|
 |
623fdc |
From bdd4a0cecd745cb4825e4508b5bdf2579731086a Mon Sep 17 00:00:00 2001
|
|
|
623fdc |
From: Petr Stodulka <pstodulk@redhat.com>
|
|
|
623fdc |
Date: Mon, 14 Sep 2015 18:23:17 +0200
|
|
|
623fdc |
Subject: [PATCH 1/3] upstream fix for heap overflow
|
|
|
623fdc |
|
|
|
623fdc |
https://bugzilla.redhat.com/attachment.cgi?id=1073002
|
|
|
623fdc |
---
|
|
|
623fdc |
crypt.c | 12 +++++++++++-
|
|
|
623fdc |
1 file changed, 11 insertions(+), 1 deletion(-)
|
|
|
623fdc |
|
|
|
623fdc |
diff --git a/crypt.c b/crypt.c
|
|
|
623fdc |
index 784e411..a8975f2 100644
|
|
|
623fdc |
--- a/crypt.c
|
|
|
623fdc |
+++ b/crypt.c
|
|
|
623fdc |
@@ -465,7 +465,17 @@ int decrypt(__G__ passwrd)
|
|
|
623fdc |
GLOBAL(pInfo->encrypted) = FALSE;
|
|
|
623fdc |
defer_leftover_input(__G);
|
|
|
623fdc |
for (n = 0; n < RAND_HEAD_LEN; n++) {
|
|
|
623fdc |
- b = NEXTBYTE;
|
|
|
623fdc |
+ /* 2012-11-23 SMS. (OUSPG report.)
|
|
|
623fdc |
+ * Quit early if compressed size < HEAD_LEN. The resulting
|
|
|
623fdc |
+ * error message ("unable to get password") could be improved,
|
|
|
623fdc |
+ * but it's better than trying to read nonexistent data, and
|
|
|
623fdc |
+ * then continuing with a negative G.csize. (See
|
|
|
623fdc |
+ * fileio.c:readbyte()).
|
|
|
623fdc |
+ */
|
|
|
623fdc |
+ if ((b = NEXTBYTE) == (ush)EOF)
|
|
|
623fdc |
+ {
|
|
|
623fdc |
+ return PK_ERR;
|
|
|
623fdc |
+ }
|
|
|
623fdc |
h[n] = (uch)b;
|
|
|
623fdc |
Trace((stdout, " (%02x)", h[n]));
|
|
|
623fdc |
}
|
|
|
623fdc |
--
|
|
|
623fdc |
2.4.6
|
|
|
623fdc |
|
|
|
623fdc |
|
|
|
623fdc |
From 4b48844661ff9569f2ecf582a387d46a5775b5d8 Mon Sep 17 00:00:00 2001
|
|
|
623fdc |
From: Kamil Dudka <kdudka@redhat.com>
|
|
|
623fdc |
Date: Mon, 14 Sep 2015 18:24:56 +0200
|
|
|
623fdc |
Subject: [PATCH 2/3] fix infinite loop when extracting empty bzip2 data
|
|
|
623fdc |
|
|
|
623fdc |
Bug: https://sourceforge.net/p/infozip/patches/23/
|
|
|
623fdc |
---
|
|
|
623fdc |
extract.c | 6 ++++++
|
|
|
623fdc |
1 file changed, 6 insertions(+)
|
|
|
623fdc |
|
|
|
623fdc |
diff --git a/extract.c b/extract.c
|
|
|
623fdc |
index 7134bfe..29db027 100644
|
|
|
623fdc |
--- a/extract.c
|
|
|
623fdc |
+++ b/extract.c
|
|
|
623fdc |
@@ -2733,6 +2733,12 @@ __GDEF
|
|
|
623fdc |
int repeated_buf_err;
|
|
|
623fdc |
bz_stream bstrm;
|
|
|
623fdc |
|
|
|
623fdc |
+ if (G.incnt <= 0 && G.csize <= 0L) {
|
|
|
623fdc |
+ /* avoid an infinite loop */
|
|
|
623fdc |
+ Trace((stderr, "UZbunzip2() got empty input\n"));
|
|
|
623fdc |
+ return 2;
|
|
|
623fdc |
+ }
|
|
|
623fdc |
+
|
|
|
623fdc |
#if (defined(DLL) && !defined(NO_SLIDE_REDIR))
|
|
|
623fdc |
if (G.redirect_slide)
|
|
|
623fdc |
wsize = G.redirect_size, redirSlide = G.redirect_buffer;
|
|
|
623fdc |
--
|
|
|
623fdc |
2.4.6
|
|
|
623fdc |
|
|
|
623fdc |
|
|
|
623fdc |
From bd150334fb4084f5555a6be26b015a0671cb5b74 Mon Sep 17 00:00:00 2001
|
|
|
623fdc |
From: Kamil Dudka <kdudka@redhat.com>
|
|
|
623fdc |
Date: Tue, 22 Sep 2015 18:52:23 +0200
|
|
|
623fdc |
Subject: [PATCH 3/3] extract: prevent unsigned overflow on invalid input
|
|
|
623fdc |
|
|
|
623fdc |
Suggested-by: Stefan Cornelius
|
|
|
623fdc |
---
|
|
|
623fdc |
extract.c | 11 ++++++++++-
|
|
|
623fdc |
1 file changed, 10 insertions(+), 1 deletion(-)
|
|
|
623fdc |
|
|
|
623fdc |
diff --git a/extract.c b/extract.c
|
|
|
623fdc |
index 29db027..b9ae667 100644
|
|
|
623fdc |
--- a/extract.c
|
|
|
623fdc |
+++ b/extract.c
|
|
|
623fdc |
@@ -1257,8 +1257,17 @@ static int extract_or_test_entrylist(__G__ numchunk,
|
|
|
623fdc |
if (G.lrec.compression_method == STORED) {
|
|
|
623fdc |
zusz_t csiz_decrypted = G.lrec.csize;
|
|
|
623fdc |
|
|
|
623fdc |
- if (G.pInfo->encrypted)
|
|
|
623fdc |
+ if (G.pInfo->encrypted) {
|
|
|
623fdc |
+ if (csiz_decrypted < 12) {
|
|
|
623fdc |
+ /* handle the error now to prevent unsigned overflow */
|
|
|
623fdc |
+ Info(slide, 0x401, ((char *)slide,
|
|
|
623fdc |
+ LoadFarStringSmall(ErrUnzipNoFile),
|
|
|
623fdc |
+ LoadFarString(InvalidComprData),
|
|
|
623fdc |
+ LoadFarStringSmall2(Inflate)));
|
|
|
623fdc |
+ return PK_ERR;
|
|
|
623fdc |
+ }
|
|
|
623fdc |
csiz_decrypted -= 12;
|
|
|
623fdc |
+ }
|
|
|
623fdc |
if (G.lrec.ucsize != csiz_decrypted) {
|
|
|
623fdc |
Info(slide, 0x401, ((char *)slide,
|
|
|
623fdc |
LoadFarStringSmall2(WrnStorUCSizCSizDiff),
|
|
|
623fdc |
--
|
|
|
623fdc |
2.5.2
|
|
|
623fdc |
|