Ubuntu.comUB:CVE-2016-6828CVE-2016-6828
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.0004 Low
EPSS
Percentile
14.3%
The tcp_check_send_head function in include/net/tcp.h in the Linux kernel
before 4.7.5 does not properly maintain certain SACK state after a failed
data copy, which allows local users to cause a denial of service
(tcp_xmit_retransmit_queue use-after-free and system crash) via a crafted
SACK option.
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 |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 12.04 | noarch | linux | < 3.2.0-111.153 | UNKNOWN |
| ubuntu | 14.04 | noarch | linux | < 3.13.0-98.145 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux | < 4.4.0-42.62 | UNKNOWN |
| ubuntu | 12.04 | noarch | linux-armadaxp | < 3.2.0-1674.100 | UNKNOWN |
| ubuntu | 12.04 | noarch | linux-lts-trusty | < 3.13.0-98.145~precise1 | UNKNOWN |
| ubuntu | 14.04 | noarch | linux-lts-vivid | < 3.19.0-71.79~14.04.1 | UNKNOWN |
| ubuntu | 14.04 | noarch | linux-lts-xenial | < 4.4.0-42.62~14.04.1 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-raspi2 | < 4.4.0-1027.33 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-snapdragon | < 4.4.0-1030.33 | UNKNOWN |
| ubuntu | 12.04 | noarch | linux-ti-omap4 | < 3.2.0-1489.116 | UNKNOWN |
References
www.openwall.com/lists/oss-security/2016/08/18/6
launchpad.net/bugs/cve/CVE-2016-6828
nvd.nist.gov/vuln/detail/CVE-2016-6828
security-tracker.debian.org/tracker/CVE-2016-6828
ubuntu.com/security/notices/USN-3097-1
ubuntu.com/security/notices/USN-3097-2
ubuntu.com/security/notices/USN-3098-1
ubuntu.com/security/notices/USN-3098-2
ubuntu.com/security/notices/USN-3099-1
ubuntu.com/security/notices/USN-3099-2
ubuntu.com/security/notices/USN-3099-3
ubuntu.com/security/notices/USN-3099-4
www.cve.org/CVERecord?id=CVE-2016-6828
Related
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.0004 Low
EPSS
Percentile
14.3%