Vulnerability Details : CVE-2017-7177
Suricata before 3.2.1 has an IPv4 defragmentation evasion issue caused by lack of a check for the IP protocol during fragment matching.
Vulnerability category: Bypass
Exploit prediction scoring system (EPSS) score for CVE-2017-7177
Probability of exploitation activity in the next 30 days: 0.17%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 54 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-7177
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST |
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2017-7177
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The product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-7177
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https://github.com/inliniac/suricata/commit/4a04f814b15762eb446a5ead4d69d021512df6f8
defrag - take protocol into account during re-assembly · OISF/suricata@4a04f81 · GitHubIssue Tracking;Patch;Third Party Advisory
-
https://redmine.openinfosecfoundation.org/issues/2019
Bug #2019: IPv4 defrag evasion issue - Suricata - Open Information Security FoundationIssue Tracking;Patch;Third Party Advisory
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https://lists.debian.org/debian-lts-announce/2018/12/msg00000.html
[SECURITY] [DLA 1603-1] suricata security update
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http://www.securityfocus.com/bid/97047
Suricata CVE-2017-7177 Security Bypass Vulnerability
Products affected by CVE-2017-7177
- cpe:2.3:a:openinfosecfoundation:suricata:*:*:*:*:*:*:*:*