Vulnerability Details : CVE-2018-17156
In FreeBSD before 11.2-STABLE(r340268) and 11.2-RELEASE-p5, due to incorrectly accounting for padding on 64-bit platforms, a buffer underwrite could occur when constructing an ICMP reply packet when using a non-standard value for the net.inet.icmp.quotelen sysctl.
Vulnerability category: Memory Corruption
Products affected by CVE-2018-17156
- cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-17156
0.51%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 77 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-17156
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
5.9
|
MEDIUM | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
2.2
|
3.6
|
NIST |
CWE ids for CVE-2018-17156
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-17156
-
https://security.freebsd.org/advisories/FreeBSD-EN-18:13.icmp.asc
Exploit;Mitigation;Vendor Advisory
-
http://www.securityfocus.com/bid/106052
FreeBSD CVE-2018-17156 Denial Of Service VulnerabilityThird Party Advisory;VDB Entry
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