diff options
Diffstat (limited to 'meta/recipes-support/gnutls/gnutls/better-fix-for-double-free-CVE-2015-3308.patch')
-rw-r--r-- | meta/recipes-support/gnutls/gnutls/better-fix-for-double-free-CVE-2015-3308.patch | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/meta/recipes-support/gnutls/gnutls/better-fix-for-double-free-CVE-2015-3308.patch b/meta/recipes-support/gnutls/gnutls/better-fix-for-double-free-CVE-2015-3308.patch new file mode 100644 index 0000000000..8824729d2f --- /dev/null +++ b/meta/recipes-support/gnutls/gnutls/better-fix-for-double-free-CVE-2015-3308.patch | |||
@@ -0,0 +1,65 @@ | |||
1 | From 053ae65403216acdb0a4e78b25ad66ee9f444f02 Mon Sep 17 00:00:00 2001 | ||
2 | From: Nikos Mavrogiannopoulos <nmav@gnutls.org> | ||
3 | Date: Sat, 28 Mar 2015 22:41:03 +0100 | ||
4 | Subject: [PATCH] Better fix for the double free in dist point parsing | ||
5 | |||
6 | Fixes CVE-2015-3308 | ||
7 | Upstream-Status: Backport | ||
8 | |||
9 | Signed-off-by: Sona Sarmadi <sona.sarmadi@enea.com> | ||
10 | --- | ||
11 | lib/x509/x509_ext.c | 10 ++++++---- | ||
12 | 1 file changed, 6 insertions(+), 4 deletions(-) | ||
13 | |||
14 | diff --git a/lib/x509/x509_ext.c b/lib/x509/x509_ext.c | ||
15 | index 2e69ed0..f974b02 100644 | ||
16 | --- a/lib/x509/x509_ext.c | ||
17 | +++ b/lib/x509/x509_ext.c | ||
18 | @@ -2287,7 +2287,7 @@ int gnutls_x509_ext_import_crl_dist_points(const gnutls_datum_t * ext, | ||
19 | int len, ret; | ||
20 | uint8_t reasons[2]; | ||
21 | unsigned i, type, rflags, j; | ||
22 | - gnutls_datum_t san; | ||
23 | + gnutls_datum_t san = {NULL, 0}; | ||
24 | |||
25 | result = asn1_create_element | ||
26 | (_gnutls_get_pkix(), "PKIX1.CRLDistributionPoints", &c2); | ||
27 | @@ -2310,9 +2310,6 @@ int gnutls_x509_ext_import_crl_dist_points(const gnutls_datum_t * ext, | ||
28 | |||
29 | i = 0; | ||
30 | do { | ||
31 | - san.data = NULL; | ||
32 | - san.size = 0; | ||
33 | - | ||
34 | snprintf(name, sizeof(name), "?%u.reasons", (unsigned)i + 1); | ||
35 | |||
36 | len = sizeof(reasons); | ||
37 | @@ -2337,6 +2334,9 @@ int gnutls_x509_ext_import_crl_dist_points(const gnutls_datum_t * ext, | ||
38 | |||
39 | j = 0; | ||
40 | do { | ||
41 | + san.data = NULL; | ||
42 | + san.size = 0; | ||
43 | + | ||
44 | ret = | ||
45 | _gnutls_parse_general_name2(c2, name, j, &san, | ||
46 | &type, 0); | ||
47 | @@ -2351,6 +2351,7 @@ int gnutls_x509_ext_import_crl_dist_points(const gnutls_datum_t * ext, | ||
48 | ret = crl_dist_points_set(cdp, type, &san, rflags); | ||
49 | if (ret < 0) | ||
50 | break; | ||
51 | + san.data = NULL; /* it is now in cdp */ | ||
52 | |||
53 | j++; | ||
54 | } while (ret >= 0); | ||
55 | @@ -2360,6 +2361,7 @@ int gnutls_x509_ext_import_crl_dist_points(const gnutls_datum_t * ext, | ||
56 | |||
57 | if (ret < 0 && ret != GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE) { | ||
58 | gnutls_assert(); | ||
59 | + gnutls_free(san.data); | ||
60 | goto cleanup; | ||
61 | } | ||
62 | |||
63 | -- | ||
64 | 1.9.1 | ||
65 | |||