cups: Backport fix for CVE-2023-32360 and CVE-2023-4504

Upstream commits:
https://github.com/OpenPrinting/cups/commit/a0c8b9c9556882f00c68b9727a95a1b6d1452913
& https://github.com/OpenPrinting/cups/commit/2431caddb7e6a87f04ac90b5c6366ad268b6ff31

(From OE-Core rev: d14dce8ba2a8b4bf05c7c5ea7292b0c2c327f088)

Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

3 files changed, 73 insertions, 0 deletions

diff --git a/meta/recipes-extended/cups/cups.inc b/meta/recipes-extended/cups/cups.inc
index 1d2377486a..6cfe314f20 100644
--- a/meta/recipes-extended/cups/cups.inc
+++ b/meta/recipes-extended/cups/cups.inc
@@ -16,6 +16,8 @@ SRC_URI = "https://github.com/apple/cups/releases/download/v${PV}/${BP}-source.t
            file://CVE-2022-26691.patch \
            file://CVE-2023-32324.patch \
            file://CVE-2023-34241.patch \
+           file://CVE-2023-32360.patch \
+           file://CVE-2023-4504.patch \
            "
 
 UPSTREAM_CHECK_URI = "https://github.com/apple/cups/releases"
diff --git a/meta/recipes-extended/cups/cups/CVE-2023-32360.patch b/meta/recipes-extended/cups/cups/CVE-2023-32360.patch
new file mode 100644
index 0000000000..4d39e1e57f
--- /dev/null
+++ b/meta/recipes-extended/cups/cups/CVE-2023-32360.patch
@@ -0,0 +1,31 @@
+From a0c8b9c9556882f00c68b9727a95a1b6d1452913 Mon Sep 17 00:00:00 2001
+From: Michael R Sweet <michael.r.sweet@gmail.com>
+Date: Tue, 6 Dec 2022 09:04:01 -0500
+Subject: [PATCH] Require authentication for CUPS-Get-Document.
+
+Upstream-Status: Backport [https://github.com/OpenPrinting/cups/commit/a0c8b9c9556882f00c68b9727a95a1b6d1452913]
+CVE: CVE-2023-32360
+Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
+---
+ conf/cupsd.conf.in | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/conf/cupsd.conf.in b/conf/cupsd.conf.in
+index b258849078..a07536f3e4 100644
+--- a/conf/cupsd.conf.in
++++ b/conf/cupsd.conf.in
+@@ -68,7 +68,13 @@ IdleExitTimeout @EXIT_TIMEOUT@
+     Order deny,allow
+   </Limit>
+ 
+-  <Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job Cancel-My-Jobs Close-Job CUPS-Move-Job CUPS-Get-Document>
++  <Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job Cancel-My-Jobs Close-Job CUPS-Move-Job>
++    Require user @OWNER @SYSTEM
++    Order deny,allow
++  </Limit>
++
++  <Limit CUPS-Get-Document>
++    AuthType Default
+     Require user @OWNER @SYSTEM
+     Order deny,allow
+   </Limit>
diff --git a/meta/recipes-extended/cups/cups/CVE-2023-4504.patch b/meta/recipes-extended/cups/cups/CVE-2023-4504.patch
new file mode 100644
index 0000000000..be0db1fbd4
--- /dev/null
+++ b/meta/recipes-extended/cups/cups/CVE-2023-4504.patch
@@ -0,0 +1,40 @@
+From a9a7daa77699bd58001c25df8a61a8029a217ddf Mon Sep 17 00:00:00 2001
+From: Zdenek Dohnal <zdohnal@redhat.com>
+Date: Fri, 1 Sep 2023 16:47:29 +0200
+Subject: [PATCH] raster-interpret.c: Fix CVE-2023-4504
+
+We didn't check for end of buffer if it looks there is an escaped
+character - check for NULL terminator there and if found, return NULL
+as return value and in `ptr`, because a lone backslash is not
+a valid PostScript character.
+
+Upstream-Status: Backport [https://github.com/OpenPrinting/cups/commit/2431caddb7e6a87f04ac90b5c6366ad268b6ff31]
+CVE: CVE-2023-4504
+Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
+---
+ cups/raster-interpret.c | 14 +++++++++++++-
+ 1 file changed, 13 insertions(+), 1 deletion(-)
+
+--- a/cups/raster-interpret.c
++++ b/cups/raster-interpret.c
+@@ -1113,7 +1113,19 @@ scan_ps(_cups_ps_stack_t *st,            /* I  - S
+ 
+            cur ++;
+ 
+-            if (*cur == 'b')
++          /*
++           * Return NULL if we reached NULL terminator, a lone backslash
++            * is not a valid character in PostScript.
++           */
++
++           if (!*cur)
++           {
++             *ptr = NULL;
++
++             return (NULL);
++           }
++
++           if (*cur == 'b')
+              *valptr++ = '\b';
+            else if (*cur == 'f')
+              *valptr++ = '\f';