package/busybox: patch CVE-2025-60876

This commit fixes the following vulenerability:

- CVE-2025-60876:
    BusyBox wget thru 1.3.7 accepted raw CR (0x0D)/LF (0x0A) and other C0
    control bytes in the HTTP request-target (path/query), allowing the
    request line to be split and attacker-controlled headers to be
    injected. To preserve the HTTP/1.1 request-line shape METHOD SP
    request-target SP HTTP/1.1, a raw space (0x20) in the request-target
    must also be rejected (clients should use %20).

For more information, see:
    - https://www.cve.org/CVERecord?id=CVE-2025-60876
    - https://lists.busybox.net/pipermail/busybox/2025-November/091840.html
    - https://sources.debian.org/data/main/b/busybox/1%3A1.37.0-10/debian/patches/wget-disallow-control-chars-in-URLs-CVE-2025-60876.patch

Signed-off-by: Thomas Perale <thomas.perale@mind.be>
Signed-off-by: Julien Olivain <ju.o@free.fr>

package/busybox/0014-wget-dont-allow-control-characters-or-spaces-in-the-URL.patch

@@ -0,0 +1,42 @@
+From: Radoslav Kolev <radoslav.kolev@suse.com>
+Date: Fri, 21 Nov 2025 11:21:18 +0200
+Subject: wget: don't allow control characters or spaces in the URL
+Forwarded: yes, https://lists.busybox.net/pipermail/busybox/2025-November/091840.html
+Bug-Debian: https://bugs.debian.org/1120795
+
+Fixes CVE-2025-60876 malicious URL can be used to inject
+HTTP headers in the request.
+
+Signed-off-by: Radoslav Kolev <radoslav.kolev@suse.com>
+Reviewed-by: Emmanuel Deloget <logout@free.fr>
+Upstream: https://sources.debian.org/data/main/b/busybox/1%3A1.37.0-10/debian/patches/wget-disallow-control-chars-in-URLs-CVE-2025-60876.patch
+Upstream: https://lists.busybox.net/pipermail/busybox/2025-November/091840.html
+CVE: CVE-2025-60876
+Signed-off-by: Thomas Perale <thomas.perale@mind.be>
+---
+ networking/wget.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/networking/wget.c b/networking/wget.c
+index ec3767793..fa555427b 100644
+--- a/networking/wget.c
++++ b/networking/wget.c
+@@ -536,6 +536,15 @@ static void parse_url(const char *src_url, struct host_info *h)
+ {
+ 	char *url, *p, *sp;
+ 
++	/* Fix for CVE-2025-60876 - don't allow control characters or spaces in the URL */
++	/* otherwise a malicious URL can be used to inject HTTP headers in the request */
++	const unsigned char *u = (void *) src_url;
++	while (*u) {
++		if (*u <= ' ')
++			bb_simple_error_msg_and_die("Unencoded control character found in the URL!");
++		u++;
++	}
++
+ 	free(h->allocated);
+ 	h->allocated = url = xstrdup(src_url);
+ 
+-- 
+2.47.3
+

package/busybox/busybox.mk

@@ -19,6 +19,9 @@ BUSYBOX_IGNORE_CVES += CVE-2022-28391
 # 0013-testsuite-tar-tests-fix-test-after-cve-2025-46394.patch
 BUSYBOX_IGNORE_CVES += CVE-2025-46394
 
+# 0014-wget-dont-allow-control-characters-or-spaces-in-the-URL.patch
+BUSYBOX_IGNORE_CVES += CVE-2025-60876
+
 BUSYBOX_CFLAGS = \
 	$(TARGET_CFLAGS)