CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
79.8%
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.
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
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
79.8%