CVE-2019-5598

MEDIUM

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.

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.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html

https://www.synacktiv.com/posts/systems/icmp-reachable.html

Details

Source: MITRE

Published: 2019-05-15

Updated: 2019-06-11

Type: CWE-20

Risk Information

CVSS v2.0

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH