CVE-2017-17862
Published: 27 December 2017
kernel/bpf/verifier.c in the Linux kernel through 4.14.8 ignores unreachable code, even though it would still be processed by JIT compilers. This behavior, also considered an improper branch-pruning logic issue, could possibly be used by local users for denial of service.
From the Ubuntu Security Team
Alexei Starovoitov discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel contained a branch-pruning logic issue around unreachable code. A local attacker could use this to cause a denial of service.
Notes
| Author | Note |
|---|---|
| sbeattie | incomplete fix resulted in bug 1763454 |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
upstream |
Released
(4.15~rc1)
|
| bionic |
Not vulnerable
(4.13.0-25.29)
|
|
| artful |
Released
(4.13.0-25.29)
|
|
| trusty |
Not vulnerable
|
|
| xenial |
Released
(4.4.0-119.143)
|
|
| zesty |
Ignored
(end of life)
|
|
|
Patches: Introduced by 17a5267067f3c372fec9ffb798d6eaba6b5e6a4c |
||
|
linux-armadaxp Launchpad, Ubuntu, Debian |
upstream |
Released
(4.15~rc1)
|
| bionic |
Does not exist
|
|
| artful |
Does not exist
|
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
| This package is not directly supported by the Ubuntu Security Team | ||
|
linux-flo Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| artful |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Ignored
(abandoned)
|
|
| zesty |
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
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-azure Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Not vulnerable
(4.15.0-1002.2)
|
|
| trusty |
Not vulnerable
(4.15.0-1023.24~14.04.1)
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Released
(4.13.0-1005.7)
|
|
| zesty |
Does not exist
|
|
|
linux-euclid Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Ignored
(was needed ESM criteria)
|
|
| zesty |
Does not exist
|
|
|
linux-aws Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Not vulnerable
(4.15.0-1001.1)
|
|
| trusty |
Released
(4.4.0-1016.16)
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Released
(4.4.0-1054.63)
|
|
| zesty |
Does not exist
|
|
|
linux-gcp Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Not vulnerable
(4.15.0-1001.1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Released
(4.13.0-1006.9)
|
|
| zesty |
Does not exist
|
|
|
linux-gke Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Ignored
(end of standard support, was needed)
|
|
| zesty |
Does not exist
|
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Not vulnerable
|
|
| zesty |
Not vulnerable
|
|
|
linux-grouper Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Not vulnerable
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Released
(4.13.0-26.29~16.04.2)
|
|
| zesty |
Does not exist
|
|
|
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
(4.15~rc1)
|
|
| xenial |
Released
(4.13.0-26.29~16.04.2)
|
|
| zesty |
Does not exist
|
|
|
linux-kvm Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Not vulnerable
(4.15.0-1002.2)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Released
(4.4.0-1020.25)
|
|
| zesty |
Does not exist
|
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
| This package is not directly supported by the Ubuntu Security Team | ||
|
linux-lts-raring Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
| This package is not directly supported by the Ubuntu Security Team | ||
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
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
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
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
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
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
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Released
(4.4.0-119.143~14.04.1)
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
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
(4.15~rc1)
|
|
| xenial |
Ignored
(abandoned)
|
|
| zesty |
Does not exist
|
|
|
linux-manta Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-oem Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Not vulnerable
(4.15.0-1002.3)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Released
(4.13.0-1015.16)
|
|
| zesty |
Does not exist
|
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
artful |
Released
(4.13.0-1011.11)
|
| bionic |
Not vulnerable
(4.15.0-1006.7)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Released
(4.4.0-1086.94)
|
|
| zesty |
Ignored
(end of life)
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
artful |
Released
(4.4.0-1088.93)
|
| bionic |
Not vulnerable
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Released
(4.4.0-1088.93)
|
|
| zesty |
Ignored
(end of life)
|
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17862
- http://www.openwall.com/lists/oss-security/2017/12/24/1
- https://www.spinics.net/lists/stable/msg206984.html
- https://ubuntu.com/security/notices/USN-3523-1
- https://ubuntu.com/security/notices/USN-3523-2
- https://ubuntu.com/security/notices/USN-3523-3
- https://ubuntu.com/security/notices/USN-3619-1
- https://ubuntu.com/security/notices/USN-3619-2
- NVD
- Launchpad
- Debian