SOURCES/varnish-6.0.8-CVE-2022-45060.patch

@@ -0,0 +1,85 @@
+diff --git a/bin/varnishd/http2/cache_http2_hpack.c b/bin/varnishd/http2/cache_http2_hpack.c
+index d432629..b0dacb9 100644
+--- a/bin/varnishd/http2/cache_http2_hpack.c
++++ b/bin/varnishd/http2/cache_http2_hpack.c
+@@ -93,18 +93,25 @@ static h2_error
+ h2h_addhdr(struct http *hp, char *b, size_t namelen, size_t len)
+ {
+ 	/* XXX: This might belong in cache/cache_http.c */
++	const char *b0;
+ 	unsigned n;
++	int disallow_empty;
++	char *p;
++	int i;
+ 
+ 	CHECK_OBJ_NOTNULL(hp, HTTP_MAGIC);
+ 	AN(b);
+ 	assert(namelen >= 2);	/* 2 chars from the ': ' that we added */
+ 	assert(namelen <= len);
++	
++	disallow_empty = 0;
+ 
+ 	if (len > UINT_MAX) {	/* XXX: cache_param max header size */
+ 		VSLb(hp->vsl, SLT_BogoHeader, "Header too large: %.20s", b);
+ 		return (H2SE_ENHANCE_YOUR_CALM);
+ 	}
+ 
++	b0 = b;
+ 	if (b[0] == ':') {
+ 		/* Match H/2 pseudo headers */
+ 		/* XXX: Should probably have some include tbl for
+@@ -113,10 +120,24 @@ h2h_addhdr(struct http *hp, char *b, size_t namelen, size_t len)
+ 			b += namelen;
+ 			len -= namelen;
+ 			n = HTTP_HDR_METHOD;
++			disallow_empty = 1;
++
++			/* First field cannot contain SP or CTL */
++			for (p = b, i = 0; i < len; p++, i++) {
++				if (vct_issp(*p) || vct_isctl(*p))
++					return (H2SE_PROTOCOL_ERROR);
++			}
+ 		} else if (!strncmp(b, ":path: ", namelen)) {
+ 			b += namelen;
+ 			len -= namelen;
+ 			n = HTTP_HDR_URL;
++			disallow_empty = 1;
++
++			/* Second field cannot contain LWS or CTL */
++			for (p = b, i = 0; i < len; p++, i++) {
++				if (vct_islws(*p) || vct_isctl(*p))
++					return (H2SE_PROTOCOL_ERROR);
++			}
+ 		} else if (!strncmp(b, ":scheme: ", namelen)) {
+ 			/* XXX: What to do about this one? (typically
+ 			   "http" or "https"). For now set it as a normal
+@@ -124,6 +145,15 @@ h2h_addhdr(struct http *hp, char *b, size_t namelen, size_t len)
+ 			b++;
+ 			len-=1;
+ 			n = hp->nhd;
++
++			for (p = b + namelen, i = 0; i < len-namelen;
++			    p++, i++) {
++				if (vct_issp(*p) || vct_isctl(*p))
++					return (H2SE_PROTOCOL_ERROR);
++			}
++
++			if (!i)
++				return (H2SE_PROTOCOL_ERROR);
+ 		} else if (!strncmp(b, ":authority: ", namelen)) {
+ 			b+=6;
+ 			len-=6;
+@@ -160,6 +190,13 @@ h2h_addhdr(struct http *hp, char *b, size_t namelen, size_t len)
+ 	hp->hd[n].b = b;
+ 	hp->hd[n].e = b + len;
+ 
++	if (disallow_empty && !Tlen(hp->hd[n])) {
++		VSLb(hp->vsl, SLT_BogoHeader,
++		    "Empty pseudo-header %.*s",
++		    (int)namelen, b0);
++		return (H2SE_PROTOCOL_ERROR);
++	}
++
+ 	return (0);
+ }
+ 

SPECS/varnish.spec

@@ -19,7 +19,7 @@
 Summary: High-performance HTTP accelerator
 Name: varnish
 Version: 6.0.8
-Release: 1%{?dist}.1
+Release: 2%{?dist}.1
 License: BSD
 Group: System Environment/Daemons
 URL: https://www.varnish-cache.org/
@@ -35,6 +35,9 @@ Patch11: varnish-6.0.0.fix_el6_fortify_source.patch
 # https://bugzilla.redhat.com/show_bug.cgi?id=2045031
 Patch100: varnish-6.0.8.CVE-2022-23959.patch
 
+# https://bugzilla.redhat.com/show_bug.cgi?id=2141844
+Patch101: varnish-6.0.8-CVE-2022-45060.patch
+
 Obsoletes: varnish-libs
 
 %if %{with python3}
@@ -144,6 +147,7 @@ sed -i '8 i\RPM_BUILD_ROOT=%{buildroot}' find-provides
 %endif
 
 %patch100 -p1
+%patch101 -p1
 
 %build
 %if 0%{?rhel} == 6
@@ -376,8 +380,12 @@ fi
 
 
 %changelog
-* Tue Feb 01 2022 Luboš Uhliarik <luhliari@redhat.com> - 6.0.8-1.1
-- Resolves: #2047648 - CVE-2022-23959 varnish:6/varnish: Varnish HTTP/1 Request
+* Mon Nov 14 2022 Luboš Uhliarik <luhliari@redhat.com> - 6.0.8-2.1
+- Resolves: #2142092 - CVE-2022-45060 varnish:6/varnish: Request Forgery
+  Vulnerability
+
+* Tue Feb 01 2022 Luboš Uhliarik <luhliari@redhat.com> - 6.0.8-2
+- Resolves: #2047650 - CVE-2022-23959 varnish:6/varnish: Varnish HTTP/1 Request
   Smuggling Vulnerability
 
 * Thu Jul 22 2021 Luboš Uhliarik <luhliari@redhat.com> - 6.0.8-1