diff options
Diffstat (limited to 'meta/recipes-bsp/u-boot/files/0008-CVE-2019-14195.patch')
| -rw-r--r-- | meta/recipes-bsp/u-boot/files/0008-CVE-2019-14195.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/meta/recipes-bsp/u-boot/files/0008-CVE-2019-14195.patch b/meta/recipes-bsp/u-boot/files/0008-CVE-2019-14195.patch new file mode 100644 index 0000000000..bf9fb0ef52 --- /dev/null +++ b/meta/recipes-bsp/u-boot/files/0008-CVE-2019-14195.patch @@ -0,0 +1,42 @@ +From 2236973b8a173ff54ae1ebf8ec2300928e69bd1b Mon Sep 17 00:00:00 2001 +From: "liucheng (G)" <liucheng32@huawei.com> +Date: Thu, 29 Aug 2019 13:47:54 +0000 +Subject: [PATCH 8/9] CVE-2019-14195: nfs: fix unbounded memcpy with + unvalidated length at nfs_readlink_reply +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +This patch adds a check to rpc_pkt.u.reply.data at nfs_readlink_reply. + +Signed-off-by: Cheng Liu <liucheng32@huawei.com> +Reported-by: FermÃn Serna <fermin@semmle.com> +Acked-by: Joe Hershberger <joe.hershberger@ni.com> + +Upstream-Status: Backport[http://git.denx.de/?p=u-boot.git;a=commit; + h=cf3a4f1e86ecdd24f87b615051b49d8e1968c230] + +CVE: CVE-2019-14195 + +Signed-off-by: Meng Li <Meng.Li@windriver.com> +--- + net/nfs.c | 3 +++ + 1 file changed, 3 insertions(+) + +diff --git a/net/nfs.c b/net/nfs.c +index 11941fad1a..915acd95cf 100644 +--- a/net/nfs.c ++++ b/net/nfs.c +@@ -634,6 +634,9 @@ static int nfs_readlink_reply(uchar *pkt, unsigned len) + /* new path length */ + rlen = ntohl(rpc_pkt.u.reply.data[1 + nfsv3_data_offset]); + ++ if (((uchar *)&(rpc_pkt.u.reply.data[0]) - (uchar *)(&rpc_pkt) + rlen) > len) ++ return -NFS_RPC_DROP; ++ + if (*((char *)&(rpc_pkt.u.reply.data[2 + nfsv3_data_offset])) != '/') { + int pathlen; + +-- +2.17.1 + |