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CVE-2019-5597 Details

Description

In FreeBSD 11.3-PRERELEASE and 12.0-STABLE before r347591, 11.2-RELEASE before 11.2-RELEASE-p10, and 12.0-RELEASE before 12.0-RELEASE-p4, a bug in the pf IPv6 fragment reassembly logic incorrectly uses the last extension header offset from the last received packet instead of the first packet allowing maliciously crafted IPv6 packets to cause a crash or potentially bypass the packet filter.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.1 CRITICALVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
http://packetstormsecurity.com/files/152933/FreeBSD-Security-Advisory-FreeBSD-SA-19-05.pf.html	CVE	Third Party AdvisoryVDB Entry
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:05.pf.asc	CVE	PatchVendor Advisory
https://security.netapp.com/advisory/ntap-20190611-0001/	CVE
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html	CVE
https://www.synacktiv.com/ressources/Synacktiv_OpenBSD_PacketFilter_CVE-2019-5597_ipv6_frag.pdf	CVE	ExploitThird Party Advisory
http://www.securityfocus.com/bid/108395	CVE
http://packetstormsecurity.com/files/152933/FreeBSD-Security-Advisory-FreeBSD-SA-19-05.pf.html	[email protected]	Third Party AdvisoryVDB Entry
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:05.pf.asc	[email protected]	PatchVendor Advisory
https://security.netapp.com/advisory/ntap-20190611-0001/	[email protected]
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html	[email protected]
https://www.synacktiv.com/ressources/Synacktiv_OpenBSD_PacketFilter_CVE-2019-5597_ipv6_frag.pdf	[email protected]	ExploitThird Party Advisory
http://www.securityfocus.com/bid/108395	[email protected]

see all 12 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-20	Improper Input Validation	[email protected]

Affected Products

Product	Versions
freebsd freebsd	11.2 - 11.2 p2 11.2 p3 11.2 p4 11.2 p5
CPE cpe:2.3:o:freebsd:freebsd:11.2:-:::::: cpe:2.3:o:freebsd:freebsd:11.2:p2:::::: cpe:2.3:o:freebsd:freebsd:11.2:p3:::::: cpe:2.3:o:freebsd:freebsd:11.2:p4:::::: cpe:2.3:o:freebsd:freebsd:11.2:p5:::::: cpe:2.3:o:freebsd:freebsd:11.2:p6:::::: cpe:2.3:o:freebsd:freebsd:11.2:p7:::::: cpe:2.3:o:freebsd:freebsd:11.2:p9:::::: cpe:2.3:o:freebsd:freebsd:12.0:-:::::: cpe:2.3:o:freebsd:freebsd:12.0:p1:::::: cpe:2.3:o:freebsd:freebsd:12.0:p3:::::: Remediation No remediation found in references.

Product

Versions

freebsd freebsd

11.2 -

11.2 p2

11.2 p3

11.2 p4

11.2 p5

CPE

cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:11.2:p2:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:11.2:p3:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:11.2:p6:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:11.2:p7:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:11.2:p9:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.0:p1:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:12.0:p3:*:*:*:*:*:*

Remediation

No remediation found in references.

Change History

8 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jul 23, 2019	CVE Modified	[email protected]
Jun 11, 2019	CVE Modified	[email protected]
May 21, 2019	CVE Modified	[email protected]
May 21, 2019	Initial Analysis	[email protected]
May 15, 2019	CVE Modified	[email protected]