National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-5598 Detail

Current Description

In FreeBSD 11.3-PRERELEASE before r345378, 12.0-STABLE before r345377, 11.2-RELEASE before 11.2-RELEASE-p10, and 12.0-RELEASE before 12.0-RELEASE-p4, a bug in pf does not check if the outer ICMP or ICMP6 packet has the same destination IP as the source IP of the inner protocol packet allowing a maliciously crafted ICMP/ICMP6 packet could bypass the packet filter rules and be passed to a host that would otherwise be unavailable.

Source:  MITRE
Description Last Modified:  05/15/2019
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://packetstormsecurity.com/files/152934/FreeBSD-Security-Advisory-FreeBSD-SA-19-06.pf.html Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/108395
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:06.pf.asc Patch Vendor Advisory
https://www.synacktiv.com/posts/systems/icmp-reachable.html Third Party Advisory

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:11.2:p2:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:11.2:p3:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:11.2:p6:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:11.2:p7:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:11.2:p9:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:11.2:rc3:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:12.0:p1:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:12.0:p3:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-5598
NVD Published Date:
05/15/2019
NVD Last Modified:
05/21/2019