diff options
Diffstat (limited to 'meta/recipes-core/glibc/glibc/0001-CVE-2022-23219.patch')
| -rw-r--r-- | meta/recipes-core/glibc/glibc/0001-CVE-2022-23219.patch | 55 |
1 files changed, 55 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) |