less: backport the fix for CVE-2022-46663

Upstream-Status: Backport from https://github.com/gwsw/less/commit/a78e1351113cef564d790a730d657a321624d79c

(From OE-Core rev: 6cec065d795a562460c422947ac70c4a6f3f3175)

Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/less/less/CVE-2022-46663.patch

@@ -0,0 +1,31 @@
+From a78e1351113cef564d790a730d657a321624d79c Mon Sep 17 00:00:00 2001
+From: Mark Nudelman <markn@greenwoodsoftware.com>
+Date: Fri, 7 Oct 2022 19:25:46 -0700
+Subject: [PATCH] End OSC8 hyperlink on invalid embedded escape sequence.
+
+
+CVE: CVE-2022-46663
+Upstream-Status: Backport [https://github.com/gwsw/less/commit/a78e1351113cef564d790a730d657a321624d79c]
+Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
+---
+ line.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/line.c b/line.c
+index 0ef9b07..9d49cf8 100644
+--- a/line.c
++++ b/line.c
+@@ -633,8 +633,8 @@ ansi_step(pansi, ch)
+ 		/* Hyperlink ends with \7 or ESC-backslash. */
+ 		if (ch == '\7')
+ 			return ANSI_END;
+-		if (pansi->prev_esc && ch == '\\')
+-			return ANSI_END;
++		if (pansi->prev_esc)
++            return (ch == '\\') ? ANSI_END : ANSI_ERR;
+ 		pansi->prev_esc = (ch == ESC);
+ 		return ANSI_MID;
+ 	}
+-- 
+2.25.1
+

meta/recipes-extended/less/less_600.bb

@@ -26,6 +26,7 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=1ebbd3e34237af26da5dc08a4e440464 \
 DEPENDS = "ncurses"
 
 SRC_URI = "http://www.greenwoodsoftware.com/${BPN}/${BPN}-${PV}.tar.gz \
+           file://CVE-2022-46663.patch \
 	  "
 
 SRC_URI[sha256sum] = "6633d6aa2b3cc717afb2c205778c7c42c4620f63b1d682f3d12c98af0be74d20"