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| author | Mark H Weaver <mhw@netris.org> | 2021-03-13 03:41:14 -0500 |
|---|---|---|
| committer | Mark H Weaver <mhw@netris.org> | 2021-03-13 04:58:12 -0500 |
| commit | 74e2c0e00f58c8bf948f7dc7c5ae2876af910d5a (patch) | |
| tree | dba40ada3e2ae08d37d0c76c8650288b378444c4 /gnu/packages/patches/gnutls-CVE-2021-20232.patch | |
| parent | ca8fa11754563786ffbae8de8da21fe086e1f9d2 (diff) | |
| download | guix-74e2c0e00f58c8bf948f7dc7c5ae2876af910d5a.tar.gz guix-74e2c0e00f58c8bf948f7dc7c5ae2876af910d5a.zip | |
gnu: gnutls: Fix CVE-2021-20231 and CVE-2021-20232.
* gnu/packages/patches/gnutls-CVE-2021-20231.patch,
gnu/packages/patches/gnutls-CVE-2021-20232.patch: New files.
* gnu/local.mk (dist_patch_DATA): Add them.
* gnu/packages/tls.scm (gnutls)[replacement]: New field.
(gnutls/fixed): New variable.
(guile2.2-gnutls): Use package/inherit.
Diffstat (limited to 'gnu/packages/patches/gnutls-CVE-2021-20232.patch')
| -rw-r--r-- | gnu/packages/patches/gnutls-CVE-2021-20232.patch | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/gnu/packages/patches/gnutls-CVE-2021-20232.patch b/gnu/packages/patches/gnutls-CVE-2021-20232.patch new file mode 100644 index 0000000000..dc3a0be690 --- /dev/null +++ b/gnu/packages/patches/gnutls-CVE-2021-20232.patch @@ -0,0 +1,60 @@ +From 75a937d97f4fefc6f9b08e3791f151445f551cb3 Mon Sep 17 00:00:00 2001 +From: Daiki Ueno <ueno@gnu.org> +Date: Fri, 29 Jan 2021 14:06:23 +0100 +Subject: [PATCH 2/2] pre_shared_key: avoid use-after-free around realloc + +Signed-off-by: Daiki Ueno <ueno@gnu.org> +--- + lib/ext/pre_shared_key.c | 15 ++++++++++++--- + 1 file changed, 12 insertions(+), 3 deletions(-) + +diff --git a/lib/ext/pre_shared_key.c b/lib/ext/pre_shared_key.c +index a042c6488..380bf39ed 100644 +--- a/lib/ext/pre_shared_key.c ++++ b/lib/ext/pre_shared_key.c +@@ -267,7 +267,7 @@ client_send_params(gnutls_session_t session, + size_t spos; + gnutls_datum_t username = {NULL, 0}; + gnutls_datum_t user_key = {NULL, 0}, rkey = {NULL, 0}; +- gnutls_datum_t client_hello; ++ unsigned client_hello_len; + unsigned next_idx; + const mac_entry_st *prf_res = NULL; + const mac_entry_st *prf_psk = NULL; +@@ -428,8 +428,7 @@ client_send_params(gnutls_session_t session, + assert(extdata->length >= sizeof(mbuffer_st)); + assert(ext_offset >= (ssize_t)sizeof(mbuffer_st)); + ext_offset -= sizeof(mbuffer_st); +- client_hello.data = extdata->data+sizeof(mbuffer_st); +- client_hello.size = extdata->length-sizeof(mbuffer_st); ++ client_hello_len = extdata->length-sizeof(mbuffer_st); + + next_idx = 0; + +@@ -440,6 +439,11 @@ client_send_params(gnutls_session_t session, + } + + if (prf_res && rkey.size > 0) { ++ gnutls_datum_t client_hello; ++ ++ client_hello.data = extdata->data+sizeof(mbuffer_st); ++ client_hello.size = client_hello_len; ++ + ret = compute_psk_binder(session, prf_res, + binders_len, binders_pos, + ext_offset, &rkey, &client_hello, 1, +@@ -474,6 +478,11 @@ client_send_params(gnutls_session_t session, + } + + if (prf_psk && user_key.size > 0 && info) { ++ gnutls_datum_t client_hello; ++ ++ client_hello.data = extdata->data+sizeof(mbuffer_st); ++ client_hello.size = client_hello_len; ++ + ret = compute_psk_binder(session, prf_psk, + binders_len, binders_pos, + ext_offset, &user_key, &client_hello, 0, +-- +2.30.2 + |