CVE-2017-7482
Published: 27 June 2017
In the Linux kernel before version 4.12, Kerberos 5 tickets decoded when using the RXRPC keys incorrectly assumes the size of a field. This could lead to the size-remaining variable wrapping and the data pointer going over the end of the buffer. This could possibly lead to memory corruption and possible privilege escalation.
From the Ubuntu Security Team
石磊 discovered that the RxRPC Kerberos 5 ticket handling code in the Linux kernel did not properly verify metadata. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
Notes
Author | Note |
---|---|
sbeattie | RxRPC is used for AFS |
Priority
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.13.0-16.19)
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Not vulnerable
(4.11.0-10.15)
|
|
trusty |
Released
(3.13.0-126.175)
|
|
xenial |
Released
(4.4.0-89.112)
|
|
yakkety |
Ignored
(end of life, was pending)
|
|
zesty |
Released
(4.10.0-30.34)
|
|
Patches: Introduced by 17926a79320afa9b95df6b977b40cca6d8713cea |
||
linux-armadaxp Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
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-flo Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
xenial |
Ignored
(abandoned)
|
|
yakkety |
Ignored
(end of life)
|
|
zesty |
Does not exist
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
xenial |
Ignored
(end of life, was needed)
|
|
yakkety |
Ignored
(end of life)
|
|
zesty |
Ignored
(end of life)
|
|
linux-grouper Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
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 |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
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 |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-maguro Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-mako Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
xenial |
Ignored
(abandoned)
|
|
yakkety |
Ignored
(end of life)
|
|
zesty |
Does not exist
|
|
linux-manta Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
upstream |
Released
(4.12~rc7)
|
artful |
Not vulnerable
(4.10.0-1013.16)
|
|
bionic |
Not vulnerable
(4.13.0-1005.5)
|
|
trusty |
Does not exist
|
|
xenial |
Released
(4.4.0-1067.75)
|
|
yakkety |
Ignored
(end of life)
|
|
zesty |
Released
(4.10.0-1013.16)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
artful |
Does not exist
|
|
linux-aws Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1001.1)
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Not vulnerable
(4.4.0-1002.2)
|
|
xenial |
Released
(4.4.0-1028.37)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-azure Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1002.2)
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Not vulnerable
(4.15.0-1023.24~14.04.1)
|
|
xenial |
Not vulnerable
(4.11.0-1009.9)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-euclid Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Ignored
(was needed ESM criteria)
|
|
zesty |
Does not exist
|
|
linux-gcp Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1001.1)
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
(4.10.0-1004.4)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-gke Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Released
(4.4.0-1024.24)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-hwe Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Released
(4.10.0-30.34~16.04.1)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
bionic |
Released
(4.18.0-8.9~18.04.1)
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Released
(4.10.0-30.34~16.04.1)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-kvm Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1002.2)
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
(4.4.0-1004.9)
|
|
zesty |
Does not exist
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.12~rc7)
|
|
artful |
Does not exist
|
|
trusty |
Ignored
(end of life, was needed)
|
|
xenial |
Does not exist
|
|
yakkety |
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
(4.12~rc7)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
trusty |
Released
(4.4.0-89.112~14.04.1)
|
|
upstream |
Released
(4.12~rc7)
|
|
xenial |
Does not exist
|
|
yakkety |
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
(4.12~rc7)
|
|
xenial |
Not vulnerable
(4.13.0-1008.9)
|
|
zesty |
Does not exist
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(4.4.0-1069.74)
|
bionic |
Not vulnerable
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.12~rc7)
|
|
xenial |
Released
(4.4.0-1069.74)
|
|
yakkety |
Ignored
(end of life)
|
|
zesty |
Released
(4.4.0-1069.74)
|
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-2017-7482
- https://git.kernel.org/torvalds/c/5f2f97656ada8d811d3c1bef503ced266fcd53a0
- http://seclists.org/oss-sec/2017/q2/602
- https://ubuntu.com/security/notices/USN-3377-1
- https://ubuntu.com/security/notices/USN-3377-2
- https://ubuntu.com/security/notices/USN-3378-1
- https://ubuntu.com/security/notices/USN-3378-2
- https://ubuntu.com/security/notices/USN-3381-1
- https://ubuntu.com/security/notices/USN-3381-2
- NVD
- Launchpad
- Debian