UBUNTU-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. 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.
02 / AFFECTED SOFTWARE
Affected packages
134 explicit affected versions
16 explicit affected versions
56 explicit affected versions
78 explicit affected versions
37 explicit affected versions
19 explicit affected versions
9 explicit affected versions
17 explicit affected versions
37 explicit affected versions
16 explicit affected versions
50 explicit affected versions
48 explicit affected versions
15 explicit affected versions
10 explicit affected versions
10 explicit affected versions
9 explicit affected versions
10 explicit affected versions
7 explicit affected versions
11 explicit affected versions
26 explicit affected versions
51 explicit affected versions
6 explicit affected versions
12 explicit affected versions
1 explicit affected versions
1 explicit affected versions
23 explicit affected versions
1 explicit affected versions
3 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://ubuntu.com/security/CVE-2018-5391
- https://ubuntu.com/security/notices/USN-3740-1
- https://ubuntu.com/security/notices/USN-3740-2
- https://ubuntu.com/security/notices/USN-3741-1
- https://ubuntu.com/security/notices/USN-3741-2
- https://ubuntu.com/security/notices/USN-3742-1
- https://ubuntu.com/security/notices/USN-3742-2
- https://www.cve.org/CVERecord?id=CVE-2018-5391
- https://www.kb.cert.org/vuls/id/641765