10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.954 High
EPSS
Percentile
99.4%
The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux
kernel before 4.11, and 4.9.x before 4.9.36, allows remote attackers to
cause a denial of service (use-after-free and memory corruption) or
possibly have unspecified other impact by leveraging the presence of
xt_TCPMSS in an iptables action.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 14.04 | noarch | linux | < 3.13.0-142.191 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < 4.4.0-89.112 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | < 4.4.0-1028.37 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-gcp | < 4.13.0-1002.5 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-gke | < 4.4.0-1024.24 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-hwe | < 4.13.0-26.29~16.04.2 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-hwe-edge | < 4.18.0-8.9~18.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-hwe-edge | < 4.13.0-26.29~16.04.2 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-lts-xenial | < 4.4.0-89.112~14.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-raspi2 | < 4.4.0-1067.75 | UNKNOWN |
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2638fd0f92d4397884fd991d8f4925cb3f081901
patchwork.ozlabs.org/patch/746618/
bugs.launchpad.net/ubuntu/+source/linux/+bug/1739765
github.com/torvalds/linux/commit/2638fd0f92d4397884fd991d8f4925cb3f081901
launchpad.net/bugs/cve/CVE-2017-18017
lkml.org/lkml/2017/4/2/13
nvd.nist.gov/vuln/detail/CVE-2017-18017
security-tracker.debian.org/tracker/CVE-2017-18017
ubuntu.com/security/notices/USN-3583-1
ubuntu.com/security/notices/USN-3583-2
www.cve.org/CVERecord?id=CVE-2017-18017
www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.36
10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.954 High
EPSS
Percentile
99.4%