlib.c b/xzlib.c
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index 0dcb9f48..1fab5463 100644
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--- a/xzlib.c
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+++ b/xzlib.c
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@@ -581,6 +581,10 @@ xz_decomp(xz_statep state)
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xz_error(state, LZMA_DATA_ERROR, "compressed data error");
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return -1;
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}
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+ if (ret == LZMA_PROG_ERROR) {
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+ xz_error(state, LZMA_PROG_ERROR, "compression error");
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+ return -1;
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+ }
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} while (strm->avail_out && ret != LZMA_STREAM_END);
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/* update available output and crc check value */
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--
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2.22.0
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