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author | Sundeep KOKKONDA <sundeep.kokkonda@gmail.com> | 2022-01-19 19:16:58 +0530 |
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committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2022-01-20 11:57:24 +0000 |
commit | 6ad7240c732dd63e74ac32588b92241030c194ae (patch) | |
tree | 6ad2f04a4acaf882f6d75b638b17d0b3a4dd268e /meta/recipes-core/glibc/glibc | |
parent | 83fa93b5fdb10a589bad2a9fc83552df8f1dbf28 (diff) | |
download | openembedded-core-contrib-6ad7240c732dd63e74ac32588b92241030c194ae.tar.gz |
glibc : Fix CVE-2022-23219
Upstream-Status: Backport [https://sourceware.org/git/?p=glibc.git;a=commit;h=226b46770c82899b555986583294b049c6ec9b40]
Upstream-Status: Backport [https://sourceware.org/git/?p=glibc.git;a=commit;h=ef972a4c50014a16132b5c75571cfb6b30bef136]
Signed-off-by: pgowda <pgowda.cve@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-core/glibc/glibc')
-rw-r--r-- | meta/recipes-core/glibc/glibc/0001-CVE-2022-23219.patch | 55 | ||||
-rw-r--r-- | meta/recipes-core/glibc/glibc/0002-CVE-2022-23219.patch | 89 |
2 files changed, 144 insertions, 0 deletions
diff --git a/meta/recipes-core/glibc/glibc/0001-CVE-2022-23219.patch b/meta/recipes-core/glibc/glibc/0001-CVE-2022-23219.patch new file mode 100644 index 0000000000..261c2909db --- /dev/null +++ b/meta/recipes-core/glibc/glibc/0001-CVE-2022-23219.patch @@ -0,0 +1,55 @@ +From 226b46770c82899b555986583294b049c6ec9b40 Mon Sep 17 00:00:00 2001 +From: Florian Weimer <fweimer@redhat.com> +Date: Mon, 17 Jan 2022 10:21:34 +0100 +Subject: [PATCH] CVE-2022-23219: Buffer overflow in sunrpc clnt_create for + "unix" (bug 22542) + +Processing an overlong pathname in the sunrpc clnt_create function +results in a stack-based buffer overflow. + +Upstream-Status: Backport [https://sourceware.org/git/?p=glibc.git;a=commit;h=226b46770c82899b555986583294b049c6ec9b40] +CVE: CVE-2022-23219 + +Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org> +Signed-off-by: Pgowda <pgowda.cve@gmail.com> +--- + NEWS | 4 +++- + sunrpc/clnt_gen.c | 10 +++++++--- + 2 files changed, 10 insertions(+), 4 deletions(-) + +diff --git a/NEWS b/NEWS +index ddd95a8329..38a9ddb2cf 100644 +--- a/NEWS ++++ b/NEWS +@@ -206,6 +206,10 @@ Security related changes: + CVE-2022-23218: Passing an overlong file name to the svcunix_create + legacy function could result in a stack-based buffer overflow. + ++ CVE-2022-23219: Passing an overlong file name to the clnt_create ++ legacy function could result in a stack-based buffer overflow when ++ using the "unix" protocol. Reported by Martin Sebor. ++ + The following bugs are resolved with this release: + + [4737] libc: fork is not async-signal-safe +diff --git a/sunrpc/clnt_gen.c b/sunrpc/clnt_gen.c +index 13ced8994e..b44357cd88 100644 +--- a/sunrpc/clnt_gen.c ++++ b/sunrpc/clnt_gen.c +@@ -57,9 +57,13 @@ clnt_create (const char *hostname, u_lon + + if (strcmp (proto, "unix") == 0) + { +- memset ((char *)&sun, 0, sizeof (sun)); +- sun.sun_family = AF_UNIX; +- strcpy (sun.sun_path, hostname); ++ if (__sockaddr_un_set (&sun, hostname) < 0) ++ { ++ struct rpc_createerr *ce = &get_rpc_createerr (); ++ ce->cf_stat = RPC_SYSTEMERROR; ++ ce->cf_error.re_errno = errno; ++ return NULL; ++ } + sock = RPC_ANYSOCK; + client = clntunix_create (&sun, prog, vers, &sock, 0, 0); + if (client == NULL) diff --git a/meta/recipes-core/glibc/glibc/0002-CVE-2022-23219.patch b/meta/recipes-core/glibc/glibc/0002-CVE-2022-23219.patch new file mode 100644 index 0000000000..6779e9afdf --- /dev/null +++ b/meta/recipes-core/glibc/glibc/0002-CVE-2022-23219.patch @@ -0,0 +1,89 @@ +From ef972a4c50014a16132b5c75571cfb6b30bef136 Mon Sep 17 00:00:00 2001 +From: Martin Sebor <msebor@redhat.com> +Date: Mon, 17 Jan 2022 10:21:34 +0100 +Subject: [PATCH] sunrpc: Test case for clnt_create "unix" buffer overflow (bug + 22542) + +Upstream-Status: Backport [https://sourceware.org/git/?p=glibc.git;a=commit;h=ef972a4c50014a16132b5c75571cfb6b30bef136] +CVE: CVE-2022-23219 + +Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org> +Signed-off-by: Pgowda <pgowda.cve@gmail.com> +--- + sunrpc/Makefile | 5 ++++- + sunrpc/tst-bug22542.c | 44 +++++++++++++++++++++++++++++++++++++++++++ + 2 files changed, 48 insertions(+), 1 deletion(-) + create mode 100644 sunrpc/tst-bug22542.c + +diff --git a/sunrpc/Makefile b/sunrpc/Makefile +index 9a31fe48b9..183ef3dc55 100644 +--- a/sunrpc/Makefile ++++ b/sunrpc/Makefile +@@ -65,7 +65,7 @@ shared-only-routines = $(routines) + endif + + tests = tst-xdrmem tst-xdrmem2 test-rpcent tst-udp-error tst-udp-timeout \ +- tst-udp-nonblocking tst-bug28768 ++ tst-udp-nonblocking tst-bug22542 tst-bug28768 + xtests := tst-getmyaddr + + ifeq ($(have-thread-library),yes) +@@ -110,6 +110,8 @@ $(objpfx)tst-udp-nonblocking: $(common-o + $(objpfx)tst-udp-garbage: \ + $(common-objpfx)linkobj/libc.so $(shared-thread-library) + ++$(objpfx)tst-bug22542: $(common-objpfx)linkobj/libc.so ++ + else # !have-GLIBC_2.31 + + routines = $(routines-for-nss) +diff --git a/sunrpc/tst-bug22542.c b/sunrpc/tst-bug22542.c +new file mode 100644 +index 0000000000..d6cd79787b +--- /dev/null ++++ b/sunrpc/tst-bug22542.c +@@ -0,0 +1,44 @@ ++/* Test to verify that overlong hostname is rejected by clnt_create ++ and doesn't cause a buffer overflow (bug 22542). ++ ++ Copyright (C) 2022 Free Software Foundation, Inc. ++ This file is part of the GNU C Library. ++ ++ The GNU C Library is free software; you can redistribute it and/or ++ modify it under the terms of the GNU Lesser General Public ++ License as published by the Free Software Foundation; either ++ version 2.1 of the License, or (at your option) any later version. ++ ++ The GNU C Library is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should have received a copy of the GNU Lesser General Public ++ License along with the GNU C Library; if not, see ++ <http://www.gnu.org/licenses/>. */ ++ ++#include <errno.h> ++#include <rpc/clnt.h> ++#include <string.h> ++#include <support/check.h> ++#include <sys/socket.h> ++#include <sys/un.h> ++ ++static int ++do_test (void) ++{ ++ /* Create an arbitrary hostname that's longer than fits in sun_path. */ ++ char name [sizeof ((struct sockaddr_un*)0)->sun_path * 2]; ++ memset (name, 'x', sizeof name - 1); ++ name [sizeof name - 1] = '\0'; ++ ++ errno = 0; ++ CLIENT *clnt = clnt_create (name, 0, 0, "unix"); ++ ++ TEST_VERIFY (clnt == NULL); ++ TEST_COMPARE (errno, EINVAL); ++ return 0; ++} ++ ++#include <support/test-driver.c> |