Vulnerability Details : CVE-2019-5597

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.
Published 2019-05-15 16:29:01
Updated 2019-06-11 23:29:01
Source FreeBSD
View at NVD,   CVE.org
Vulnerability category: Input validation

Products affected by CVE-2019-5597

Exploit prediction scoring system (EPSS) score for CVE-2019-5597

EPSS FAQ
6.13%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 94 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-5597

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.4
 MEDIUM AV:N/AC:L/Au:N/C:N/I:P/A:P
10.0
4.9
 NIST
9.1
 CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
3.9
5.2
 NIST

CWE ids for CVE-2019-5597

  • 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.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-5597

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