gnu: libxfont@2: Update replacement to 2.0.3 [fixes CVE-2017-16611].

* gnu/packages/xorg.scm (libxfont2/fixed): Rename to ...
(libxfont2-2.0.3): ... this.  Make public.
[version]: New field.
[source]: Add URI and SHA256.  Remove patches.
(libxfont2)[replacement]: Change LIBXFONT2/FIXED to LIBXFONT2-2.0.3.
* gnu/packages/patches/libxfont-CVE-2017-13720.patch,
gnu/packages/patches/libxfont-CVE-2017-13722.patch: Delete files.
* gnu/local.mk (dist_patch_DATA): Remove them.
This commit is contained in:
Marius Bakke 2017-11-28 17:58:21 +01:00
parent 4fc61dac3c
commit 1ec0b7407f
No known key found for this signature in database
GPG Key ID: A2A06DF2A33A54FA
4 changed files with 12 additions and 95 deletions

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@ -842,8 +842,6 @@ dist_patch_DATA = \
%D%/packages/patches/libvirt-CVE-2017-1000256.patch \
%D%/packages/patches/libvpx-CVE-2016-2818.patch \
%D%/packages/patches/libxcb-python-3.5-compat.patch \
%D%/packages/patches/libxfont-CVE-2017-13720.patch \
%D%/packages/patches/libxfont-CVE-2017-13722.patch \
%D%/packages/patches/libxml2-CVE-2016-4658.patch \
%D%/packages/patches/libxml2-CVE-2016-5131.patch \
%D%/packages/patches/libxml2-CVE-2017-0663.patch \

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@ -1,36 +0,0 @@
Fix CVE-2017-13720.
Copied from upstream source repository:
<https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=d1e670a4a8704b8708e493ab6155589bcd570608>
From d1e670a4a8704b8708e493ab6155589bcd570608 Mon Sep 17 00:00:00 2001
From: Michal Srb <msrb@suse.com>
Date: Thu, 20 Jul 2017 13:38:53 +0200
Subject: Check for end of string in PatternMatch (CVE-2017-13720)
If a pattern contains '?' character, any character in the string is skipped,
even if it is '\0'. The rest of the matching then reads invalid memory.
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Julien Cristau <jcristau@debian.org>
diff --git a/src/fontfile/fontdir.c b/src/fontfile/fontdir.c
index 4ce2473..996b7d1 100644
--- a/src/fontfile/fontdir.c
+++ b/src/fontfile/fontdir.c
@@ -400,8 +400,10 @@ PatternMatch(char *pat, int patdashes, char *string, int stringdashes)
}
}
case '?':
- if (*string++ == XK_minus)
+ if ((t = *string++) == XK_minus)
stringdashes--;
+ if (!t)
+ return 0;
break;
case '\0':
return (*string == '\0');
--
cgit v0.10.2

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@ -1,53 +0,0 @@
Fix CVE-2017-13722.
Copied from upstream source repository:
<https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=672bb944311392e2415b39c0d63b1e1902905bcd>
From 672bb944311392e2415b39c0d63b1e1902905bcd Mon Sep 17 00:00:00 2001
From: Michal Srb <msrb@suse.com>
Date: Thu, 20 Jul 2017 17:05:23 +0200
Subject: pcfGetProperties: Check string boundaries (CVE-2017-13722)
Without the checks a malformed PCF file can cause the library to make
atom from random heap memory that was behind the `strings` buffer.
This may crash the process or leak information.
Signed-off-by: Julien Cristau <jcristau@debian.org>
diff --git a/src/bitmap/pcfread.c b/src/bitmap/pcfread.c
index dab1c44..ae34c28 100644
--- a/src/bitmap/pcfread.c
+++ b/src/bitmap/pcfread.c
@@ -45,6 +45,7 @@ from The Open Group.
#include <stdarg.h>
#include <stdint.h>
+#include <string.h>
void
pcfError(const char* message, ...)
@@ -311,11 +312,19 @@ pcfGetProperties(FontInfoPtr pFontInfo, FontFilePtr file,
if (IS_EOF(file)) goto Bail;
position += string_size;
for (i = 0; i < nprops; i++) {
+ if (props[i].name >= string_size) {
+ pcfError("pcfGetProperties(): String starts out of bounds (%ld/%d)\n", props[i].name, string_size);
+ goto Bail;
+ }
props[i].name = MakeAtom(strings + props[i].name,
- strlen(strings + props[i].name), TRUE);
+ strnlen(strings + props[i].name, string_size - props[i].name), TRUE);
if (isStringProp[i]) {
+ if (props[i].value >= string_size) {
+ pcfError("pcfGetProperties(): String starts out of bounds (%ld/%d)\n", props[i].value, string_size);
+ goto Bail;
+ }
props[i].value = MakeAtom(strings + props[i].value,
- strlen(strings + props[i].value), TRUE);
+ strnlen(strings + props[i].value, string_size - props[i].value), TRUE);
}
}
free(strings);
--
cgit v0.10.2

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@ -4892,7 +4892,7 @@ new API's in libXft, or the legacy API's in libX11.")
(package
(inherit libxfont)
(version "2.0.1")
(replacement libxfont2/fixed)
(replacement libxfont2-2.0.3)
(source (origin
(method url-fetch)
(uri (string-append "mirror://xorg/individual/lib/libXfont2-"
@ -4901,14 +4901,22 @@ new API's in libXft, or the legacy API's in libX11.")
(base32
"0znvwk36nhmyqpmhbm9mzisgixp1mp5qkfald8x1n5yxbm3vpyz9"))))))
(define libxfont2/fixed
;; Fixes the following security vulnerabilities:
;; https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13720
;; https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13722
;; https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16612
(define-public libxfont2-2.0.3
(package
(inherit libxfont2)
(version "2.0.3")
(source
(origin
(inherit (package-source libxfont2))
(patches (search-patches "libxfont-CVE-2017-13720.patch"
"libxfont-CVE-2017-13722.patch"))))))
(uri (string-append "mirror://xorg/individual/lib/libXfont2-"
version ".tar.bz2"))
(sha256
(base32
"0klwmimmhm3axpj8pwn5l41lbggh47r5aazhw63zxkbwfgyvg2hf"))))))
(define-public libxi
(package