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(PA-5852) Apply CVE-2023-38545 patch for curl vulnerablity
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amitkarsale committed Oct 11, 2023
1 parent 247061a commit 43a75aa
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2 changes: 2 additions & 0 deletions configs/components/curl.rb
Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,8 @@
pkg.apply_patch 'resources/patches/curl/CVE-2023-27535.patch'
pkg.apply_patch 'resources/patches/curl/CVE-2023-28319.patch'
pkg.apply_patch 'resources/patches/curl/CVE-2023-32001.patch'
pkg.apply_patch 'resources/patches/curl/CVE-2023-38545.patch'
pkg.apply_patch 'resources/patches/curl/CVE-2023-38546.patch'

configure_options = []
configure_options << "--with-ssl=#{settings[:prefix]}"
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110 changes: 110 additions & 0 deletions resources/patches/curl/CVE-2023-38545.patch
Original file line number Diff line number Diff line change
@@ -0,0 +1,110 @@
diff --git a/lib/socks.c b/lib/socks.c
index 95c2b004c..8cf694d1d 100644
--- a/lib/socks.c
+++ b/lib/socks.c
@@ -588,9 +588,9 @@ static CURLproxycode do_SOCKS5(struct Curl_cfilter *cf,

/* RFC1928 chapter 5 specifies max 255 chars for domain name in packet */
if(!socks5_resolve_local && hostname_len > 255) {
- infof(data, "SOCKS5: server resolving disabled for hostnames of "
- "length > 255 [actual len=%zu]", hostname_len);
- socks5_resolve_local = TRUE;
+ failf(data, "SOCKS5: the destination hostname is too long to be "
+ "resolved remotely by the proxy.");
+ return CURLPX_LONG_HOSTNAME;
}

if(auth & ~(CURLAUTH_BASIC | CURLAUTH_GSSAPI))
@@ -904,7 +904,7 @@ static CURLproxycode do_SOCKS5(struct Curl_cfilter *cf,
}
else {
socksreq[len++] = 3;
- socksreq[len++] = (char) hostname_len; /* one byte address length */
+ socksreq[len++] = (unsigned char) hostname_len; /* one byte length */
memcpy(&socksreq[len], sx->hostname, hostname_len); /* w/o NULL */
len += hostname_len;
}
diff --git a/tests/data/Makefile.inc b/tests/data/Makefile.inc
index 97fdabcfa..f713c03b3 100644
--- a/tests/data/Makefile.inc
+++ b/tests/data/Makefile.inc
@@ -100,7 +100,8 @@ test679 test680 test681 test682 test683 test684 test685 \
\
test700 test701 test702 test703 test704 test705 test706 test707 test708 \
test709 test710 test711 test712 test713 test714 test715 test716 test717 \
-test718 test719 test720 test721 \
+test718 test719 test720 test721 test722 test723 test724 test725 test726 \
+test727 test728 \
\
test800 test801 test802 test803 test804 test805 test806 test807 test808 \
test809 test810 test811 test812 test813 test814 test815 test816 test817 \
diff --git a/tests/data/test728 b/tests/data/test728
new file mode 100644
index 000000000..05bcf2883
--- /dev/null
+++ b/tests/data/test728
@@ -0,0 +1,64 @@
+<testcase>
+<info>
+<keywords>
+HTTP
+HTTP GET
+SOCKS5
+SOCKS5h
+followlocation
+</keywords>
+</info>
+
+#
+# Server-side
+<reply>
+# The hostname in this redirect is 256 characters and too long (> 255) for
+# SOCKS5 remote resolve. curl must return error CURLE_PROXY in this case.
+<data>
+HTTP/1.1 301 Moved Permanently
+Location: http://AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA/
+Content-Length: 0
+Connection: close
+
+</data>
+</reply>
+
+#
+# Client-side
+<client>
+<features>
+proxy
+</features>
+<server>
+http
+socks5
+</server>
+ <name>
+SOCKS5h with HTTP redirect to hostname too long
+ </name>
+ <command>
+--no-progress-meter --location --proxy socks5h://%HOSTIP:%SOCKSPORT http://%HOSTIP:%HTTPPORT/%TESTNUMBER
+</command>
+</client>
+
+#
+# Verify data after the test has been "shot"
+<verify>
+<protocol crlf="yes">
+GET /%TESTNUMBER HTTP/1.1
+Host: %HOSTIP:%HTTPPORT
+User-Agent: curl/%VERSION
+Accept: */*
+
+</protocol>
+<errorcode>
+97
+</errorcode>
+# the error message is verified because error code CURLE_PROXY (97) may be
+# returned for any number of reasons and we need to make sure it is
+# specifically for the reason below so that we know the check is working.
+<stderr mode="text">
+curl: (97) SOCKS5: the destination hostname is too long to be resolved remotely by the proxy.
+</stderr>
+</verify>
+</testcase>
115 changes: 115 additions & 0 deletions resources/patches/curl/CVE-2023-38546.patch
Original file line number Diff line number Diff line change
@@ -0,0 +1,115 @@
diff --git a/lib/cookie.c b/lib/cookie.c
index c457b2d95..7a9daf038 100644
--- a/lib/cookie.c
+++ b/lib/cookie.c
@@ -118,7 +118,6 @@ static void freecookie(struct Cookie *co)
free(co->name);
free(co->value);
free(co->maxage);
- free(co->version);
free(co);
}

@@ -714,12 +713,8 @@ Curl_cookie_add(struct Curl_easy *data,
whatptr);
}
}
- else if(strcasecompare("version", name)) {
- strstore(&co->version, whatptr);
- if(!co->version) {
- badcookie = TRUE;
- break;
- }
+ else if((nlen == 7) && strncasecompare("version", namep, 7)) {
+ /* just ignore */
}
else if(strcasecompare("max-age", name)) {
/*
@@ -1174,7 +1169,6 @@ Curl_cookie_add(struct Curl_easy *data,
free(clist->path);
free(clist->spath);
free(clist->expirestr);
- free(clist->version);
free(clist->maxage);

*clist = *co; /* then store all the new data */
@@ -1238,9 +1232,6 @@ struct CookieInfo *Curl_cookie_init(struct Curl_easy *data,
c = calloc(1, sizeof(struct CookieInfo));
if(!c)
return NULL; /* failed to get memory */
- c->filename = strdup(file?file:"none"); /* copy the name just in case */
- if(!c->filename)
- goto fail; /* failed to get memory */
/*
* Initialize the next_expiration time to signal that we don't have enough
* information yet.
@@ -1394,7 +1385,6 @@ static struct Cookie *dup_cookie(struct Cookie *src)
CLONE(name);
CLONE(value);
CLONE(maxage);
- CLONE(version);
d->expires = src->expires;
d->tailmatch = src->tailmatch;
d->secure = src->secure;
@@ -1610,7 +1600,6 @@ void Curl_cookie_cleanup(struct CookieInfo *c)
{
if(c) {
unsigned int i;
- free(c->filename);
for(i = 0; i < COOKIE_HASH_SIZE; i++)
Curl_cookie_freelist(c->cookies[i]);
free(c); /* free the base struct as well */
diff --git a/lib/cookie.h b/lib/cookie.h
index 39bb08bc4..3a43bbf33 100644
--- a/lib/cookie.h
+++ b/lib/cookie.h
@@ -36,11 +36,7 @@ struct Cookie {
char *domain; /* domain = <this> */
curl_off_t expires; /* expires = <this> */
char *expirestr; /* the plain text version */
-
- /* RFC 2109 keywords. Version=1 means 2109-compliant cookie sending */
- char *version; /* Version = <value> */
char *maxage; /* Max-Age = <value> */
-
bool tailmatch; /* whether we do tail-matching of the domain name */
bool secure; /* whether the 'secure' keyword was used */
bool livecookie; /* updated from a server, not a stored file */
@@ -56,18 +52,16 @@ struct Cookie {
#define COOKIE_PREFIX__SECURE (1<<0)
#define COOKIE_PREFIX__HOST (1<<1)

-#define COOKIE_HASH_SIZE 256
+#define COOKIE_HASH_SIZE 63

struct CookieInfo {
/* linked list of cookies we know of */
struct Cookie *cookies[COOKIE_HASH_SIZE];
-
- char *filename; /* file we read from/write to */
- long numcookies; /* number of cookies in the "jar" */
+ curl_off_t next_expiration; /* the next time at which expiration happens */
+ int numcookies; /* number of cookies in the "jar" */
+ int lastct; /* last creation-time used in the jar */
bool running; /* state info, for cookie adding information */
bool newsession; /* new session, discard session cookies on load */
- int lastct; /* last creation-time used in the jar */
- curl_off_t next_expiration; /* the next time at which expiration happens */
};

/* This is the maximum line length we accept for a cookie line. RFC 2109
diff --git a/lib/easy.c b/lib/easy.c
index db03026c9..842d2a99a 100644
--- a/lib/easy.c
+++ b/lib/easy.c
@@ -911,9 +911,7 @@ struct Curl_easy *curl_easy_duphandle(struct Curl_easy *data)
if(data->cookies) {
/* If cookies are enabled in the parent handle, we enable them
in the clone as well! */
- outcurl->cookies = Curl_cookie_init(data,
- data->cookies->filename,
- outcurl->cookies,
+ outcurl->cookies = Curl_cookie_init(data, NULL, outcurl->cookies,
data->set.cookiesession);
if(!outcurl->cookies)
goto fail;

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