Vulnerability Details : CVE-2017-1081
In FreeBSD before 11.0-STABLE, 11.0-RELEASE-p10, 10.3-STABLE, and 10.3-RELEASE-p19, ipfilter using "keep state" or "keep frags" options can cause a kernel panic when fed specially crafted packet fragments due to incorrect memory handling.
Vulnerability category: Input validation
Products affected by CVE-2017-1081
- cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:10.3:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:10.3:p19:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.0:p10:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-1081
0.41%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 71 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-1081
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.8
|
HIGH | AV:N/AC:L/Au:N/C:N/I:N/A:C |
10.0
|
6.9
|
NIST | |
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2017-1081
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The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
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The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: secteam@freebsd.org (Secondary)
References for CVE-2017-1081
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http://www.securityfocus.com/bid/98089
FreeBSD CVE-2017-1081 Use After Free Denial of Service VulnerabilityThird Party Advisory;VDB Entry
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http://www.securitytracker.com/id/1038369
FreeBSD ipfilter Hash Table Bug Lets Remote Users Cause the Target System to Reload - SecurityTrackerThird Party Advisory;VDB Entry
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https://www.freebsd.org/security/advisories/FreeBSD-SA-17:04.ipfilter.asc
Vendor Advisory
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