The Linux kernel before version 4.11 is vulnerable to a NULL pointer dereference in fs/cifs/cifsencrypt.c:setup_ntlmv2_rsp() that allows an attacker controlling a CIFS server to kernel panic a client that has this server mounted, because an empty TargetInfo field in an NTLMSSP setup negotiation response is mishandled during session recovery.
[
{
"product": "Linux kernel 4.11",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "Linux kernel 4.11"
}
]
}
]
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cabfb3680f78981d26c078a26e5c748531257ebb
www.securityfocus.com/bid/103378
bugzilla.redhat.com/show_bug.cgi?id=1539599
github.com/torvalds/linux/commit/cabfb3680f78981d26c078a26e5c748531257ebb
lists.debian.org/debian-lts-announce/2018/07/msg00015.html
lists.debian.org/debian-lts-announce/2018/07/msg00016.html
patchwork.kernel.org/patch/10187633/
usn.ubuntu.com/3880-1/
usn.ubuntu.com/3880-2/
www.debian.org/security/2018/dsa-4187
www.debian.org/security/2018/dsa-4188