diff options
Diffstat (limited to 'gnu/packages/patches/unzip-fix-overflows-and-infloop.patch')
| -rw-r--r-- | gnu/packages/patches/unzip-fix-overflows-and-infloop.patch | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/gnu/packages/patches/unzip-fix-overflows-and-infloop.patch b/gnu/packages/patches/unzip-fix-overflows-and-infloop.patch deleted file mode 100644 index 33498db95e..0000000000 --- a/gnu/packages/patches/unzip-fix-overflows-and-infloop.patch +++ /dev/null @@ -1,108 +0,0 @@ -Copied from Fedora. - -http://pkgs.fedoraproject.org/cgit/unzip.git/tree/unzip-6.0-heap-overflow-infloop.patch?id=d18f821e - -From bdd4a0cecd745cb4825e4508b5bdf2579731086a Mon Sep 17 00:00:00 2001 -From: Petr Stodulka <pstodulk@redhat.com> -Date: Mon, 14 Sep 2015 18:23:17 +0200 -Subject: [PATCH 1/3] upstream fix for heap overflow - -https://bugzilla.redhat.com/attachment.cgi?id=1073002 ---- - crypt.c | 12 +++++++++++- - 1 file changed, 11 insertions(+), 1 deletion(-) - -diff --git a/crypt.c b/crypt.c -index 784e411..a8975f2 100644 ---- a/crypt.c -+++ b/crypt.c -@@ -465,7 +465,17 @@ int decrypt(__G__ passwrd) - GLOBAL(pInfo->encrypted) = FALSE; - defer_leftover_input(__G); - for (n = 0; n < RAND_HEAD_LEN; n++) { -- b = NEXTBYTE; -+ /* 2012-11-23 SMS. (OUSPG report.) -+ * Quit early if compressed size < HEAD_LEN. The resulting -+ * error message ("unable to get password") could be improved, -+ * but it's better than trying to read nonexistent data, and -+ * then continuing with a negative G.csize. (See -+ * fileio.c:readbyte()). -+ */ -+ if ((b = NEXTBYTE) == (ush)EOF) -+ { -+ return PK_ERR; -+ } - h[n] = (uch)b; - Trace((stdout, " (%02x)", h[n])); - } --- -2.4.6 - - -From 4b48844661ff9569f2ecf582a387d46a5775b5d8 Mon Sep 17 00:00:00 2001 -From: Kamil Dudka <kdudka@redhat.com> -Date: Mon, 14 Sep 2015 18:24:56 +0200 -Subject: [PATCH 2/3] fix infinite loop when extracting empty bzip2 data - -Bug: https://sourceforge.net/p/infozip/patches/23/ ---- - extract.c | 6 ++++++ - 1 file changed, 6 insertions(+) - -diff --git a/extract.c b/extract.c -index 7134bfe..29db027 100644 ---- a/extract.c -+++ b/extract.c -@@ -2733,6 +2733,12 @@ __GDEF - int repeated_buf_err; - bz_stream bstrm; - -+ if (G.incnt <= 0 && G.csize <= 0L) { -+ /* avoid an infinite loop */ -+ Trace((stderr, "UZbunzip2() got empty input\n")); -+ return 2; -+ } -+ - #if (defined(DLL) && !defined(NO_SLIDE_REDIR)) - if (G.redirect_slide) - wsize = G.redirect_size, redirSlide = G.redirect_buffer; --- -2.4.6 - - -From bd150334fb4084f5555a6be26b015a0671cb5b74 Mon Sep 17 00:00:00 2001 -From: Kamil Dudka <kdudka@redhat.com> -Date: Tue, 22 Sep 2015 18:52:23 +0200 -Subject: [PATCH 3/3] extract: prevent unsigned overflow on invalid input - -Suggested-by: Stefan Cornelius ---- - extract.c | 11 ++++++++++- - 1 file changed, 10 insertions(+), 1 deletion(-) - -diff --git a/extract.c b/extract.c -index 29db027..b9ae667 100644 ---- a/extract.c -+++ b/extract.c -@@ -1257,8 +1257,17 @@ static int extract_or_test_entrylist(__G__ numchunk, - if (G.lrec.compression_method == STORED) { - zusz_t csiz_decrypted = G.lrec.csize; - -- if (G.pInfo->encrypted) -+ if (G.pInfo->encrypted) { -+ if (csiz_decrypted <= 12) { -+ /* handle the error now to prevent unsigned overflow */ -+ Info(slide, 0x401, ((char *)slide, -+ LoadFarStringSmall(ErrUnzipNoFile), -+ LoadFarString(InvalidComprData), -+ LoadFarStringSmall2(Inflate))); -+ return PK_ERR; -+ } - csiz_decrypted -= 12; -+ } - if (G.lrec.ucsize != csiz_decrypted) { - Info(slide, 0x401, ((char *)slide, - LoadFarStringSmall2(WrnStorUCSizCSizDiff), --- -2.5.2 - |