33 lines
873 B
Diff
33 lines
873 B
Diff
Upstream-Status: Backport
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CVE: CVE-2015-7697
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Signed-off-by: Tudor Florea <tudor.flore@enea.com>
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From bd8a743ee0a77e65ad07ef4196c4cd366add3f26 Mon Sep 17 00:00:00 2001
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From: Kamil Dudka <kdudka@redhat.com>
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Date: Mon, 14 Sep 2015 18:24:56 +0200
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Subject: [PATCH 2/2] fix infinite loop when extracting empty bzip2 data
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---
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extract.c | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/extract.c b/extract.c
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index 7134bfe..29db027 100644
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--- a/extract.c
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+++ b/extract.c
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@@ -2733,6 +2733,12 @@ __GDEF
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int repeated_buf_err;
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bz_stream bstrm;
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+ if (G.incnt <= 0 && G.csize <= 0L) {
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+ /* avoid an infinite loop */
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+ Trace((stderr, "UZbunzip2() got empty input\n"));
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+ return 2;
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+ }
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+
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#if (defined(DLL) && !defined(NO_SLIDE_REDIR))
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if (G.redirect_slide)
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wsize = G.redirect_size, redirSlide = G.redirect_buffer;
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--
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2.4.6
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