CVE-2018-8822
Published: 20 March 2018
Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c in the Linux kernel through 4.15.11, and in drivers/staging/ncpfs/ncplib_kernel.c in the Linux kernel 4.16-rc through 4.16-rc6, could be exploited by malicious NCPFS servers to crash the kernel or execute code.
From the Ubuntu Security Team
Silvio Cesare discovered a buffer overwrite existed in the NCPFS implementation in the Linux kernel. A remote attacker controlling a malicious NCPFS server could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
Priority
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
upstream |
Released
(4.16~rc7)
|
bionic |
Not vulnerable
(4.15.0-15.16)
|
|
artful |
Released
(4.13.0-43.48)
|
|
trusty |
Released
(3.13.0-149.199)
|
|
xenial |
Released
(4.4.0-127.153)
|
|
Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
linux-goldfish Launchpad, Ubuntu, Debian |
upstream |
Released
(4.16~rc7)
|
bionic |
Does not exist
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
xenial |
Ignored
(end of life, was needed)
|
|
linux-grouper Launchpad, Ubuntu, Debian |
upstream |
Released
(4.16~rc7)
|
bionic |
Does not exist
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
xenial |
Does not exist
|
|
linux-flo Launchpad, Ubuntu, Debian |
upstream |
Released
(4.16~rc7)
|
bionic |
Does not exist
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
xenial |
Ignored
(abandoned)
|
|
linux-aws Launchpad, Ubuntu, Debian |
upstream |
Released
(4.16~rc7)
|
bionic |
Not vulnerable
(4.15.0-1003.3)
|
|
artful |
Does not exist
|
|
trusty |
Released
(4.4.0-1022.22)
|
|
xenial |
Released
(4.4.0-1060.69)
|
|
linux-hwe Launchpad, Ubuntu, Debian |
upstream |
Released
(4.16~rc7)
|
bionic |
Not vulnerable
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Released
(4.13.0-43.48~16.04.1)
|
|
linux-gke Launchpad, Ubuntu, Debian |
upstream |
Released
(4.16~rc7)
|
bionic |
Does not exist
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Ignored
(end of standard support, was needed)
|
|
linux-azure Launchpad, Ubuntu, Debian |
upstream |
Released
(4.16~rc7)
|
bionic |
Not vulnerable
(4.15.0-1004.4)
|
|
artful |
Does not exist
|
|
trusty |
Not vulnerable
(4.15.0-1023.24~14.04.1)
|
|
xenial |
Released
(4.13.0-1018.21)
|
|
linux-gcp Launchpad, Ubuntu, Debian |
upstream |
Released
(4.16~rc7)
|
bionic |
Not vulnerable
(4.15.0-1003.3)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Released
(4.13.0-1017.21)
|
|
linux-kvm Launchpad, Ubuntu, Debian |
upstream |
Released
(4.16~rc7)
|
bionic |
Not vulnerable
(4.15.0-1004.4)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Released
(4.4.0-1026.31)
|
|
linux-euclid Launchpad, Ubuntu, Debian |
upstream |
Released
(4.16~rc7)
|
bionic |
Does not exist
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Ignored
(was needs-triage ESM criteria)
|
|
linux-oem Launchpad, Ubuntu, Debian |
upstream |
Released
(4.16~rc7)
|
bionic |
Not vulnerable
(4.15.0-1002.3)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Released
(4.13.0-1028.31)
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Released
(4.18.0-8.9~18.04.1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.16~rc7)
|
|
xenial |
Released
(4.13.0-43.48~16.04.1)
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.16~rc7)
|
|
xenial |
Does not exist
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
upstream |
Released
(4.16~rc7)
|
|
xenial |
Does not exist
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
trusty |
Ignored
(end of life, was needs-triage)
|
|
upstream |
Released
(4.16~rc7)
|
|
xenial |
Does not exist
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
upstream |
Released
(4.16~rc7)
|
|
xenial |
Does not exist
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
trusty |
Released
(4.4.0-127.153~14.04.1)
|
|
upstream |
Released
(4.16~rc7)
|
|
xenial |
Does not exist
|
|
linux-maguro Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.16~rc7)
|
|
xenial |
Does not exist
|
|
linux-mako Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.16~rc7)
|
|
xenial |
Ignored
(abandoned)
|
|
linux-manta Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.16~rc7)
|
|
xenial |
Does not exist
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
artful |
Released
(4.13.0-1020.21)
|
bionic |
Not vulnerable
(4.15.0-1006.7)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.16~rc7)
|
|
xenial |
Released
(4.4.0-1090.98)
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
artful |
Released
(4.4.0-1093.98)
|
bionic |
Not vulnerable
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.16~rc7)
|
|
xenial |
Released
(4.4.0-1093.98)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.8 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8822
- https://www.mail-archive.com/netdev@vger.kernel.org/msg223373.html
- https://ubuntu.com/security/notices/USN-3653-1
- https://ubuntu.com/security/notices/USN-3653-2
- https://ubuntu.com/security/notices/USN-3654-1
- https://ubuntu.com/security/notices/USN-3654-2
- https://ubuntu.com/security/notices/USN-3655-1
- https://ubuntu.com/security/notices/USN-3655-2
- https://ubuntu.com/security/notices/USN-3656-1
- https://ubuntu.com/security/notices/USN-3657-1
- NVD
- Launchpad
- Debian