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CVE-2019-5597

nvd nist
Published: May 15, 2019Modified: Jun 17, 2026

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9.1
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Exploitability: 3.9 / Impact: 5.2
Source: NVD

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.

Affected (11)

Products: Freebsd: Freebsd
Freebsd
1 product
Freebsd
Configuration A
11 vulnerable
Vulnerable SoftwareAffected Versions
Freebsd
Freebsd
Version 11.2
Freebsd
Version 11.2 p2
Freebsd
Version 11.2 p3
Freebsd
Version 11.2 p4
Freebsd
Version 11.2 p5
Freebsd
Version 11.2 p6
Freebsd
Version 11.2 p7
Freebsd
Version 11.2 p9
Freebsd
Version 12.0
Freebsd
Version 12.0 p1
Freebsd
Version 12.0 p3

Related CWEs

CWE-20
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

References (12)

Source: secteam@freebsd.org
Third Party AdvisoryVDB Entry
Source: secteam@freebsd.org
Source: secteam@freebsd.org
PatchVendor Advisory
Source: secteam@freebsd.org
Source: secteam@freebsd.org
Source: secteam@freebsd.org
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory

Timeline

No history available yet.