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gnu: libtiff: Fix CVE-2018-{8905,10963}.

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* gnu/packages/patches/libtiff-CVE-2018-8905.patch,
gnu/packages/patches/libtiff-CVE-2018-10963.patch: New files.
* gnu/local.mk (dist_patch_DATA): Add them.
* gnu/packages/image.scm (libtiff)[replacement]: New field.
(libtiff/fixed): New variable.
This commit is contained in:
Leo Famulari 2018-06-25 16:28:00 -04:00
parent 671dd8d6e6
commit 8dbfaff028
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GPG key ID: 2646FA30BACA7F08
4 changed files with 115 additions and 0 deletions
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2
gnu/local.mk
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@ -887,6 +887,8 @@ dist_patch_DATA = \
%D%/packages/patches/libtheora-config-guess.patch \
%D%/packages/patches/libtiff-CVE-2017-9935.patch \
%D%/packages/patches/libtiff-CVE-2017-18013.patch \
%D%/packages/patches/libtiff-CVE-2018-8905.patch \
%D%/packages/patches/libtiff-CVE-2018-10963.patch \
%D%/packages/patches/libtool-skip-tests2.patch \
%D%/packages/patches/libusb-0.1-disable-tests.patch \
%D%/packages/patches/libusb-for-axoloti.patch \

12
gnu/packages/image.scm
View file

@ -394,6 +394,7 @@ extracting icontainer icon files.")
(define-public libtiff
(package
(name "libtiff")
(replacement libtiff/fixed)
(version "4.0.9")
(source
(origin
@ -426,6 +427,17 @@ collection of tools for doing simple manipulations of TIFF images.")
"See COPYRIGHT in the distribution."))
(home-page "http://www.simplesystems.org/libtiff/")))
(define libtiff/fixed
(package
(inherit libtiff)
(source
(origin
(inherit (package-source libtiff))
(patches
(append (origin-patches (package-source libtiff))
(search-patches "libtiff-CVE-2018-8905.patch"
"libtiff-CVE-2018-10963.patch")))))))
(define-public leptonica
(package
(name "leptonica")

40
gnu/packages/patches/libtiff-CVE-2018-10963.patch Normal file
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@ -0,0 +1,40 @@
Fix CVE-2018-10963:
http://bugzilla.maptools.org/show_bug.cgi?id=2795
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10963
Patch copied from upstream source repository:
https://gitlab.com/libtiff/libtiff/commit/de144fd228e4be8aa484c3caf3d814b6fa88c6d9
From de144fd228e4be8aa484c3caf3d814b6fa88c6d9 Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Sat, 12 May 2018 14:24:15 +0200
Subject: [PATCH] TIFFWriteDirectorySec: avoid assertion. Fixes
http://bugzilla.maptools.org/show_bug.cgi?id=2795. CVE-2018-10963
---
libtiff/tif_dirwrite.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/libtiff/tif_dirwrite.c b/libtiff/tif_dirwrite.c
index 2430de6d..c15a28db 100644
--- a/libtiff/tif_dirwrite.c
+++ b/libtiff/tif_dirwrite.c
@@ -695,8 +695,11 @@ TIFFWriteDirectorySec(TIFF* tif, int isimage, int imagedone, uint64* pdiroff)
}
break;
default:
- assert(0); /* we should never get here */
- break;
+ TIFFErrorExt(tif->tif_clientdata,module,
+ "Cannot write tag %d (%s)",
+ TIFFFieldTag(o),
+ o->field_name ? o->field_name : "unknown");
+ goto bad;
}
}
}
--
2.17.0

61
gnu/packages/patches/libtiff-CVE-2018-8905.patch Normal file
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@ -0,0 +1,61 @@
Fix CVE-2018-8095:
http://bugzilla.maptools.org/show_bug.cgi?id=2780
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8905
Patch copied from upstream source repository:
https://gitlab.com/libtiff/libtiff/commit/58a898cb4459055bb488ca815c23b880c242a27d
From 58a898cb4459055bb488ca815c23b880c242a27d Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Sat, 12 May 2018 15:32:31 +0200
Subject: [PATCH] LZWDecodeCompat(): fix potential index-out-of-bounds write.
Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2780 / CVE-2018-8905
The fix consists in using the similar code LZWDecode() to validate we
don't write outside of the output buffer.
---
libtiff/tif_lzw.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/libtiff/tif_lzw.c b/libtiff/tif_lzw.c
index 4ccb443c..94d85e38 100644
--- a/libtiff/tif_lzw.c
+++ b/libtiff/tif_lzw.c
@@ -602,6 +602,7 @@ LZWDecodeCompat(TIFF* tif, uint8* op0, tmsize_t occ0, uint16 s)
char *tp;
unsigned char *bp;
int code, nbits;
+ int len;
long nextbits, nextdata, nbitsmask;
code_t *codep, *free_entp, *maxcodep, *oldcodep;
@@ -753,13 +754,18 @@ LZWDecodeCompat(TIFF* tif, uint8* op0, tmsize_t occ0, uint16 s)
} while (--occ);
break;
}
- assert(occ >= codep->length);
- op += codep->length;
- occ -= codep->length;
- tp = op;
+ len = codep->length;
+ tp = op + len;
do {
- *--tp = codep->value;
- } while( (codep = codep->next) != NULL );
+ int t;
+ --tp;
+ t = codep->value;
+ codep = codep->next;
+ *tp = (char)t;
+ } while (codep && tp > op);
+ assert(occ >= len);
+ op += len;
+ occ -= len;
} else {
*op++ = (char)code;
occ--;
--
2.17.0