The Linux kernel, versions 3.9+, IP implementation is vulnerable to denial of service conditions with low rates of…
Linux · Kernel
The Linux kernel (versions 3.9 and later) has a flaw in its IP implementation's fragment re-assembly logic, which handles incoming IP fragments. An attacker who sends specially crafted IP fragments at low rates can exhaust resources and cause a denial of service.
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.
- Exploited
- Yes, in VulnCheck KEV
- Reports
- 0
- Tactics
- 0/15
Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
First seen exploited 18 months after disclosure. Public exploit code (PoC-in-GitHub) appeared 8 years after disclosure.
- Disclosedday 0
- First seen exploitedVulnCheck KEV evidence+18 mo
- Public exploit codePoC-in-GitHub+8 yrs
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
No techniques linkedNo ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.