CVE-2017-6214
Publication date 23 February 2017
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
The tcp_splice_read function in net/ipv4/tcp.c in the Linux kernel before 4.9.11 allows remote attackers to cause a denial of service (infinite loop and soft lockup) via vectors involving a TCP packet with the URG flag.
From the Ubuntu Security Team
Dmitry Vyukov discovered that the Linux kernel did not properly handle TCP packets with the URG flag. A remote attacker could use this to cause a denial of service.
Status
Package | Ubuntu Release | Status |
---|---|---|
linux | ||
16.04 LTS xenial |
Fixed 4.4.0-75.96
|
|
14.04 LTS trusty |
Fixed 3.13.0-132.181
|
|
linux-armadaxp | ||
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-aws | ||
16.04 LTS xenial |
Fixed 4.4.0-1016.25
|
|
14.04 LTS trusty |
Not affected
|
|
linux-azure | ||
16.04 LTS xenial |
Not affected
|
|
14.04 LTS trusty |
Not affected
|
|
linux-euclid | ||
16.04 LTS xenial | Ignored | |
14.04 LTS trusty | Not in release | |
linux-flo | ||
16.04 LTS xenial | Ignored | |
14.04 LTS trusty | Not in release | |
linux-gcp | ||
16.04 LTS xenial |
Not affected
|
|
14.04 LTS trusty | Not in release | |
linux-gke | ||
16.04 LTS xenial |
Fixed 4.4.0-1012.12
|
|
14.04 LTS trusty | Not in release | |
linux-goldfish | ||
16.04 LTS xenial | Ignored | |
14.04 LTS trusty | Not in release | |
linux-grouper | ||
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-hwe | ||
16.04 LTS xenial |
Fixed 4.10.0-27.30~16.04.2
|
|
14.04 LTS trusty | Not in release | |
linux-hwe-edge | ||
16.04 LTS xenial |
Fixed 4.10.0-27.30~16.04.2
|
|
14.04 LTS trusty | Not in release | |
linux-kvm | ||
16.04 LTS xenial |
Not affected
|
|
14.04 LTS trusty | Not in release | |
linux-linaro-omap | ||
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-linaro-shared | ||
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-linaro-vexpress | ||
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-lts-quantal | ||
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-lts-raring | ||
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-lts-saucy | ||
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-lts-trusty | ||
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-lts-utopic | ||
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-lts-vivid | ||
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Ignored | |
linux-lts-wily | ||
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-lts-xenial | ||
16.04 LTS xenial | Not in release | |
14.04 LTS trusty |
Fixed 4.4.0-75.96~14.04.1
|
|
linux-maguro | ||
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-mako | ||
16.04 LTS xenial | Ignored | |
14.04 LTS trusty | Not in release | |
linux-manta | ||
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-oem | ||
16.04 LTS xenial |
Not affected
|
|
14.04 LTS trusty | Not in release | |
linux-qcm-msm | ||
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-raspi2 | ||
16.04 LTS xenial |
Fixed 4.4.0-1054.61
|
|
14.04 LTS trusty | Not in release | |
linux-snapdragon | ||
16.04 LTS xenial |
Fixed 4.4.0-1057.61
|
|
14.04 LTS trusty | Not in release | |
linux-ti-omap4 | ||
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
Notes
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
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 · High |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-3361-1
- Linux kernel (HWE) vulnerabilities
- 21 July 2017
- USN-3265-1
- Linux kernel vulnerabilities
- 25 April 2017
- USN-3265-2
- Linux kernel (Xenial HWE) vulnerabilities
- 25 April 2017
- USN-3422-2
- Linux kernel (Trusty HWE) vulnerabilities
- 18 September 2017
- USN-3422-1
- Linux kernel vulnerabilities
- 18 September 2017
Other references
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ccf7abb93af09ad0868ae9033d1ca8108bdaec82
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11
- https://github.com/torvalds/linux/commit/ccf7abb93af09ad0868ae9033d1ca8108bdaec82
- https://www.cve.org/CVERecord?id=CVE-2017-6214