Ubuntu.comUB:CVE-2017-7979CVE-2017-7979
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
5.1%
The cookie feature in the packet action API implementation in
net/sched/act_api.c in the Linux kernel 4.11.x through 4.11-rc7 mishandles
the tb nlattr array, which allows local users to cause a denial of service
(uninitialized memory access and refcount underflow, and system hang or
crash) or possibly have unspecified other impact via “tc filter add”
commands in certain contexts. NOTE: this does not affect stable kernels,
such as 4.10.x, from kernel.org.
Bugs
Notes
| Author | Note |
|---|---|
| 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 |
References
marc.info/?l=linux-netdev&m=149200742616349
marc.info/?l=linux-netdev&m=149200746116365
marc.info/?l=linux-netdev&m=149200746116366
marc.info/?l=linux-netdev&m=149251041420194
marc.info/?l=linux-netdev&m=149251041420195
marc.info/?l=linux-netdev&m=149272038713473&w=2
bugs.launchpad.net/ubuntu/+source/linux/+bug/1682368
bugzilla.proxmox.com/show_bug.cgi?id=1351
launchpad.net/bugs/cve/CVE-2017-7979
nvd.nist.gov/vuln/detail/CVE-2017-7979
security-tracker.debian.org/tracker/CVE-2017-7979
ubuntu.com/security/notices/USN-3314-1
www.cve.org/CVERecord?id=CVE-2017-7979
Related
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
5.1%