CVE-2019-5597

CVSS V2 Medium 6.4 CVSS V3 Critical 9.1
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.
Overview
  • CVE ID
  • CVE-2019-5597
  • Assigner
  • secteam@freebsd.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2019-05-15T16:29:00
  • Last Modified Date
  • 2019-06-11T23:29:00
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:11.2:p2:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:11.2:p3:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:11.2:p6:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:11.2:p7:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:11.2:p9:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.0:p1:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.0:p3:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 6.4
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 4.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 9.1
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.2
References
Reference URL Reference Tags
https://www.synacktiv.com/ressources/Synacktiv_OpenBSD_PacketFilter_CVE-2019-5597_ipv6_frag.pdf Exploit Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:05.pf.asc Patch Vendor Advisory
http://packetstormsecurity.com/files/152933/FreeBSD-Security-Advisory-FreeBSD-SA-19-05.pf.html Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/108395
https://security.netapp.com/advisory/ntap-20190611-0001/
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-5597
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5597
History
Created Old Value New Value Data Type Notes
2022-05-10 07:50:33 Added to TrackCVE
2022-12-03 20:41:20 2019-05-15T16:29Z 2019-05-15T16:29:00 CVE Published Date updated
2022-12-03 20:41:20 2019-06-11T23:29:00 CVE Modified Date updated
2022-12-03 20:41:20 Modified Vulnerability Status updated