Critical severity · published Jan 3, 2018
CVE-2017-18017
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…
9.8
CVSS
52.8%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)52.8% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
3.2 before 3.2.99; 3.3 before 3.10.108; 3.11 before 3.16.54; 3.17 before 3.18.60; 3.19 before 4.1.43; 4.2 before 4.4.76; +2 more · source: NVD
AR
Arx · F5
6.2.0 through 6.4.0 · source: NVD
CP
Caas Platform · Suse
All versions, or not specified · source: NVD
CM
Cloud Magnum Orchestration · Openstack
7 · source: NVD
DL
Debian Linux · Debian
7.0; 8.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Eus · Redhat
7.3; 7.4; 7.6; 7.7 · source: NVD
EL
Enterprise Linux For Real Time · Redhat
7 · source: NVD
EL
Enterprise Linux For Real Time For Nfv · Redhat
7 · source: NVD
EL
Enterprise Linux Server · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.3; 7.4; 7.6; 7.7 · source: NVD
EL
Enterprise Linux Server Tus · Redhat
7.3; 7.4; 7.6; 7.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-18017
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-18017
Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2638fd0f92d4397884fd991d8f4925cb3f081901
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00008.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00013.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00015.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00038.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00047.html
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