High severity · published May 15, 2019
CVE-2019-5598
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…
7.5
CVSS
3.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.3% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
Freebsd · Freebsd
11.2; 11.2; 11.2; 11.2; 11.2; 11.2; +6 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-5598
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-5598
Third Party Advisory
http://packetstormsecurity.com/files/152934/FreeBSD-Security-Advisory-FreeBSD-SA-19-06.pf.html
www.securityfocus.com
http://www.securityfocus.com/bid/108395
Patch
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:06.pf.asc
security.netapp.com
https://security.netapp.com/advisory/ntap-20190611-0001/
www.oracle.com
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
Third Party Advisory
https://www.synacktiv.com/posts/systems/icmp-reachable.html
More from Freebsd
10.0
CVE-2024-43102
umtx Kernel panic or Use-After-Free
10.0
CVE-2018-17160
In FreeBSD before 11.2-STABLE(r341486) and 11.2-RELEASE-p6, insufficient bounds checking in one of the device models provided by bhyve can permit a guest operating system to…
9.8
CVE-2026-101306
Multiple jail filesystem root escapes
9.8
CVE-2026-58082
Stack based buffer overflow in iconv(3)
9.8
CVE-2026-58081
Heap based buffer overflow in iconv(3)