CVE-2016-4998
Published: 24 June 2016
The IPT_SO_SET_REPLACE setsockopt implementation in the netfilter subsystem in the Linux kernel before 4.6 allows local users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from kernel heap memory by leveraging in-container root access to provide a crafted offset value that leads to crossing a ruleset blob boundary.
From the Ubuntu Security Team
Jesse Hertz and Tim Newsham discovered that the Linux netfilter implementation did not correctly perform validation when handling IPT_SO_SET_REPLACE events. A local unprivileged attacker could use this to cause a denial of service (system crash) or obtain potentially sensitive information from kernel memory.
Notes
Author | Note |
---|---|
jdstrand | android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.10 and earlier preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support |
seth-arnold | Can be mitigated against by a sysctl to disable userns support |
Priority
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
precise |
Ignored
(was needed ESM criteria)
|
trusty |
Released
(3.13.0-91.138)
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Released
(4.2.0-41.48)
|
|
xenial |
Released
(4.4.0-28.47)
|
|
yakkety |
Not vulnerable
(4.4.0-28.47)
|
|
zesty |
Not vulnerable
(4.8.0-22.24)
|
|
Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
linux-armadaxp Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was needed)
|
trusty |
Does not exist
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-aws Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Not vulnerable
(4.4.0-1002.2)
|
|
upstream |
Released
(4.7~rc1)
|
|
xenial |
Not vulnerable
(4.4.0-1001.10)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-flo Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Ignored
(reached end-of-life)
|
|
xenial |
Ignored
(abandoned)
|
|
yakkety |
Ignored
(abandoned)
|
|
zesty |
Does not exist
|
|
linux-gke Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.7~rc1)
|
|
xenial |
Not vulnerable
(4.4.0-1003.3)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Ignored
(reached end-of-life)
|
|
xenial |
Ignored
(abandoned)
|
|
yakkety |
Ignored
(abandoned)
|
|
zesty |
Ignored
(abandoned)
|
|
linux-grouper Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-hwe Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.7~rc1)
|
|
xenial |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.7~rc1)
|
|
xenial |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was ignored [abandoned])
|
trusty |
Does not exist
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was ignored [abandoned])
|
trusty |
Does not exist
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was ignored [abandoned])
|
trusty |
Does not exist
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was ignored [end-of-life])
|
trusty |
Does not exist
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-lts-raring Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was ignored [end-of-life])
|
trusty |
Does not exist
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was ignored [end-of-life])
|
trusty |
Does not exist
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-lts-trusty Launchpad, Ubuntu, Debian |
precise |
Released
(3.13.0-91.138~precise1)
|
trusty |
Does not exist
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was released [3.16.0-76.98~14.04.1])
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was released [3.19.0-64.72~14.04.1])
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was released [4.2.0-41.48~14.04.1])
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Released
(4.4.0-28.47~14.04.1)
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-maguro Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-mako Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Ignored
(reached end-of-life)
|
|
xenial |
Ignored
(abandoned)
|
|
yakkety |
Ignored
(abandoned)
|
|
zesty |
Does not exist
|
|
linux-manta Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Ignored
(reached end-of-life)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was ignored [abandoned])
|
trusty |
Does not exist
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Released
(4.2.0-1033.43)
|
|
xenial |
Released
(4.4.0-1016.22)
|
|
yakkety |
Not vulnerable
(4.4.0-1016.22)
|
|
zesty |
Not vulnerable
(4.8.0-1013.15)
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Released
(4.4.0-1019.22)
|
|
yakkety |
Not vulnerable
(4.4.0-1019.22)
|
|
zesty |
Not vulnerable
(4.4.0-1029.32)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was needed)
|
trusty |
Does not exist
|
|
upstream |
Released
(4.7~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.1 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4998
- https://marc.info/?l=oss-security&m=146679591706851&w=2
- https://ubuntu.com/security/notices/USN-3016-1
- https://ubuntu.com/security/notices/USN-3016-2
- https://ubuntu.com/security/notices/USN-3017-1
- https://ubuntu.com/security/notices/USN-3017-3
- https://ubuntu.com/security/notices/USN-3016-3
- https://ubuntu.com/security/notices/USN-3016-4
- https://ubuntu.com/security/notices/USN-3017-2
- https://ubuntu.com/security/notices/USN-3020-1
- https://ubuntu.com/security/notices/USN-3018-2
- https://ubuntu.com/security/notices/USN-3018-1
- https://ubuntu.com/security/notices/USN-3019-1
- NVD
- Launchpad
- Debian