From: Khairul Rohaizzat Jamaluddin <khairul.rohaizzat.jamalud...@intel.com>
CVE: CVE-2021-22897 Signed-off-by: Khairul Rohaizzat Jamaluddin <khairul.rohaizzat.jamalud...@intel.com> Signed-off-by: Anuj Mittal <anuj.mit...@intel.com> --- .../curl/curl/CVE-2021-22897.patch | 72 +++++++++++++++++++ meta/recipes-support/curl/curl_7.75.0.bb | 1 + 2 files changed, 73 insertions(+) create mode 100644 meta/recipes-support/curl/curl/CVE-2021-22897.patch diff --git a/meta/recipes-support/curl/curl/CVE-2021-22897.patch b/meta/recipes-support/curl/curl/CVE-2021-22897.patch new file mode 100644 index 0000000000..fcd11b7674 --- /dev/null +++ b/meta/recipes-support/curl/curl/CVE-2021-22897.patch @@ -0,0 +1,72 @@ +From bbb71507b7bab52002f9b1e0880bed6a32834511 Mon Sep 17 00:00:00 2001 +From: Daniel Stenberg <dan...@haxx.se> +Date: Fri, 23 Apr 2021 10:54:10 +0200 +Subject: [PATCH] schannel: don't use static to store selected ciphers + +CVE-2021-22897 + +Bug: https://curl.se/docs/CVE-2021-22897.html + +Upstream-Status: Backport +[https://github.com/curl/curl/commit/bbb71507b7bab52002f9b1e0880bed6a32834511] + +CVE: CVE-2021-22897 + +Signed-off-by: Daniel Stenberg <dan...@haxx.se> +Signed-off-by: Khairul Rohaizzat Jamaluddin <khairul.rohaizzat.jamalud...@intel.com> +--- + lib/vtls/schannel.c | 9 +++++---- + lib/vtls/schannel.h | 3 +++ + 2 files changed, 8 insertions(+), 4 deletions(-) + +diff --git a/lib/vtls/schannel.c b/lib/vtls/schannel.c +index 8c25ac5dd5a5..dba7072273a9 100644 +--- a/lib/vtls/schannel.c ++++ b/lib/vtls/schannel.c +@@ -328,12 +328,12 @@ get_alg_id_by_name(char *name) + } + + static CURLcode +-set_ssl_ciphers(SCHANNEL_CRED *schannel_cred, char *ciphers) ++set_ssl_ciphers(SCHANNEL_CRED *schannel_cred, char *ciphers, ++ int *algIds) + { + char *startCur = ciphers; + int algCount = 0; +- static ALG_ID algIds[45]; /*There are 45 listed in the MS headers*/ +- while(startCur && (0 != *startCur) && (algCount < 45)) { ++ while(startCur && (0 != *startCur) && (algCount < NUMOF_CIPHERS)) { + long alg = strtol(startCur, 0, 0); + if(!alg) + alg = get_alg_id_by_name(startCur); +@@ -593,7 +593,8 @@ schannel_connect_step1(struct Curl_easy *data, struct connectdata *conn, + } + + if(SSL_CONN_CONFIG(cipher_list)) { +- result = set_ssl_ciphers(&schannel_cred, SSL_CONN_CONFIG(cipher_list)); ++ result = set_ssl_ciphers(&schannel_cred, SSL_CONN_CONFIG(cipher_list), ++ BACKEND->algIds); + if(CURLE_OK != result) { + failf(data, "Unable to set ciphers to passed via SSL_CONN_CONFIG"); + return result; +diff --git a/lib/vtls/schannel.h b/lib/vtls/schannel.h +index 2952caa1a5a1..77853aa30f96 100644 +--- a/lib/vtls/schannel.h ++++ b/lib/vtls/schannel.h +@@ -71,6 +71,8 @@ CURLcode Curl_verify_certificate(struct Curl_easy *data, + #endif + #endif + ++#define NUMOF_CIPHERS 45 /* There are 45 listed in the MS headers */ ++ + struct Curl_schannel_cred { + CredHandle cred_handle; + TimeStamp time_stamp; +@@ -102,6 +104,7 @@ struct ssl_backend_data { + #ifdef HAS_MANUAL_VERIFY_API + bool use_manual_cred_validation; /* true if manual cred validation is used */ + #endif ++ ALG_ID algIds[NUMOF_CIPHERS]; + }; + #endif /* EXPOSE_SCHANNEL_INTERNAL_STRUCTS */ + diff --git a/meta/recipes-support/curl/curl_7.75.0.bb b/meta/recipes-support/curl/curl_7.75.0.bb index 433037f564..42be2eb0b5 100644 --- a/meta/recipes-support/curl/curl_7.75.0.bb +++ b/meta/recipes-support/curl/curl_7.75.0.bb @@ -16,6 +16,7 @@ SRC_URI = "https://curl.haxx.se/download/curl-${PV}.tar.bz2 \ file://vtls-fix-addsessionid.patch \ file://vtls-fix-warning.patch \ file://CVE-2021-22898.patch \ + file://CVE-2021-22897.patch \ " SRC_URI[sha256sum] = "50552d4501c178e4cc68baaecc487f466a3d6d19bbf4e50a01869effb316d026" -- 2.31.1
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