CVE-2018-5391
Published: 14 August 2018
The Linux kernel, versions 3.9+, is vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause a denial of service condition by sending specially crafted IP fragments. Various vulnerabilities in IP fragmentation have been discovered and fixed over the years. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size.
From the Ubuntu security team
Juha-Matti Tilli discovered that the IP implementation in the Linux kernel performed algorithmically expensive operations in some situations when handling incoming packet fragments. A remote attacker could use this to cause a denial of service.
Priority
High
CVSS 3 base score: 7.5
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-32.35)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.4.0-133.159)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(3.13.0-155.205)
|
|
|
Patches: Introduced by c2a936600f78aea00d3312ea4b66a79a4619f9b4 Fixed by 7969e5c40dfd04799d4341f1b7cd266b6e47f227|local-2018-5391-fix Introduced by c2a936600f78aea00d3312ea4b66a79a4619f9b4 Fixed by 385114dec8a49b5e5945e77ba7de6356106713f4|local-2018-5391-fix Introduced by c2a936600f78aea00d3312ea4b66a79a4619f9b4 Fixed by fa0f527358bd900ef92f925878ed6bfbd51305cc|local-2018-5391-fix Introduced by c2a936600f78aea00d3312ea4b66a79a4619f9b4 Fixed by 70837ffe3085c9a91488b52ca13ac84424da1042|local-2018-5391-fix Introduced by c2a936600f78aea00d3312ea4b66a79a4619f9b4 Fixed by 5d407b071dc369c26a38398326ee2be53651cfe4|local-2018-5391-fix |
||
|
linux-aws Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1019.19)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.4.0-1065.75)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(4.4.0-1027.30)
|
|
|
linux-azure Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1021.21)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-1021.21~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(4.15.0-1023.24~14.04.1)
|
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.18.0-1004.4~18.04.1)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-1021.21)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-euclid Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.4.0-9029.31)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-flo Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(abandoned)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-gcp Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1017.18)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-1017.18~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-gke Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(end-of-life)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(end-of-life)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-grouper Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-32.35~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.18.0-11.12~18.04.1)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.15.0-32.35~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-kvm Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1019.19)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.4.0-1031.37)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [out of standard support])
|
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [out of standard support])
|
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [out of standard support])
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(4.4.0-133.159~14.04.1)
|
|
|
linux-maguro Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-mako Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(abandoned)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-manta Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-oem Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1015.18)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(was needs-triage now end-of-life)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1020.22)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.4.0-1094.102)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.19~rc4)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(4.4.0-1098.103)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
Notes
| Author | Note |
|---|---|
| tyhicks | CERT recommends reverting c2a936600f78aea00d3312ea4b66a79a4619f9b4 |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5391
- https://www.kb.cert.org/vuls/id/641765
- https://usn.ubuntu.com/usn/usn-3740-1
- https://usn.ubuntu.com/usn/usn-3740-2
- https://usn.ubuntu.com/usn/usn-3741-1
- https://usn.ubuntu.com/usn/usn-3741-2
- https://usn.ubuntu.com/usn/usn-3742-1
- https://usn.ubuntu.com/usn/usn-3742-2
- NVD
- Launchpad
- Debian