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[dunfell,12/22] ghostscript: backport fix for CVE-2023-38559

Message ID f70113d1d5b5359c8b668ba43aac362457927d9e.1691961051.git.steve@sakoman.com
State Accepted, archived
Headers show
Series [dunfell,01/22] ruby/cgi-gem: CVE-2021-33621 HTTP response splitting in CGI | expand

Commit Message

Steve Sakoman Aug. 13, 2023, 9:18 p.m. UTC 
From: Vijay Anusuri <vanusuri@mvista.com>

Upstream-Status: Backport from https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=d81b82c70bc1fb9991bb95f1201abb5dea55f57f

Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
---
 ...pcx-buffer-overrun-fix-from-devices-.patch | 31 +++++++++++++++++++
 .../ghostscript/ghostscript_9.52.bb           |  1 +
 2 files changed, 32 insertions(+)
 create mode 100644 meta/recipes-extended/ghostscript/ghostscript/0001-Bug-706897-Copy-pcx-buffer-overrun-fix-from-devices-.patch
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Patch

diff --git a/meta/recipes-extended/ghostscript/ghostscript/0001-Bug-706897-Copy-pcx-buffer-overrun-fix-from-devices-.patch b/meta/recipes-extended/ghostscript/ghostscript/0001-Bug-706897-Copy-pcx-buffer-overrun-fix-from-devices-.patch
new file mode 100644
index 0000000000..91b9f6df50
--- /dev/null
+++ b/meta/recipes-extended/ghostscript/ghostscript/0001-Bug-706897-Copy-pcx-buffer-overrun-fix-from-devices-.patch
@@ -0,0 +1,31 @@ 
+From d81b82c70bc1fb9991bb95f1201abb5dea55f57f Mon Sep 17 00:00:00 2001
+From: Chris Liddell <chris.liddell@artifex.com>
+Date: Mon, 17 Jul 2023 14:06:37 +0100
+Subject: [PATCH] Bug 706897: Copy pcx buffer overrun fix from
+ devices/gdevpcx.c
+
+Bounds check the buffer, before dereferencing the pointer.
+
+Upstream-Status: Backport [https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=d81b82c70bc1fb9991bb95f1201abb5dea55f57f]
+CVE: CVE-2023-38559
+Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
+---
+ base/gdevdevn.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/base/gdevdevn.c b/base/gdevdevn.c
+index 3b019d6..2888776 100644
+--- a/base/gdevdevn.c
++++ b/base/gdevdevn.c
+@@ -1980,7 +1980,7 @@ devn_pcx_write_rle(const byte * from, const byte * end, int step, gp_file * file
+         byte data = *from;
+ 
+         from += step;
+-        if (data != *from || from == end) {
++        if (from >= end || data != *from) {
+             if (data >= 0xc0)
+                 gp_fputc(0xc1, file);
+         } else {
+-- 
+2.25.1
+
diff --git a/meta/recipes-extended/ghostscript/ghostscript_9.52.bb b/meta/recipes-extended/ghostscript/ghostscript_9.52.bb
index 57f0b51ad3..37e9ed8e84 100644
--- a/meta/recipes-extended/ghostscript/ghostscript_9.52.bb
+++ b/meta/recipes-extended/ghostscript/ghostscript_9.52.bb
@@ -40,6 +40,7 @@  SRC_URI_BASE = "https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/d
                 file://CVE-2021-3781_2.patch \
                 file://CVE-2021-3781_3.patch \
                 file://CVE-2023-28879.patch \
+                file://0001-Bug-706897-Copy-pcx-buffer-overrun-fix-from-devices-.patch \
 "
 
 SRC_URI = "${SRC_URI_BASE} \