High severity · published Sep 6, 2018
CVE-2018-5391
The Linux kernel, versions 3.9+, is vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly
7.5
CVSS
32.4%
EPSS
No
On KEV
Description
The Linux kernel, versions 3.9+, is vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause a denial of service condition by sending specially crafted IP fragments. Various vulnerabilities in IP fragmentation have been discovered and fixed over the years. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)32.4% · higher than 98% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
3.9 through 4.18 · source: NVD
WI
Windows · Microsoft
1607; 1703; 1709; 1803 · source: NVD
BA
Big-ip Access Policy Manager · F5
11.5.1 before 11.6.5.1; 12.1.0 before 12.1.5; 13.0.0 before 13.1.3; 14.0.0 before 14.0.1.1; 14.1.0 before 14.1.2.4 · source: NVD
BA
Big-ip Advanced Firewall Manager · F5
11.5.1 before 11.6.5.1; 12.1.0 before 12.1.5; 13.0.0 before 13.1.3; 14.0.0 before 14.0.1.1; 14.1.0 before 14.1.2.4 · source: NVD
BA
Big-ip Analytics · F5
11.5.1 before 11.6.5.1; 12.1.0 before 12.1.5; 13.0.0 before 13.1.3; 14.0.0 before 14.0.1.1; 14.1.0 before 14.1.2.4 · source: NVD
BA
Big-ip Application Acceleration Manager · F5
11.5.1 before 11.6.5.1; 12.1.0 before 12.1.5; 13.0.0 before 13.1.3; 14.0.0 before 14.0.1.1; 14.1.0 before 14.1.2.4 · source: NVD
BA
Big-ip Application Security Manager · F5
11.5.1 before 11.6.5.1; 12.1.0 before 12.1.5; 13.0.0 before 13.1.3; 14.0.0 before 14.0.1.1; 14.1.0 before 14.1.2.4 · source: NVD
BD
Big-ip Domain Name System · F5
11.5.1 before 11.6.5.1; 12.1.0 before 12.1.5; 13.0.0 before 13.1.3; 14.0.0 before 14.0.1.1; 14.1.0 before 14.1.2.4 · source: NVD
BE
Big-ip Edge Gateway · F5
11.5.1 before 11.6.5.1; 12.1.0 before 12.1.5; 13.0.0 before 13.1.3; 14.0.0 before 14.0.1.1; 14.1.0 before 14.1.2.4 · source: NVD
BF
Big-ip Fraud Protection Service · F5
11.5.1 before 11.6.5.1; 12.1.0 before 12.1.5; 13.0.0 before 13.1.3; 14.0.0 before 14.0.1.1; 14.1.0 before 14.1.2.4 · source: NVD
BG
Big-ip Global Traffic Manager · F5
11.5.1 before 11.6.5.1; 12.1.0 before 12.1.5; 13.0.0 before 13.1.3; 14.0.0 before 14.0.1.1; 14.1.0 before 14.1.2.4 · source: NVD
BL
Big-ip Link Controller · F5
11.5.1 before 11.6.5.1; 12.1.0 before 12.1.5; 13.0.0 before 13.1.3; 14.0.0 before 14.0.1.1; 14.1.0 before 14.1.2.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-5391
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-5391
Third Party Advisory
http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-004.txt
Broken Link
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-linux-en
Mailing List
http://www.openwall.com/lists/oss-security/2019/06/28/2
Mailing List
http://www.openwall.com/lists/oss-security/2019/07/06/3
Mailing List
http://www.openwall.com/lists/oss-security/2019/07/06/4
Third Party Advisory
http://www.securityfocus.com/bid/105108
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