CVE-2018-15471
Published: 17 August 2018
An issue was discovered in xenvif_set_hash_mapping in drivers/net/xen-netback/hash.c in the Linux kernel through 4.18.1, as used in Xen through 4.11.x and other products. The Linux netback driver allows frontends to control mapping of requests to request queues. When processing a request to set or change this mapping, some input validation (e.g., for an integer overflow) was missing or flawed, leading to OOB access in hash handling. A malicious or buggy frontend may cause the (usually privileged) backend to make out of bounds memory accesses, potentially resulting in one or more of privilege escalation, Denial of Service (DoS), or information leaks.
From the Ubuntu Security Team
Felix Wilhelm discovered that the Xen netback driver in the Linux kernel did not properly perform input validation in some situations. An attacker 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 |
bionic |
Released
(4.15.0-39.42)
|
cosmic |
Released
(4.18.0-11.12)
|
|
trusty |
Not vulnerable
(3.11.0-12.19)
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Not vulnerable
(4.2.0-16.19)
|
|
Patches: Introduced by 40d8abdee806d496a60ee607a6d01b1cd7fabaf0 |
||
linux-flo Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Ignored
(abandoned)
|
|
linux-aws Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1027.27)
|
cosmic |
Released
(4.18.0-1004.5)
|
|
trusty |
Not vulnerable
(4.4.0-1002.2)
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Not vulnerable
(4.4.0-1001.10)
|
|
linux-aws-hwe Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Not vulnerable
(4.15.0-1030.31~16.04.1)
|
|
linux-oracle Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1007.9)
|
cosmic |
Not vulnerable
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Not vulnerable
(4.15.0-1007.9~16.04.1)
|
|
linux-azure Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1031.32)
|
cosmic |
Released
(4.18.0-1006.6)
|
|
trusty |
Released
(4.15.0-1031.32~14.04.1)
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Released
(4.15.0-1031.32~16.04.1)
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.18.0-1006.6~18.04.1)
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Released
(4.18.0-1006.6~16.04.2)
|
|
linux-euclid Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Not vulnerable
(4.4.0-9019.20)
|
|
linux-gcp Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1024.25)
|
cosmic |
Released
(4.18.0-1003.4)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Released
(4.15.0-1024.25~16.04.2)
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.18.0-1004.5~18.04.1)
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Does not exist
|
|
linux-gke Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Ignored
(end of standard support)
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Ignored
(end of life)
|
|
linux-grouper Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Does not exist
|
|
linux-hwe Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.18.0-13.14~18.04.1)
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Released
(4.15.0-39.42~16.04.1)
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.18.0-13.14~18.04.1)
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Released
(4.15.0-39.42~16.04.1)
|
|
linux-kvm Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1026.26)
|
cosmic |
Released
(4.18.0-1004.4)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Not vulnerable
(4.4.0-1004.9)
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Does not exist
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Does not exist
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Does not exist
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Does not exist
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
trusty |
Not vulnerable
(4.4.0-13.29~14.04.1)
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Does not exist
|
|
linux-maguro Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Does not exist
|
|
linux-mako Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Ignored
(abandoned)
|
|
linux-manta Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Does not exist
|
|
linux-oem Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1026.31)
|
cosmic |
Released
(4.15.0-1026.31)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Ignored
(end of standard support, was needed)
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1028.30)
|
cosmic |
Released
(4.18.0-1006.8)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Not vulnerable
(4.2.0-1013.19)
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.19~rc7)
|
|
xenial |
Not vulnerable
(4.4.0-1012.12)
|
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-2018-15471
- https://xenbits.xen.org/xsa/advisory-270.html
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1607
- https://www.spinics.net/lists/netdev/msg520271.html
- https://ubuntu.com/security/notices/USN-3820-1
- https://ubuntu.com/security/notices/USN-3819-1
- https://ubuntu.com/security/notices/USN-3820-2
- https://ubuntu.com/security/notices/USN-3820-3
- NVD
- Launchpad
- Debian