diff options
Diffstat (limited to 'meta-oe/recipes-connectivity/hostapd/hostapd/CVE-2021-30004.patch')
| -rw-r--r-- | meta-oe/recipes-connectivity/hostapd/hostapd/CVE-2021-30004.patch | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/meta-oe/recipes-connectivity/hostapd/hostapd/CVE-2021-30004.patch b/meta-oe/recipes-connectivity/hostapd/hostapd/CVE-2021-30004.patch deleted file mode 100644 index e2540fc26b..0000000000 --- a/meta-oe/recipes-connectivity/hostapd/hostapd/CVE-2021-30004.patch +++ /dev/null @@ -1,123 +0,0 @@ -From a0541334a6394f8237a4393b7372693cd7e96f15 Mon Sep 17 00:00:00 2001 -From: Jouni Malinen <j@w1.fi> -Date: Sat, 13 Mar 2021 18:19:31 +0200 -Subject: [PATCH] ASN.1: Validate DigestAlgorithmIdentifier parameters - -The supported hash algorithms do not use AlgorithmIdentifier parameters. -However, there are implementations that include NULL parameters in -addition to ones that omit the parameters. Previous implementation did -not check the parameters value at all which supported both these cases, -but did not reject any other unexpected information. - -Use strict validation of digest algorithm parameters and reject any -unexpected value when validating a signature. This is needed to prevent -potential forging attacks. - -Signed-off-by: Jouni Malinen <j@w1.fi> - -Upstream-Status: Backport -CVE: CVE-2021-30004 - -Reference to upstream patch: -[https://w1.fi/cgit/hostap/commit/?id=a0541334a6394f8237a4393b7372693cd7e96f15] - -Signed-off-by: Stefan Ghinea <stefan.ghinea@windriver.com> ---- - src/tls/pkcs1.c | 21 +++++++++++++++++++++ - src/tls/x509v3.c | 20 ++++++++++++++++++++ - 2 files changed, 41 insertions(+) - -diff --git a/src/tls/pkcs1.c b/src/tls/pkcs1.c -index 141ac50..e09db07 100644 ---- a/src/tls/pkcs1.c -+++ b/src/tls/pkcs1.c -@@ -240,6 +240,8 @@ int pkcs1_v15_sig_ver(struct crypto_public_key *pk, - os_free(decrypted); - return -1; - } -+ wpa_hexdump(MSG_MSGDUMP, "PKCS #1: DigestInfo", -+ hdr.payload, hdr.length); - - pos = hdr.payload; - end = pos + hdr.length; -@@ -261,6 +263,8 @@ int pkcs1_v15_sig_ver(struct crypto_public_key *pk, - os_free(decrypted); - return -1; - } -+ wpa_hexdump(MSG_MSGDUMP, "PKCS #1: DigestAlgorithmIdentifier", -+ hdr.payload, hdr.length); - da_end = hdr.payload + hdr.length; - - if (asn1_get_oid(hdr.payload, hdr.length, &oid, &next)) { -@@ -269,6 +273,23 @@ int pkcs1_v15_sig_ver(struct crypto_public_key *pk, - os_free(decrypted); - return -1; - } -+ wpa_hexdump(MSG_MSGDUMP, "PKCS #1: Digest algorithm parameters", -+ next, da_end - next); -+ -+ /* -+ * RFC 5754: The correct encoding for the SHA2 algorithms would be to -+ * omit the parameters, but there are implementation that encode these -+ * as a NULL element. Allow these two cases and reject anything else. -+ */ -+ if (da_end > next && -+ (asn1_get_next(next, da_end - next, &hdr) < 0 || -+ !asn1_is_null(&hdr) || -+ hdr.payload + hdr.length != da_end)) { -+ wpa_printf(MSG_DEBUG, -+ "PKCS #1: Unexpected digest algorithm parameters"); -+ os_free(decrypted); -+ return -1; -+ } - - if (!asn1_oid_equal(&oid, hash_alg)) { - char txt[100], txt2[100]; -diff --git a/src/tls/x509v3.c b/src/tls/x509v3.c -index 1bd5aa0..bf2289f 100644 ---- a/src/tls/x509v3.c -+++ b/src/tls/x509v3.c -@@ -1834,6 +1834,7 @@ int x509_check_signature(struct x509_certificate *issuer, - os_free(data); - return -1; - } -+ wpa_hexdump(MSG_MSGDUMP, "X509: DigestInfo", hdr.payload, hdr.length); - - pos = hdr.payload; - end = pos + hdr.length; -@@ -1855,6 +1856,8 @@ int x509_check_signature(struct x509_certificate *issuer, - os_free(data); - return -1; - } -+ wpa_hexdump(MSG_MSGDUMP, "X509: DigestAlgorithmIdentifier", -+ hdr.payload, hdr.length); - da_end = hdr.payload + hdr.length; - - if (asn1_get_oid(hdr.payload, hdr.length, &oid, &next)) { -@@ -1862,6 +1865,23 @@ int x509_check_signature(struct x509_certificate *issuer, - os_free(data); - return -1; - } -+ wpa_hexdump(MSG_MSGDUMP, "X509: Digest algorithm parameters", -+ next, da_end - next); -+ -+ /* -+ * RFC 5754: The correct encoding for the SHA2 algorithms would be to -+ * omit the parameters, but there are implementation that encode these -+ * as a NULL element. Allow these two cases and reject anything else. -+ */ -+ if (da_end > next && -+ (asn1_get_next(next, da_end - next, &hdr) < 0 || -+ !asn1_is_null(&hdr) || -+ hdr.payload + hdr.length != da_end)) { -+ wpa_printf(MSG_DEBUG, -+ "X509: Unexpected digest algorithm parameters"); -+ os_free(data); -+ return -1; -+ } - - if (x509_sha1_oid(&oid)) { - if (signature->oid.oid[6] != 5 /* sha-1WithRSAEncryption */) { --- -2.17.1 - |