Update to 0.2.4

Resolves CVE-2012-4510
Revert stricter validation of printer names
This commit is contained in:
Marek Kasik 2012-10-17 11:08:47 +02:00
parent a90252e13e
commit 996ab1752e
4 changed files with 65 additions and 3 deletions

1
.gitignore vendored
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@ -4,3 +4,4 @@ cups-pk-helper-0.0.4.tar.bz2
/cups-pk-helper-0.1.3.tar.bz2
/cups-pk-helper-0.2.1.tar.bz2
/cups-pk-helper-0.2.2.tar.bz2
/cups-pk-helper-0.2.4.tar.bz2

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@ -0,0 +1,54 @@
From 7bf9cbe43ef8f648f308e4760f75c2aa6b61fa8e Mon Sep 17 00:00:00 2001
From: Vincent Untz <vuntz@suse.com>
Date: Tue, 27 Mar 2012 17:47:07 +0200
Subject: [PATCH] Be stricter when validating printer names
Only alphanumerical characters and the underscore are valid, and the
name must not be longer than 127 characters. See
http://www.cups.org/documentation.php/doc-1.1/sam.html#4_1
---
src/cups.c | 20 +++++++++++---------
1 file changed, 11 insertions(+), 9 deletions(-)
diff --git a/src/cups.c b/src/cups.c
index 332abbe..1b2562b 100644
--- a/src/cups.c
+++ b/src/cups.c
@@ -287,23 +287,25 @@ _cph_cups_is_printer_name_valid_internal (const char *name)
int i;
int len;
+ /* Quoting http://www.cups.org/documentation.php/doc-1.1/sam.html#4_1:
+ *
+ * The printer name must start with any printable character except
+ * " ", "/", and "@". It can contain up to 127 letters, numbers, and
+ * the underscore (_).
+ *
+ * The first part is a bit weird, as the second part is more
+ * restrictive. So we only consider the second part. */
+
/* no empty string */
if (!name || name[0] == '\0')
return FALSE;
len = strlen (name);
- /* no string that is too long; see comment at the beginning of the
- * validation code block */
- if (len > CPH_STR_MAXLEN)
+ if (len > 127)
return FALSE;
- /* only printable characters, no space, no /, no # */
for (i = 0; i < len; i++) {
- if (!g_ascii_isprint (name[i]))
- return FALSE;
- if (g_ascii_isspace (name[i]))
- return FALSE;
- if (name[i] == '/' || name[i] == '#')
+ if (!g_ascii_isalnum (name[i]) && name[i] != '_')
return FALSE;
}
--
1.7.12.1

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@ -1,6 +1,6 @@
Name: cups-pk-helper
Version: 0.2.2
Release: 2%{?dist}
Version: 0.2.4
Release: 1%{?dist}
Summary: A helper that makes system-config-printer use PolicyKit
Group: System Environment/Base
@ -9,6 +9,7 @@ URL: http://www.vuntz.net/download/cups-pk-helper/
Source0: http://cgit.freedesktop.org/cups-pk-helper/snapshot/cups-pk-helper-%{version}.tar.bz2
Patch0: polkit_result.patch
Patch1: 0001-Be-stricter-when-validating-printer-names.patch
BuildRequires: libtool >= 1.4.3
BuildRequires: cups-devel >= 1.2
@ -38,6 +39,7 @@ interfaces available under control of PolicyKit.
%setup -q
%patch0 -p1 -b .polkit-result
%patch1 -p1 -R -b .strict-names
%build
@ -65,6 +67,11 @@ make install DESTDIR=$RPM_BUILD_ROOT
%changelog
* Wed Oct 17 2012 Marek Kasik <mkasik@redhat.com> - 0.2.4-1
- Update to 0.2.4
- Resolves CVE-2012-4510
- Revert stricter validation of printer names
* Wed Jul 18 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.2.2-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass_Rebuild

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@ -1 +1 @@
848ed420884b7c528eb697047fa1ca52 cups-pk-helper-0.2.2.tar.bz2
a039ec6ba20f85a26b2807b28968a749 cups-pk-helper-0.2.4.tar.bz2