CVE-2015-7799
Published: 19 October 2015
The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel through 4.2.3 does not ensure that certain slot numbers are valid, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call.
From the Ubuntu Security Team
郭永刚 discovered that the ppp implementation in the Linux kernel did not ensure that certain slot numbers are valid. A local attacker with the privilege to call ioctl() on /dev/ppp could cause a denial of service (system crash).
Notes
| Author | Note |
|---|---|
| tyhicks | /dev/ppp is only writable by root in Ubuntu |
| 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 |
Priority
Negligible
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
|
linux-armadaxp Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
| This package is not directly supported by the Ubuntu Security Team | ||
|
linux-aws Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-ec2 Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-flo Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-gke Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-grouper Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-hwe Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
| This package is not directly supported by the Ubuntu Security Team | ||
|
linux-lts-raring Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
| This package is not directly supported by the Ubuntu Security Team | ||
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-maguro Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-mako Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-manta Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
upstream |
Released
(4.4~rc1)
|
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7799
- http://www.openwall.com/lists/oss-security/2015/10/09/1
- https://code.google.com/p/android/issues/detail?id=187973
- https://ubuntu.com/security/notices/USN-2841-2
- https://ubuntu.com/security/notices/USN-2841-1
- https://ubuntu.com/security/notices/USN-2843-1
- https://ubuntu.com/security/notices/USN-2842-1
- https://ubuntu.com/security/notices/USN-2842-2
- https://ubuntu.com/security/notices/USN-2844-1
- https://ubuntu.com/security/notices/USN-2843-2
- https://ubuntu.com/security/notices/USN-2843-3
- https://ubuntu.com/security/notices/USN-2886-1
- https://ubuntu.com/security/notices/USN-2886-2
- NVD
- Launchpad
- Debian