From: Vijay Anusuri <[email protected]> Upstream-Status: Backport from https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=d81b82c70bc1fb9991bb95f1201abb5dea55f57f
Signed-off-by: Vijay Anusuri <[email protected]> --- ...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 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 <[email protected]> +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 <[email protected]> +--- + 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} \ -- 2.25.1
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