Vulnerability CVE-2019-5598


Published: 2019-05-15

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.

Type:

CWE-20

(Improper Input Validation)

Vendor: Freebsd
Product: Freebsd 
Version: 12.0; 11.2;

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None

 References:
http://packetstormsecurity.com/files/152934/FreeBSD-Security-Advisory-FreeBSD-SA-19-06.pf.html
http://www.securityfocus.com/bid/108395
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:06.pf.asc
https://security.netapp.com/advisory/ntap-20190611-0001/
https://www.synacktiv.com/posts/systems/icmp-reachable.html

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