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* gnu/packages/patches/unzip-fix-overflows-and-infloop.patch: Delete file. Its contents are now split into the following new files: * gnu/packages/patches/unzip-CVE-2015-7696.patch, gnu/packages/patches/unzip-CVE-2015-7697.patch, gnu/packages/patches/unzip-overflow-on-invalid-input.patch: New files. * gnu-system.am (dist_patch_DATA): Adjust accordingly. * gnu/packages/zip.scm (unzip)[source]: Adjust patches accordingly.
28 lines
808 B
Diff
28 lines
808 B
Diff
Copied from Debian.
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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: fix infinite loop when extracting empty bzip2 data
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Bug-Debian: https://bugs.debian.org/802160
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Bug-RedHat: https://bugzilla.redhat.com/show_bug.cgi?id=1260944
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Origin: other, https://bugzilla.redhat.com/attachment.cgi?id=1073339
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---
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extract.c | 6 ++++++
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1 file changed, 6 insertions(+)
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--- a/extract.c
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+++ b/extract.c
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@@ -2728,6 +2728,12 @@
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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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